commit 689cb7c016d51f030ad09d5433f74485e6b09e0c
Author: yumoqing <yumoqing@gmail.com>
Date:   Tue May 14 10:47:28 2019 +0800

    first commit

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..946acb7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,121 @@
+# SQLOR
+
+SQLOR is a database api for python3, it is base on the python's DBAPI2 
+
+## Feature
+
+* Multiple database supported(Oracle, MySql, Postgresql, SQL Server
+* Both asynchronous API & synchronous API supported
+* Connection pools 
+* Connection life cycle managements
+* Easy using API
+* Resources(connection object, cursor object) automatic recycled
+
+
+## requirements
+
+* python 3.5 or above
+* asyncio
+* Oracle DBAPI2 driver(cx_Oracle)
+* MySQL DBAPI2 driver(mysql-connector)
+* Postgresql DBAPI2 driver(psycopg2-binrary)
+* Asynchronous MySQL driver(aiomysql)
+* Asynchronous Postgresql driver(aiopg)
+* Other driver can be easy integreated
+
+## Using
+
+```
+import asyncio
+
+from sqlor.dbpools  import DBPools
+
+dbs={
+        "aiocfae":{
+                "driver":"aiomysql",
+                "async_mode":True,
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        },
+        "cfae":{
+                "driver":"mysql.connector",
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        }
+}
+
+loop = asyncio.get_event_loop()
+pool = DBPools(dbs,loop=loop)
+
+async def testfunc():
+        @pool.runSQL
+        def sql(db,ns,callback):
+                return {
+                "sql_string":"select * from product",
+        }
+        x  = await sql('cfae',{},print)
+        x  = await sql('aiocfae',{},print)
+
+loop.run_until_complete(testfunc())
+```
+
+## API
+
+
+### Databases description data(dbdesc)
+
+sqlor uses a dbdesc data(databases description data) which description 
+how many databases and what database will using, and them connection parameters to create a dbpools objects
+
+dbdesc data is a dict data, format of the dbdesc as follow:
+```
+{
+        "aiocfae":{			# name to identify a database connect
+                "driver":"aiomysql",	# database dbapi2 driver package name 
+                "async_mode":True,	# indicte this connection is asynchronous mode
+                "coding":"utf8",	# charset coding
+                "dbname":"cfae",	# database real name
+                "kwargs":{		# connection parameters
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        },
+        "cfae":{
+                "driver":"mysql.connector",
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        }
+}
+
+```
+sqlor can using multiple databases and difference databases by using difference database driver
+
+### sql description data
+
+
+## class
+
+### DBPools
+
+### SQLor
+
diff --git a/build/lib/sqlor/__init__.py b/build/lib/sqlor/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/build/lib/sqlor/aiomysqlor.py b/build/lib/sqlor/aiomysqlor.py
new file mode 100644
index 0000000..26c6fb7
--- /dev/null
+++ b/build/lib/sqlor/aiomysqlor.py
@@ -0,0 +1,7 @@
+from .mysqlor import MySqlor
+
+class AioMysqlor(MySqlor):
+	@classmethod
+	def isMe(self,name):
+		return name=='aiomysql'
+
diff --git a/build/lib/sqlor/aiopostgresqlor.py b/build/lib/sqlor/aiopostgresqlor.py
new file mode 100644
index 0000000..7094ebc
--- /dev/null
+++ b/build/lib/sqlor/aiopostgresqlor.py
@@ -0,0 +1,8 @@
+
+from .postgresqlor import PostgreSQLor
+class AioPostgresqlor(PostgreSQLor):
+	@classmethod
+	def isMe(self,name):
+		return name=='aiopg'
+
+
diff --git a/build/lib/sqlor/dbpools.py b/build/lib/sqlor/dbpools.py
new file mode 100644
index 0000000..6ee08c0
--- /dev/null
+++ b/build/lib/sqlor/dbpools.py
@@ -0,0 +1,277 @@
+
+import asyncio
+from queue import Queue
+from functools import wraps 
+import codecs
+
+from appPublic.myImport import myImport
+from appPublic.dictObject import DictObject
+from appPublic.Singleton import SingletonDecorator
+from appPublic.myjson import loadf
+from appPublic.jsonConfig import getConfig
+
+from .sor import SQLor
+from .mssqlor	import MsSqlor
+from .oracleor import Oracleor
+from .sqlite3or import SQLite3or
+from .mysqlor import MySqlor
+from .aiomysqlor import AioMysqlor
+from .aiopostgresqlor import AioPostgresqlor
+
+
+def sqlorFactory(dbdesc):
+	driver = dbdesc.get('driver',dbdesc)
+	def findSubclass(name,klass):
+		for k in klass.__subclasses__():
+			if k.isMe(name):
+				return k
+			k1 = findSubclass(name,k)
+			if k1 is not None:
+				return k1
+		return None
+	k = findSubclass(driver,SQLor)
+	if k is None:
+		return SQLor(dbdesc=dbdesc)
+	return k(dbdesc=dbdesc)
+
+def sqlorFromFile(dbdef_file,coding='utf8'):
+	dbdef = loadf(dbdef_file)
+	return sqlorFactory(dbdef)
+	
+class LifeConnect:
+	__conndict = {}
+	def __init__(self,connfunc,kw,use_max=1000,async_mode=False):
+		self.connfunc = connfunc
+		self.async_mode = async_mode
+		self.use_max = use_max
+		self.kw = kw
+		self.conn = None
+	
+	def print(self):
+		print(self.use_max)
+		print(self.conn)
+
+	async def _mkconn(self):
+		if self.async_mode:
+			self.conn = await self.connfunc(**self.kw)
+		else:
+			self.conn = self.connfunc(**self.kw)
+		self.use_cnt = 0
+		self.__conndict[self.conn] = self
+
+	async def use(self):
+		if self.conn is None:
+			await self._mkconn()
+		conn = self.conn
+		if await self.testok():
+			return conn
+		del self.__conndict[conn]
+		await self._mkconn()
+
+	@classmethod
+	async def free(self,conn):
+		lc = self.__conndict[conn]
+		lc.use_cnt = lc.use_cnt + 1
+		if lc.use_cnt >= lc.use_max:
+			await lc.conn.close()
+			await lc._mkcomm()
+		return lc
+
+	async def testok(self):
+		if self.async_mode:
+			async with self.conn.cursor() as cur:
+				try:
+					await cur.execute('select 1 as cnt')
+					return True
+				except:
+					return False
+		else:
+			cur = self.conn.cursor()
+			try:
+				cur.execute('select 1 as cnt')
+				r = cur.fetchall()
+				return True
+			except:
+				return False
+			finally:
+				cur.close()
+	
+class ConnectionPool(object):
+	def __init__(self,dbdesc,loop):
+		self.dbdesc = dbdesc
+		self.async_mode = dbdesc.get('async_mode',False)
+		self.loop = loop
+		self.driver = myImport(self.dbdesc['driver'])
+		self.maxconn = dbdesc.get('maxconn',5)
+		self.maxuse = dbdesc.get('maxuse',1000)
+		self._pool = Queue(self.maxconn)
+		self._fillPool()
+		self.using = []
+		self.use_cnt = 0
+		self.max_use = 1000
+	
+	def _fillPool(self):
+		for i in range(self.maxconn):
+			lc = self.connect()
+			i = i + 1
+	
+	def connect(self):
+		lc = LifeConnect(self.driver.connect,self.dbdesc['kwargs'],
+				use_max=self.maxuse,async_mode=self.async_mode)
+		self._pool.put(lc)
+		return lc
+
+	def isEmpty(self):
+		return self._pool.empty()
+	
+	def isFull(self):
+		return self._pool.full()
+		
+	async def aquire(self):
+		lc = self._pool.get()
+		self.using.append(lc)
+		conn = await lc.use()
+		return conn
+
+	async def release(self,conn):
+		lc = await LifeConnect.free(conn)
+		self.using = [c for c in self.using if c != lc ]
+		self._pool.put(lc)
+	
+@SingletonDecorator
+class DBPools:
+	def __init__(self,databases={},max_connect=10,loop=None):
+		if loop is None:
+			loop = asyncio.get_event_loop()
+		self.loop = loop
+		self._cpools = {}
+		self.databases = databases
+	
+	def addDatabase(self,name,desc):
+		self.databases[name] = desc
+
+	async def getSqlor(self,name):
+		desc = self.databases.get(name)
+		sor = sqlorFactory(desc)
+		sor.name = name
+		a,conn,cur = await self._aquireConn(name)
+		sor.setCursor(a,conn,cur)
+		return sor
+
+	async def freeSqlor(self,sor):
+		await self._releaseConn(sor.name,sor.conn,sor.cur)
+
+	async def _aquireConn(self,dbname):
+		p = self._cpools.get(dbname)
+		if p == None:
+			p = ConnectionPool(self.databases.get(dbname),self.loop)
+			self._cpools[dbname] = p
+		conn = await p.aquire()
+		if self.isAsyncDriver(dbname):
+			cur = await conn.cursor()
+		else:
+			cur = conn.cursor()
+		return self.isAsyncDriver(dbname),conn,cur
+	
+	def isAsyncDriver(self,dbname):
+		ret = self.databases[dbname].get('async_mode',False)
+		return ret
+
+	async def _releaseConn(self,dbname,conn,cur):
+		if self.isAsyncDriver(dbname):
+			await cur.close()
+		else:
+			try:
+				cur.fetchall()
+			except:
+				pass
+			cur.close()
+		p = self._cpools.get(dbname)
+		if p == None:
+			raise Exception('database (%s) not connected'%dbname)
+		await p.release(conn)
+
+	def inSqlor(self,func):
+		@wraps(func)
+		async def wrap_func(sor,dbname,*args,**kw):
+			sor = await self.getSqlor(dbname)
+			try:
+				ret = await func(sor,dbname,*args,**kw)
+				return ret
+			except Exception as e:
+				print('error',sor)
+				raise e
+			finally:
+				await self.freeSqlor(sor)
+
+		return wrap_func
+				
+	def runSQL(self,func):
+		@wraps(func)
+		async def wrap_func(dbname,NS,callback,**kw):
+			sor = await self.getSqlor(dbname)
+			desc = func(dbname,NS,callback,**kw)
+			try:
+				ret = await sor.runSQL(desc,NS,callback,**kw)
+			except Exception as e:
+				print('error:',e)
+				raise e
+			finally:
+				await self.freeSqlor(sor)
+		return wrap_func
+
+	def runSQLPaging(self,func):
+		@wraps(func)
+		async def wrap_func(dbname,NS,**kw):
+			sor = await self.getSqlor(dbname)
+			desc = func(dbname,NS,**kw)
+			total = await sor.record_count(desc,NS)
+			recs = await sor.pagingdata(desc,NS)
+			data = {
+				"total":total,
+				"rows":recs
+			}
+			print(len(recs),'records return')
+			await self.freeSqlor(sor)
+			return data
+		return wrap_func
+
+	async def runSQLResultFields(self, dbname,NS,**kwargs):
+			sor = self.getSqlor(dbname)
+			desc = func(dbname,NS,**kw)
+			conn = await self._aquireConn(dbname)
+			async with conn.cursor() as cur:
+				sor.setCursor(conn,cur)
+				ret=await sor.sqlIterator(desc,NS)
+				ret = [ {'name':i[0],'type':i[1]} for i in cur.description ]
+				return ret
+			await self._releaseConn(dbname,conn)
+
+	async def getTables(self,dbname):
+		@self.inSqlor
+		async def _getTables(sor,dbname):
+			ret = await sor.tables()
+			return  ret
+		return await _getTables(None,dbname)
+
+	async def getTableFields(self,dbname,tblname):
+		@self.inSqlor
+		async def _getTableFields(sor,dbname,tblname):
+			ret = await sor.fields(tblname)
+			return ret
+		return await _getTableFields(None,dbname,tblname)
+
+	async def getTablePrimaryKey(self,dbname,tblname):
+		@self.inSqlor
+		async def _getTablePrimaryKey(sor,dbname,tblname):
+			ret = await sor.primary(tblname)
+			return  ret
+		return await _getTablePrimaryKey(None,dbname,tblname)
+		
+	async def getTableForignKeys(self,dbname,tblname):
+		@self.inSqlor
+		async def _getTableForignKeys(sor,dbname,tblname):
+			ret = await sor.fkeys(tblname)
+			return  ret
+		return await _getTableForignKeys(None,dbname,tblname)
+	
diff --git a/build/lib/sqlor/ddl_template_mysql.py b/build/lib/sqlor/ddl_template_mysql.py
new file mode 100644
index 0000000..5c9b039
--- /dev/null
+++ b/build/lib/sqlor/ddl_template_mysql.py
@@ -0,0 +1,55 @@
+mysql_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+VARCHAR({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+int
+{%- elif type=='long' -%}
+bigint
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+double({{len}},{{dec}})
+{%- elif type=='date' -%}
+date
+{%- elif type=='time' -%}
+time
+{%- elif type=='datetime' -%}
+datetime
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- elif type=='text' -%}
+longtext
+{%- elif type=='bin' -%}
+longblob
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+{% macro primary() %}
+{% if len(','.join(summary[0].primary))>0 %}
+,primary key({{','.join(summary[0].primary)}})
+{% endif %}
+{% endmacro %}
+drop table {{summary[0].name}};
+CREATE TABLE {{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}} {%if field.title -%} comment '{{field.title}}'{%- endif %}{%- if not loop.last -%},{%- endif -%}
+{% endfor %}
+{{primary()}}
+)
+engine=innodb 
+default charset=utf8 
+{% if summary[0].title %}comment '{{summary[0].title}}'{% endif %}
+;
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+"""
\ No newline at end of file
diff --git a/build/lib/sqlor/ddl_template_oracle.py b/build/lib/sqlor/ddl_template_oracle.py
new file mode 100644
index 0000000..ff39372
--- /dev/null
+++ b/build/lib/sqlor/ddl_template_oracle.py
@@ -0,0 +1,49 @@
+oracle_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+VARCHAR2({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+NUMBER
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+NUMBER({{len}},{{dec}})
+{%- elif type=='date' or type=='time' -%}
+DATE
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- elif type=='text' -%}
+CLOB
+{%- elif type=='bin' -%}
+BLOB
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+{% macro primary() %}
+{% if len(','.join(summary[0].primary))>0 %}
+,primary key({{','.join(summary[0].primary)}})
+{% endif %}
+{% endmacro %}
+drop table {{summary[0].name}};
+CREATE TABLE {{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}}{%- if not loop.last -%},{%- endif -%}
+{% endfor %}
+{{primary()}}
+);
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+COMMENT ON TABLE {{summary[0].name}} IS '{{summary[0].title}}';
+{% for field in fields %}
+COMMENT ON COLUMN {{summary[0].name}}.{{field.name}} is '{{field.title}}';
+{% endfor %}
+"""
\ No newline at end of file
diff --git a/build/lib/sqlor/ddl_template_postgresql.py b/build/lib/sqlor/ddl_template_postgresql.py
new file mode 100644
index 0000000..6b17592
--- /dev/null
+++ b/build/lib/sqlor/ddl_template_postgresql.py
@@ -0,0 +1,45 @@
+postgresql_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+VARCHAR({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+INTEGER
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+NUMERIC({{len}},{{dec}})
+{%- elif type=='date' -%}
+DATE
+{%- elif type=='time' -%}
+TIME
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+{% macro primary() %}
+primary key({{','.join(summary[0].primary)}})
+{% endmacro %}
+DROP TABLE IF EXISTS {{summary[0].name}};
+CREATE TABLE {{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}},
+{% endfor %}
+{{primary()}}
+);
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+COMMENT ON TABLE {{summary[0].name}} IS '{{summary[0].title.decode('utf8')}}';
+{% for field in fields %}
+COMMENT ON COLUMN {{summary[0].name}}.{{field.name}} is '{{field.title.decode('utf8')}}';
+{% endfor %}
+"""
\ No newline at end of file
diff --git a/build/lib/sqlor/ddl_template_sqlserver.py b/build/lib/sqlor/ddl_template_sqlserver.py
new file mode 100644
index 0000000..49e73c7
--- /dev/null
+++ b/build/lib/sqlor/ddl_template_sqlserver.py
@@ -0,0 +1,51 @@
+sqlserver_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+NVARCHAR({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+NUMERIC
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+numeric({{len}},{{dec}})
+{%- elif type=='date' or type=='time' -%}
+DATE
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- elif type=='text' -%}
+NVARCHAR(MAX)
+{%- elif type=='bin' -%}
+IMAGE
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+
+{% macro primary() %}
+{% if len(','.join(summary[0].primary))>0 %}
+,primary key({{','.join(summary[0].primary)}})
+{% endif %}
+{% endmacro %}
+
+drop table dbo.{{summary[0].name}};
+CREATE TABLE dbo.{{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}}{%- if not loop.last -%},{%- endif -%}
+{% endfor %}
+{{primary()}}
+)
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{{summary[0].title}}' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'{{summary[0].name}}'
+{% for field in fields %}
+EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{{field.title}}' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'{{summary[0].name}}', @level2type=N'COLUMN',@level2name=N'{{field.name}}'
+{% endfor %}
+"""
\ No newline at end of file
diff --git a/build/lib/sqlor/mssqlor.py b/build/lib/sqlor/mssqlor.py
new file mode 100644
index 0000000..b527a1a
--- /dev/null
+++ b/build/lib/sqlor/mssqlor.py
@@ -0,0 +1,175 @@
+# -*- coding:utf8 -*-
+from .sor import SQLor
+from .ddl_template_sqlserver import sqlserver_ddl_tmpl
+
+class MsSqlor(SQLor):
+	ddl_template = sqlserver_ddl_tmpl
+	db2modelTypeMapping = {
+		'bit':'short',
+		'tinyint':'short',
+		'date':'date',
+		'bigint':'long',
+		'smallint':'short',
+		'int':'long',
+		'decimal':'float',
+		'numeric':'float',
+		'smallmoney':'float',
+		'money':'float',
+		'real':'float',
+		'float':'float',
+		'datetime':'date',
+		'timestamp':'timestamp',
+		'uniqueidentifier':'timestamp',
+		'char':'char',
+		'varchar':'str',
+		'text':'text',
+		'nchar':'str',
+		'nvarchar':'str',
+		'ntext':'text',
+		'binary':'str',
+		'varbinary':'str',
+		'image':'file',
+	}
+	model2dbTypemapping = {
+		'date':'datetime',
+		'time':'date',
+		'timestamp':'timestamp',
+		'str':'nvarchar',
+		'char':'char',
+		'short':'int',
+		'long':'numeric',
+		'float':'numeric',
+		'text':'ntext',
+		'file':'image',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='pymssql'
+			
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '%s'
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			d = [ i for i in dataList.values()]
+		else:
+			d = [ i['value'] for i in dataList]
+		return tuple(d)
+
+	def pagingSQLmodel(self):
+		return u"""select *
+from (
+	select row_number() over(order by $[sort]$ $[order]$) as _row_id,page_s.* 
+	from (%s) page_s
+	) A
+where _row_id >= $[from_line]$ and _row_id < $[end_line]$"""
+
+	def tablesSQL(self):
+		sqlcmd = u"""select 
+	lower(d.name) as name,
+	lower(cast(Isnull(f.VALUE,d.name) as nvarchar )) title
+	from sysobjects d  
+		left join sys.extended_properties f on d.id = f.major_id and f.minor_id = 0
+	where d.xtype = 'U'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		sqlcmd=u"""SELECT name = lower(a.name)
+		   ,type = b.name
+		   ,length = Columnproperty(a.id,a.name,'PRECISION')
+		   ,dec = Isnull(Columnproperty(a.id,a.name,'Scale'),null)
+		   ,nullable = CASE 
+					WHEN a.isnullable = 1 THEN 'yes'
+					ELSE 'no'
+				  END
+		   ,title = lower(cast(Isnull(g.[value],a.name) as nvarchar) )
+		   ,table_name = lower(d.name)
+	FROM     syscolumns a
+			 LEFT JOIN systypes b
+			   ON a.xusertype = b.xusertype
+			 INNER JOIN sysobjects d
+			   ON (a.id = d.id)
+				  AND (d.xtype = 'U')
+				  AND (d.name <> 'dtproperties') 
+			  INNER JOIN  sys.all_objects c
+				ON d.id=c.object_id 
+					AND  schema_name(schema_id)='dbo'
+			 LEFT JOIN sys.extended_properties g
+			   ON (a.id = g.major_id)
+				  AND (a.colid = g.minor_id)
+			 LEFT JOIN sys.extended_properties f
+			   ON (d.id = f.major_id)
+				  AND (f.minor_id = 0)"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(d.name)='%s'
+	ORDER BY a.id,a.colorder""" % tablename.lower()
+		else:
+			sqlcmd = sqlcmd + """ ORDER BY a.id,a.colorder"""
+		return sqlcmd
+
+	def fkSQL(self,tablename=None):
+		sqlcmd = u"""select
+  MainCol.name AS field          -- [主表列名]
+  ,oSub.name  AS  fk_table       -- [子表名称],
+  ,SubCol.name AS fk_field       -- [子表列名],
+from
+  sys.foreign_keys fk  
+    JOIN sys.all_objects oSub  
+        ON (fk.parent_object_id = oSub.object_id)
+    JOIN sys.all_objects oMain 
+        ON (fk.referenced_object_id = oMain.object_id)
+    JOIN sys.foreign_key_columns fkCols 
+        ON (fk.object_id = fkCols.constraint_object_id)
+    JOIN sys.columns SubCol 
+        ON (oSub.object_id = SubCol.object_id  
+            AND fkCols.parent_column_id = SubCol.column_id)
+    JOIN sys.columns MainCol 
+        ON (oMain.object_id = MainCol.object_id  
+            AND fkCols.referenced_column_id = MainCol.column_id)"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """	where lower(oMain.name) = '%s'""" % tablename.lower()
+
+		return sqlcmd
+
+	def pkSQL(self,tablename=None):
+		sqlcmd = u"""select 
+	lower(a.table_name) as table_name,
+	lower(b.column_name) as field_name
+ from information_schema.table_constraints a
+ inner join information_schema.constraint_column_usage b
+ on a.constraint_name = b.constraint_name
+ where a.constraint_type = 'PRIMARY KEY'"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(a.table_name) = '%s'""" % tablename.lower()
+		return sqlcmd
+
+	def indexesSQL(self,tablename=None):
+		sqlcmd = """SELECT
+index_name=lower(IDX.Name),
+index_type=case when KC.type_desc is null then 'primary' WHEN IDX.is_unique=1 THEN 'unique' ELSE 'ununique' END,
+table_name=lower(O.Name),
+column_name=lower(C.Name)
+FROM sys.indexes IDX 
+INNER JOIN sys.index_columns IDXC
+ON IDX.[object_id]=IDXC.[object_id]
+AND IDX.index_id=IDXC.index_id
+LEFT JOIN sys.key_constraints KC
+ON IDX.[object_id]=KC.[parent_object_id]
+AND IDX.index_id=KC.unique_index_id
+INNER JOIN sys.objects O
+ON O.[object_id]=IDX.[object_id]
+INNER JOIN sys.columns C
+ON O.[object_id]=C.[object_id]
+AND O.type='U'
+AND O.is_ms_shipped=0
+AND IDXC.Column_id=C.Column_id"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(O.name)='%s'""" % tablename.lower()
+		return sqlcmd
diff --git a/build/lib/sqlor/mysqlor.py b/build/lib/sqlor/mysqlor.py
new file mode 100644
index 0000000..e5df373
--- /dev/null
+++ b/build/lib/sqlor/mysqlor.py
@@ -0,0 +1,179 @@
+# -*- coding:utf8 -*-
+from mysql import connector
+from appPublic.argsConvert import ArgsConvert,ConditionConvert
+
+from .sor import SQLor
+from .ddl_template_mysql import mysql_ddl_tmpl
+class MySqlor(SQLor):
+	ddl_template = mysql_ddl_tmpl
+	db2modelTypeMapping = {
+		'tinyint':'short',
+		'smallint':'short',
+		'mediumint':'long',
+		'int':'long',
+		'bigint':'long',
+		'decimal':'float',
+		'double':'float',
+		'float':'float',
+		'char':'char',
+		'varchar':'str',
+		'tinyblob':'text',
+		'tinytext':'text',
+		'mediumblob':'text',
+		'mediumtext':'text',
+		'blob':'text',
+		'text':'text',
+		'mediumblob':'text',
+		'mediumtext':'text',
+		'longblob':'bin',
+		'longtext':'text',
+		'barbinary':'text',
+		'binary':'text',
+		'date':'date',
+		'time':'time',
+		'datetime':'datetime',
+		'timestamp':'datestamp',
+		'year':'short',
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'date',
+		'timestamp':'timestamp',
+		'str':'varchar',
+		'char':'char',
+		'short':'int',
+		'long':'bigint',
+		'float':'double',
+		'text':'longtext',
+		'bin':'longblob',
+		'file':'longblob',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='mysql.connector'
+	
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def _opendb(self):
+		self.conn = connector.connect(**self.dbdesc['kwargs'])
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '%s'
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			d = [ i for i in dataList.values()]
+		else:
+			d = [ i['value'] for i in dataList]
+		return tuple(d)
+
+	def pagingSQL(self,sql,paging,NS):
+		"""
+		default it not support paging
+		"""
+		page = int(NS.get(paging['pagename'],1))
+		rows = int(NS.get(paging['rowsname'],10))
+		sort = NS.get(paging.get('sortname','sort'),None)
+		order = NS.get(paging.get('ordername','asc'),'asc')
+		if not sort:
+			return sql
+		if page < 1:
+			page = 1
+		from_line = (page - 1) * rows
+		end_line = page * rows + 1
+		psql = self.pagingSQLmodel()
+		ns={
+			'from_line':from_line,
+			'end_line':end_line,
+			'rows':rows,
+			'sort':sort,
+			'order':order,
+		}
+		ac = ArgsConvert('$[',']$')
+		psql = ac.convert(psql,ns)
+		retSQL=psql % sql
+		return retSQL
+		
+	def pagingSQLmodel(self):
+		return u"""select * from (%s) A order by $[sort]$ $[order]$
+limit $[from_line]$,$[rows]$"""
+
+	def tablesSQL(self):
+		sqlcmd = """SELECT lower(TABLE_NAME) as name, lower(TABLE_COMMENT) as title FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '%s'""" % self.dbdesc.get('dbname','unknown')
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		sqlcmd="""
+ select 
+	lower(column_name) as name,
+	data_type as type,
+	case when character_maximum_length is null then  NUMERIC_PRECISION
+		else character_maximum_length end
+	as length,
+	NUMERIC_SCALE as dec1,
+	lower(is_nullable) as nullable,
+	column_comment as title,
+	lower(table_name) as table_name
+ from information_schema.columns where lower(TABLE_SCHEMA) = '%s' """ % self.dbdesc.get('dbname','unknown').lower()
+		if tablename is not None:
+			sqlcmd = sqlcmd + """and lower(table_name)='%s';""" % tablename.lower()
+		return sqlcmd
+
+	def fkSQL(self,tablename=None):
+		sqlcmd = """SELECT C.TABLE_SCHEMA            拥有者,
+           C.REFERENCED_TABLE_NAME  父表名称 ,
+           C.REFERENCED_COLUMN_NAME 父表字段 ,
+           C.TABLE_NAME             子表名称,
+           C.COLUMN_NAME            子表字段,
+           C.CONSTRAINT_NAME        约束名,
+           T.TABLE_COMMENT          表注释,
+           R.UPDATE_RULE            约束更新规则,
+           R.DELETE_RULE            约束删除规则
+      FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE C
+      JOIN INFORMATION_SCHEMA. TABLES T
+        ON T.TABLE_NAME = C.TABLE_NAME
+      JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS R
+        ON R.TABLE_NAME = C.TABLE_NAME
+       AND R.CONSTRAINT_NAME = C.CONSTRAINT_NAME
+       AND R.REFERENCED_TABLE_NAME = C.REFERENCED_TABLE_NAME
+      WHERE C.REFERENCED_TABLE_NAME IS NOT NULL ;
+		and C.TABLE_SCHEMA = '%s'
+""" % self.dbdesc.get('dbname','unknown').lower()
+		if tablename is not None:
+			sqlcmd = sqlcmd + " and C.REFERENCED_TABLE_NAME = '%s'" % tablename.lower()
+		return sqlcmd
+
+	def pkSQL(self,tablename=None):
+		sqlcmd = """SELECT
+	lower(c.table_name) as table_name,
+  lower(c.COLUMN_NAME) as field_name
+FROM
+  INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS t,
+  INFORMATION_SCHEMA.KEY_COLUMN_USAGE AS c
+WHERE
+  t.CONSTRAINT_TYPE = 'PRIMARY KEY'
+  AND t.TABLE_SCHEMA = '%s'
+  AND t.TABLE_NAME = c.TABLE_NAME
+""" % self.dbdesc.get('dbname','unknown').lower()
+		if tablename is not None:
+			sqlcmd = sqlcmd + " AND c.TABLE_NAME = '%s'" % tablename.lower()
+		return sqlcmd
+
+	def indexesSQL(self,tablename=None):
+		sqlcmd = """SELECT DISTINCT
+    lower(index_name) as index_name,
+    lower(index_type) as index_type,
+	lower(table_name) as table_name,
+	lower(column_name) as column_name
+FROM
+    information_schema.statistics
+WHERE
+    table_schema = '%s'""" % self.dbdesc.get('dbname','unknown')
+		if tablename is not None:
+			sqlcmd = sqlcmd + """	AND table_name = '%s'""" % tablename.lower()
+		return sqlcmd
diff --git a/build/lib/sqlor/oracleor.py b/build/lib/sqlor/oracleor.py
new file mode 100644
index 0000000..75ca325
--- /dev/null
+++ b/build/lib/sqlor/oracleor.py
@@ -0,0 +1,131 @@
+from .sor import SQLor
+from .ddl_template_oracle import oracle_ddl_tmpl
+class Oracleor(SQLor):
+	ddl_template = oracle_ddl_tmpl
+	db2modelTypeMapping = {
+		'char':'char',
+		'nchar':'str',
+		'varchar':'str',
+		'varchar2':'str',
+		'nvarchar2':'str',
+		'number':'long',
+		'integer':'long',
+		'binary_float':'float',
+		'binary_double':'float',
+		'float':'float',
+		'timestamp':'timestamp',
+		'timestamp with time zone':'timestamp',
+		'timestamp with local time zone':'timestamp',
+		'interval year to moth':'date',
+		'interval day to second':'timestamp',
+		'clob':'text',
+		'nclob':'text',
+		'blob':'file',
+		'bfile':'file',
+		'date':'date',
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'date',
+		'timestamp':'date',
+		'str':'varchar2',
+		'char':'char',
+		'short':'number',
+		'long':'number',
+		'float':'number',
+		'text':'nclob',
+		'file':'blob',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='cx_Oracle'
+
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return ':%s' % varname
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			return dataList
+		d = {}
+		[ d.update({i['name']:i['value']}) for i in dataList ]
+		return d
+
+	def pagingSQLmodel(self):
+		return u"""select * 
+from (
+	select page_s.*,rownum row_id 
+	from (%s) page_s 
+	order by $[sort]$ $[order]$
+	) 
+where row_id >=$[from_line]$ and row_id < $[end_line]$"""
+
+	def tablesSQL(self):
+		sqlcmd = """select 
+lower(table_name) as name,
+lower(decode(comments,null,table_name,comments)) as title
+from USER_TAB_COMMENTS where table_type = 'TABLE'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		sqlcmd="""select lower(utc.COLUMN_NAME) name
+	,utc.DATA_TYPE type
+	,utc.DATA_LENGTH length
+	,utc.data_scale dec
+	,case when utc.nullable = 'Y' then 'yes' else 'no' end nullable
+	,lower(nvl(ucc.comments,utc.COLUMN_NAME)) title
+	,lower(utc.table_name) as table_name
+	from  user_tab_cols utc left join USER_COL_COMMENTS ucc on utc.table_name = ucc.table_name and utc.COLUMN_NAME = ucc.COLUMN_NAME"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(utc.table_name) = '%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def fkSQL(self,tablename=None):
+		tablename = tablename.lower()
+		sqlcmd = """select
+ distinct(ucc.column_name) as field,rela.table_name as fk_table,rela.column_name as fk_field
+from
+ user_constraints uc,user_cons_columns ucc,
+ (
+	select t2.table_name,t2.column_name,t1.r_constraint_name 
+		from user_constraints t1,user_cons_columns t2 
+		where t1.r_constraint_name=t2.constraint_name 
+) rela
+where
+ uc.constraint_name=ucc.constraint_name
+ and uc.r_constraint_name=rela.r_constraint_name"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(uc.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def pkSQL(self,tablename=None):
+		sqlcmd = """
+select
+ lower(col.table_name) table_name,
+ lower(col.column_name) as field_name
+from
+ user_constraints con,user_cons_columns col
+where
+ con.constraint_name=col.constraint_name and con.constraint_type='P'"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(col.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+		
+	def indexesSQL(self,tablename=None):
+		sqlcmd = """select 
+  lower(a.index_name) index_name,
+  lower(a.UNIQUENESS) index_type,
+  lower(a.table_name) table_name,
+  lower(b.column_name) column_name 
+from user_indexes a, user_ind_columns b
+where a.index_name = b.index_name"""
+		if tablename is not None:
+			sqlcmd += """  and lower(a.table_name) = lower('%s')"""  % tablename.lower()
+		return sqlcmd
+		
diff --git a/build/lib/sqlor/postgresqlor.py b/build/lib/sqlor/postgresqlor.py
new file mode 100644
index 0000000..0fd3033
--- /dev/null
+++ b/build/lib/sqlor/postgresqlor.py
@@ -0,0 +1,199 @@
+from .sor import SQLor
+from .ddl_template_postgresql import postgresql_ddl_tmpl
+
+class PostgreSQLor(SQLor):
+	ddl_template = postgresql_ddl_tmpl
+	db2modelTypeMapping = {
+		'smallint':'short',
+		'integer':'long',
+		'bigint':'llong',
+		'decimal':'float',
+		'numeric':'float',
+		'real':'float',
+		'double':'float',
+		'serial':'long',
+		'bigserial':'llong',
+		'char':'char',
+		'character':'char',
+		'varchar':'str',
+		'character varying':'str',
+		'text':'text',
+		'timestamp':'timestamp',
+		'date':'date',
+		'time':'time',
+		'boolean':'char',
+		'bytea':'file'
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'date',
+		'timestamp':'timestamp',
+		'str':'varchar',
+		'char':'char',
+		'short':'smallint',
+		'long':'integer',
+		'float':'numeric',
+		'text':'text',
+		'file':'bytea',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='psycopg2'
+
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return ':%s' % varname
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			return dataList
+		d = {}
+		[ d.update({i['name']:i['value']}) for i in dataList ]
+		return d
+
+	def pagingSQLmodel(self):
+		return u"""select * 
+from (
+	select page_s.*,rownum row_id 
+	from (%s) page_s 
+	order by $[sort]$ $[order]$
+	) 
+where row_id >=$[from_line]$ and row_id < $[end_line]$"""
+
+	def tablesSQL(self):
+		"""
+			列出表名
+			SELECT   tablename   FROM   pg_tables;
+			WHERE   tablename   NOT   LIKE   'pg%'
+			AND tablename NOT LIKE 'sql_%' 
+			ORDER   BY   tablename;
+		"""
+		sqlcmd = """select 
+lower(table_name) as name,
+lower(decode(comments,null,table_name,comments)) as title
+from USER_TAB_COMMENTS where table_type = 'TABLE'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		"""SELECT col_description(a.attrelid,a.attnum) as comment,pg_type.typname as typename,a.attname as name, a.attnotnull as notnull
+FROM pg_class as c,pg_attribute as a inner join pg_type on pg_type.oid = a.atttypid
+where c.relname = 'tablename' and a.attrelid = c.oid and a.attnum>0
+		"""
+		sqlcmd="""select lower(utc.COLUMN_NAME) name
+	,utc.DATA_TYPE type
+	,utc.DATA_LENGTH length
+	,utc.data_scale dec
+	,case when utc.nullable = 'Y' then 'yes' else 'no' end nullable
+	,lower(nvl(ucc.comments,utc.COLUMN_NAME)) title
+	,lower(utc.table_name) as table_name
+	from  user_tab_cols utc left join USER_COL_COMMENTS ucc on utc.table_name = ucc.table_name and utc.COLUMN_NAME = ucc.COLUMN_NAME"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(utc.table_name) = '%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def fkSQL(self,tablename=None):
+		tablename = tablename.lower()
+		sqlcmd = """select
+ distinct(ucc.column_name) as field,rela.table_name as fk_table,rela.column_name as fk_field
+from
+ user_constraints uc,user_cons_columns ucc,
+ (
+	select t2.table_name,t2.column_name,t1.r_constraint_name 
+		from user_constraints t1,user_cons_columns t2 
+		where t1.r_constraint_name=t2.constraint_name 
+) rela
+where
+ uc.constraint_name=ucc.constraint_name
+ and uc.r_constraint_name=rela.r_constraint_name"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(uc.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def pkSQL(self,tablename=None):
+		"""
+		select pg_attribute.attname as colname,pg_type.typname as typename,pg_constraint.conname as pk_name from 
+pg_constraint  inner join pg_class 
+on pg_constraint.conrelid = pg_class.oid 
+inner join pg_attribute on pg_attribute.attrelid = pg_class.oid 
+and  pg_attribute.attnum = pg_constraint.conkey[1]
+inner join pg_type on pg_type.oid = pg_attribute.atttypid
+where pg_class.relname = 'tablename' 
+and pg_constraint.contype='p'
+		"""
+		sqlcmd = """
+select
+ lower(col.table_name) table_name,
+ lower(col.column_name) as field_name
+from
+ user_constraints con,user_cons_columns col
+where
+ con.constraint_name=col.constraint_name and con.constraint_type='P'"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(col.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+		
+	def indexesSQL(self,tablename=None):
+		"""
+SELECT
+
+A.SCHEMANAME,
+
+A.TABLENAME,
+
+A.INDEXNAME,
+
+A.TABLESPACE,
+
+A.INDEXDEF,
+
+B.AMNAME,
+
+C.INDEXRELID,
+
+C.INDNATTS,
+
+C.INDISUNIQUE,
+
+C.INDISPRIMARY,
+
+C.INDISCLUSTERED,
+
+D.DESCRIPTION
+
+FROM
+
+PG_AM B
+
+LEFT JOIN PG_CLASS F ON B.OID = F.RELAM
+
+LEFT JOIN PG_STAT_ALL_INDEXES E ON F.OID = E.INDEXRELID
+
+LEFT JOIN PG_INDEX C ON E.INDEXRELID = C.INDEXRELID
+
+LEFT OUTER JOIN PG_DESCRIPTION D ON C.INDEXRELID = D.OBJOID,
+
+PG_INDEXES A
+
+WHERE
+
+A.SCHEMANAME = E.SCHEMANAME AND A.TABLENAME = E.RELNAME AND A.INDEXNAME = E.INDEXRELNAME
+
+AND E.SCHEMANAME = 'public' AND E.RELNAME = 'table_name'
+"""
+		sqlcmd = """select 
+  lower(a.index_name) index_name,
+  lower(a.UNIQUENESS) index_type,
+  lower(a.table_name) table_name,
+  lower(b.column_name) column_name 
+from user_indexes a, user_ind_columns b
+where a.index_name = b.index_name"""
+		if tablename is not None:
+			sqlcmd += """  and lower(a.table_name) = lower('%s')"""  % tablename.lower()
+		return sqlcmd
+		
diff --git a/build/lib/sqlor/sor.py b/build/lib/sqlor/sor.py
new file mode 100644
index 0000000..b3a18b4
--- /dev/null
+++ b/build/lib/sqlor/sor.py
@@ -0,0 +1,454 @@
+import os  
+os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8'
+import sys
+import codecs
+import re
+import json
+from appPublic.myImport import myImport
+from appPublic.dictObject import DictObject,dictObjectFactory
+from appPublic.unicoding import uDict
+from patterncoding.myTemplateEngine import MyTemplateEngine
+
+
+from appPublic.argsConvert import ArgsConvert,ConditionConvert
+
+class SQLorException(Exception,object):
+	def __int__(self,**kvs):
+		supper(SQLException,self).__init__(self,**kvs)
+		self.dic = {
+			'response':'error',
+			'errtype':'SQLor',
+			'errmsg':supper(SQLException,self).message,
+		}
+		
+	def __str__(self):
+		return 'errtype:%s,errmsg=%s' % (self.dic['errtype'],self.dic['errmsg'])
+	
+def setValues(params,ns):
+	r = ns.get(params,os.getenv(params))
+	return r
+		
+def findNamedParameters(sql):
+	"""
+	return  a list of named parameters
+	"""
+	re1 = '\$\{[_a-zA-Z_][a-zA-Z_0-9]*\}'
+	params1 = re.findall(re1,sql)
+	return params1
+
+
+def uniParams(params1):
+	ret = []
+	for i in params1:
+		if i not in ret:
+			ret.append(i)
+	return ret
+
+def readsql(fn):
+	f = codecs.open(fn,'r','utf-8')
+	b = f.read()
+	f.close()
+	return b
+
+class SQLor(object):
+	def __init__(self,dbdesc=None,sqltp = '$[',sqlts = ']$',sqlvp = '${',sqlvs = '}$'):
+		self.conn = None
+		self.cur = None
+		self.async_mode = False
+		self.sqltp = sqltp
+		self.sqlts = sqlts
+		self.sqlvp = sqlvp
+		self.sqlvs = sqlvs
+		self.dbdesc = dbdesc
+		self.writer = None
+		self.convfuncs = {}
+		self.cc = ConditionConvert()
+	
+	def setCursor(self,async_mode,conn,cur):
+		self.async_mode = async_mode
+		self.conn = conn
+		self.cur = cur
+
+	def getConn(self):
+		return self.conn
+	
+	def setConvertFunction(self,typ,func):
+		self.convfuncs.update({typ:func})
+	
+	def convert(self,typ,value):
+		if self.convfuncs.get(typ,None) is not None:
+			return self.convfuncs[typ](value)
+		return value
+	@classmethod
+	def isMe(self,name):
+		return name=='sqlor'
+		
+	def pagingSQLmodel(self):
+		return u""
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '?'
+	
+	def dataConvert(self,dataList):
+		return [ i.get('value',None) for i in dataList]
+	
+	def dataList(self,k,v):
+		a = []
+		a.append({'name':k,'value':v})
+		return a
+		
+	def cursor(self):
+		return self.cur
+	
+	def recordCnt(self,sql):
+		ret = u"""select count(*) rcnt from (%s) rowcount_table""" % sql
+		return ret
+	
+	def pagingSQL(self,sql,paging,NS):
+		"""
+		default it not support paging
+		"""
+		page = int(NS.get(paging['pagename'],1))
+		rows = int(NS.get(paging['rowsname'],10))
+		sort = NS.get(paging.get('sortname','sort'),None)
+		order = NS.get(paging.get('ordername','asc'),'asc')
+		if not sort:
+			return sql
+		if page < 1:
+			page = 1
+		from_line = (page - 1) * rows + 1
+		end_line = page * rows + 1
+		psql = self.pagingSQLmodel()
+		ns={
+			'from_line':from_line,
+			'end_line':end_line,
+			'rows':rows,
+			'sort':sort,
+			'order':order,
+		}
+		ac = ArgsConvert('$[',']$')
+		psql = ac.convert(psql,ns)
+		retSQL=psql % sql
+		return retSQL
+	
+	def filterSQL(self,sql,filters,NS):
+		ac = ArgsConvert('$[',']$')
+		fbs = []
+		for f in filters:
+			vars = ac.findAllVariables(f)
+			if len(vars) > 0:
+				ignoreIt = False
+				for v in vars:
+					if not NS.get(v,False):
+						ignoreIt = True
+				if not ignoreIt:
+					f = ac.convert(f,NS)
+				else:
+					f = '1=1'
+			fbs.append(f)
+		fb = ' '.join(fbs)
+		retsql = u"""select * from (%s) filter_table where %s""" % (sql,fb)
+		return retsql
+		
+	async def runVarSQL(self,cursor,sql,NS):
+		"""
+		using a opened cursor to run a SQL statment with variable, the variable is setup in NS namespace
+		return a cursor with data
+		"""					
+		markedSQL,datas = self.maskingSQL(sql,NS)
+		datas = self.dataConvert(datas)
+		try:
+			markedSQL = markedSQL.encode('utf8')
+			if self.async_mode:
+				await cursor.execute(markedSQL,datas)
+			else:
+				cursor.execute(markedSQL,datas)
+
+		except Exception as e:
+			print( "markedSQL=",markedSQL,datas,e)
+			raise e
+		return 
+			
+	def maskingSQL(self,org_sql,NS):
+		"""
+		replace all ${X}$ format variable exception named by '__mainsql__' in sql with '%s', 
+		and return the marked sql sentent and variable list
+		sql is a sql statment with variable formated in '${X}$
+		the '__mainsql__' variable use to identify the main sql will outout data.
+		NS is the name space the variable looking for, it is a variable dictionary 
+		return (MarkedSQL,list_of_variable)
+		"""
+		sqltextAC = ArgsConvert(self.sqltp,self.sqlts)
+		sqlargsAC = ArgsConvert(self.sqlvp,self.sqlvs)
+		sql1 = sqltextAC.convert(org_sql,NS)
+		cc = ConditionConvert()
+		sql1 = cc.convert(sql1,NS)
+		vars = sqlargsAC.findAllVariables(sql1)
+		phnamespace = {}
+		[phnamespace.update({v:self.placeHolder(v)}) for v in vars]
+		m_sql = sqlargsAC.convert(sql1,phnamespace)
+		newdata = []
+		for v in vars:
+			if v != '__mainsql__':
+				value = sqlargsAC.getVarValue(v,NS,None)
+				newdata += self.dataList(v,value)
+		
+		return (m_sql,newdata)
+		
+	async def execute(self,sql,value,callback,**kwargs):
+		cur = self.cursor()
+		await self.runVarSQL(cur,sql,value)
+		if callback is not None:
+			fields = [ i[0].lower() for i in cur.description ]
+			if self.async_mode:
+				rec = await cur.fetchone()
+			else:
+				rec = cur.fetchone()
+
+			while rec is not None:
+				dic = {}
+				for i in range(len(fields)):
+					dic.update({fields[i]:rec[i]})
+				#dic = uDict(dic,coding='utf8')
+				callback(dic,**kwargs)
+				if self.async_mode:
+					rec = await cur.fetchone()
+				else:
+					rec = cur.fetchone()
+		
+
+	async def executemany(self,sql,values):
+		cur = self.cursor()
+		markedSQL,datas = self.maskingSQL(sql,{})
+		datas = [ self.dataConvert(d) for d in values ]
+		if async_mode:
+			await cur.executemany(markedSQL,datas)
+		else:
+			cur.executemany(markedSQL,datas)
+	
+	def pivotSQL(self,tablename,rowFields,columnFields,valueFields):
+		def maxValue(columnFields,valueFields,cfvalues):
+			sql = ''
+			for f in valueFields:
+				i = 0			
+				for field in columnFields:
+					for v in cfvalues[field]:
+						sql += """
+		,sum(%s_%d) %s_%d""" % (f,i,f,i)
+						i+=1
+			return sql
+		def casewhen(columnFields,valueFields,cfvalues):
+			sql = ''
+			for f in valueFields:
+				i = 0			
+				for field in columnFields:
+					for v in cfvalues[field]:
+						if v is None:
+							sql += """,case when %s is null then %s
+			else 0 end as %s_%d  -- %s
+		""" % (field,f,f,i,v)
+						else:
+							sql += """,case when trim(%s) = trim('%s') then %s
+			else 0 end as %s_%d  -- %s
+		""" % (field,v,f,f,i,v)
+						
+						i += 1
+			return sql
+	
+		cfvalues={}
+		for field in columnFields:
+			sqlstring = 'select distinct %s from %s' % (field,tablename)
+			v = []
+			self.execute(sqlstring,{},lambda x: v.append(x))
+			cfvalues[field] = [ i[field] for i in v ]
+		
+		sql ="""
+	select """ + ','.join(rowFields)
+		sql += maxValue(columnFields,valueFields,cfvalues)
+		sql += """ from 
+	(select """  + ','.join(rowFields)
+		sql += casewhen(columnFields,valueFields,cfvalues)
+		sql += """
+	from %s)
+	group by %s""" % (tablename,','.join(rowFields))
+		return sql
+		
+	async def pivot(self,desc,tablename,rowFields,columnFields,valueFields):
+		sql = self.pivotSQL(tablename,rowFields,columnFields,valueFields)
+		desc['sql_string'] = sql
+		ret = []
+		return await self.execute(sql,{},lambda x:ret.append(x))
+
+	def isSelectSql(self,sql):
+		i = 0
+		while sql[i] in "\r\n \t":
+			i = i + 1
+		return sql.lower().startswith('select ')
+
+	def getSQLfromDesc(self,desc):
+		sql = ''
+		if 'sql_file' in desc.keys():
+			sql = readsql(desc['sql_file'])
+		else:
+			sql = desc['sql_string']
+		return sql
+		
+	async def record_count(self,desc,NS):
+		cnt_desc = {}
+		cnt_desc.update(desc)
+		sql = self.getSQLfromDesc(desc)
+		if desc.get('sql_file',False):
+			del cnt_desc['sql_file']
+		cnt_desc['sql_string'] = self.recordCnt(sql)
+		class Cnt:
+			def __init__(self):
+				self.recs = []
+			def handler(self,rec):
+				self.recs.append(rec)
+
+		c = Cnt()
+		await self.sqlIterator(cnt_desc,NS,c.handler)
+		print(c.recs[0])
+		t = c.recs[0]['rcnt']
+		return t
+
+	async def pagingdata(self,desc,NS):
+		paging_desc = {}
+		paging_desc.update(desc)
+		paging_desc.update(
+			{
+				"paging":{
+					"rowsname":"rows",
+					"pagename":"page",
+					"sortname":"sort",
+					"ordername":"order"
+				}
+			})
+		if desc.get('sortfield',False):
+			NS['sort'] = desc.get('sortfield')
+		sql = self.getSQLfromDesc(desc)
+		if desc.get('sql_file',False):
+			del cnt_desc['sql_file']
+		paging_desc['sql_string'] = self.pagingSQL(sql,
+					paging_desc.get('paging'),NS)
+
+		class Cnt:
+			def __init__(self):
+				self.recs = []
+			def handler(self,rec):
+				self.recs.append(rec)
+
+		c = Cnt()
+		await self.sqlIterator(paging_desc,NS,c.handler)
+		return c.recs
+		
+	async def runSQL(self,desc,NS,callback,**kw):
+		class RecordHandler:
+			def __init__(self,ns,name):
+				self.ns = ns
+				self.name = name
+				self.ns[name] = []
+
+			def handler(self,rec):
+				obj = DictObject(rec)
+				self.ns[self.name].append(obj)
+
+		cur = self.cursor()
+		sql = self.getSQLfromDesc(desc)
+		if self.isSelectSql(sql):
+			if callback is None:
+				klass = desc.get('dataname','dummy')
+				if klass is not None:
+					rh = RecordHandler(NS,klass)
+					callback = rh.handler
+		else:
+			callback = None
+		await self.execute(sql,NS,callback)
+	
+	async def sqlExecute(self,desc,NS):
+		await self.execute(sql,NS,None)
+	
+	async def tables(self):
+		sqlstring = self.tablesSQL()
+		ret = []
+		await self.execute(sqlstring,{},lambda x:ret.append(x))
+		return ret
+	
+	def indexesSQL(self,tablename):
+		"""
+		record of {
+			index_name,
+			index_type,
+			table_name,
+			column_name
+		}
+		"""
+		return None
+		
+	async def indexes(self,tablename=None):
+		sqlstring = self.indexesSQL(tablename.lower())
+		if sqlstring is None:
+			return []
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+		
+	async def fields(self,tablename=None):
+		sqlstring = self.fieldsSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		ret = []
+		for r in recs:
+			r.update({'type':self.db2modelTypeMapping.get(r['type'].lower(),'unknown')})
+			r.update({'name':r['name'].lower()})
+			ret.append(r)
+		return ret
+	
+	async def primary(self,tablename):
+		sqlstring = self.pkSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+		
+	async def fkeys(self,tablename):
+		sqlstring = self.fkSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+	
+	async def createTable(self,tabledesc):
+		te = MyTemplateEngine([],'utf8','utf8')
+		desc = {
+			"sql_string":te.renders(self.ddl_template,tabledesc)
+		}
+		return await self.sqlExecute(desc,{})
+		
+	async def getTableDesc(self,tablename):
+		desc = {}
+		summary = [ i for i in await self.tables() if tablename.lower() == i.name ]
+		primary = [i.field_name for i in await self.primary(tablename) ]
+		summary['primary'] = primary
+		desc['summary'] = summary
+		desc['fields'] = await self.fields(tablename=tablename)
+		desc['validation'] = []
+		idx = {}
+		async for idxrec in self.indexes(tablename=tablename):
+			if idxrec.index_name != idx.get('name',None):
+				if idx != {}:
+					desc['validation'].append(idx)
+					idx = {
+						'fields':[]
+					}
+				else:
+					idx['fields'] = []
+				idx['name'] = idxrec.index_name
+				idx['oper'] = 'idx'
+			idx['fields'].append(idxrec.field_name)
+		if idx != {}:
+			desc['validation'].append(idx)		
+		return desc
+	
+		
+				
diff --git a/build/lib/sqlor/sqlite3or.py b/build/lib/sqlor/sqlite3or.py
new file mode 100644
index 0000000..adb065d
--- /dev/null
+++ b/build/lib/sqlor/sqlite3or.py
@@ -0,0 +1,100 @@
+import re
+from .sor import SQLor
+
+class SQLite3or(SQLor):
+	db2modelTypeMapping = {
+		'char':'char',
+		'nchar':'str',
+		'text':'text',
+		'ntext':'text',
+		'varchar':'str',
+		'nvarchar':'str',
+		'blob':'file',
+		'integer':'long',
+		'double':'float',
+		'date':'date',
+		'time':'time',
+		'timestamp':'timestamp',
+		'number':'long',
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'time',
+		'timestamp':'timestamp',
+		'str':'nvarchar',
+		'char':'char',
+		'short':'int',
+		'long':'integer',
+		'float':'double',
+		'text':'ntext',
+		'file':'blob',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='sqlite3'
+			
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '?'
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			d = [ i for i in dataList.values()]
+		else:
+			d = [ i['value'] for i in dataList]
+		return tuple(d)
+
+	def pagingSQLmodel(self):
+		sql = u"""select * from (%s) order by $[sort]$ $[order]$ limit $[from_line]$,$[end_line]$"""
+		return sql
+
+	def tablesSQL(self):
+		sqlcmd = u"""select name, tbl_name as title from sqlite_master where upper(type) = 'TABLE'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename):
+		sqlcmd="""PRAGMA table_info('%s')""" % tablename.lower()
+		return sqlcmd
+
+	def fields(self,tablename):
+		m = u'(\w+)\(((\d+)(,(\d+)){0,1})\){0,1}'
+		k = re.compile(m)
+		def typesplit(typ):
+			d = k.search(typ)
+			if d is None:
+				return typ,0,0
+				
+			return d.group(1),int(d.group(3) if d.group(3) is not None else 0 ),int(d.group(5) if d.group(5) is not None else 0)
+			
+		sqlstring = self.fieldsSQL(tablename)
+		recs = []
+		self.execute(sqlstring,callback=lambda x:recs.append(x))
+		for r in recs:
+			t,l,d = typesplit(r['type'])
+			r['type'] = t
+			r['length'] = int(l)
+			r['dec'] = int(d)
+			r['title'] = r['name']
+		ret = []
+		for r in recs:
+			r.update({'type':self.db2modelTypeMapping[r['type'].lower()]})
+			r.update({'name':r['name'].lower()})
+			ret.append(r)
+		return ret
+		
+	def fkSQL(self,tablename):
+		sqlcmd = ""
+		return sqlcmd
+		
+	def fkeys(self,tablename):
+		return []
+		
+	def primary(self,tablename):
+		recs = self.fields(tablename)
+		ret = [ {'field':r['name']} for r in recs if r['pk'] == 1 ]
+		return ret
+		
+	def pkSQL(self,tablename):
+		sqlcmd = ""
+		return sqlcmd
diff --git a/build/lib/sqlor/sqlor.py b/build/lib/sqlor/sqlor.py
new file mode 100644
index 0000000..cbb03fc
--- /dev/null
+++ b/build/lib/sqlor/sqlor.py
@@ -0,0 +1,393 @@
+import os  
+os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8'
+import sys
+import codecs
+import re
+import json
+from appPublic.myImport import myImport
+from appPublic.dictObject import DictObject,dictObjectFactory
+from appPublic.unicoding import uDict
+from patterncoding.myTemplateEngine import MyTemplateEngine
+
+
+from appPublic.argsConvert import ArgsConvert,ConditionConvert
+
+class SQLorException(Exception,object):
+	def __int__(self,**kvs):
+		supper(SQLException,self).__init__(self,**kvs)
+		self.dic = {
+			'response':'error',
+			'errtype':'SQLor',
+			'errmsg':supper(SQLException,self).message,
+		}
+		
+	def __str__(self):
+		return 'errtype:%s,errmsg=%s' % (self.dic['errtype'],self.dic['errmsg'])
+	
+def setValues(params,ns):
+	r = ns.get(params,os.getenv(params))
+	return r
+		
+def findNamedParameters(sql):
+	"""
+	return  a list of named parameters
+	"""
+	re1 = '\$\{[_a-zA-Z_][a-zA-Z_0-9]*\}'
+	params1 = re.findall(re1,sql)
+	return params1
+
+
+def uniParams(params1):
+	ret = []
+	for i in params1:
+		if i not in ret:
+			ret.append(i)
+	return ret
+
+def readsql(fn):
+	f = codecs.open(fn,'r','utf-8')
+	b = f.read()
+	f.close()
+	return b
+
+class SQLor(object):
+	def __init__(self,dbdesc=None,sqltp = '$[',sqlts = ']$',sqlvp = '${',sqlvs = '}$'):
+		self.conn = None
+		self.cur = None
+		self.sqltp = sqltp
+		self.sqlts = sqlts
+		self.sqlvp = sqlvp
+		self.sqlvs = sqlvs
+		self.dbdesc = dbdesc
+		self.writer = None
+		self.convfuncs = {}
+		self.cc = ConditionConvert()
+	
+	def getConn(self):
+		return self.conn
+	
+	def setConvertFunction(self,typ,func):
+		self.convfuncs.update({typ:func})
+	
+	def convert(self,typ,value):
+		if self.convfuncs.get(typ,None) is not None:
+			return self.convfuncs[typ](value)
+		return value
+	@classmethod
+	def isMe(self,name):
+		return name=='sqlor'
+		
+	def pagingSQLmodel(self):
+		return u""
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '?'
+	
+	def dataConvert(self,dataList):
+		return [ i.get('value',None) for i in dataList]
+	
+	def dataList(self,k,v):
+		a = []
+		a.append({'name':k,'value':v})
+		return a
+		
+	def cursor(self):
+		return self.cur
+	
+	def recordCnt(self,sql):
+		ret = u"""select count(*) rcnt from (%s) rowcount_table""" % sql
+		return ret
+	
+	def pagingSQL(self,sql,paging,NS):
+		"""
+		default it not support paging
+		"""
+		page = int(NS.get(paging['pagename'],1))
+		rows = int(NS.get(paging['rowsname'],10))
+		sort = NS.get(paging.get('sortname','sort'),None)
+		order = NS.get(paging.get('ordername','asc'),'asc')
+		if not sort:
+			return sql
+		if page < 1:
+			page = 1
+		from_line = (page - 1) * rows + 1
+		end_line = page * rows + 1
+		psql = self.pagingSQLmodel()
+		ns={
+			'from_line':from_line,
+			'end_line':end_line,
+			'rows':rows,
+			'sort':sort,
+			'order':order,
+		}
+		ac = ArgsConvert('$[',']$')
+		psql = ac.convert(psql,ns)
+		retSQL=psql % sql
+		return retSQL
+	
+	def filterSQL(self,sql,filters,NS):
+		ac = ArgsConvert('$[',']$')
+		fbs = []
+		for f in filters:
+			vars = ac.findAllVariables(f)
+			if len(vars) > 0:
+				ignoreIt = False
+				for v in vars:
+					if not NS.get(v,False):
+						ignoreIt = True
+				if not ignoreIt:
+					f = ac.convert(f,NS)
+				else:
+					f = '1=1'
+			fbs.append(f)
+		fb = ' '.join(fbs)
+		retsql = u"""select * from (%s) filter_table where %s""" % (sql,fb)
+		return retsql
+		
+	async def runVarSQL(self,cursor,sql,NS):
+		"""
+		using a opened cursor to run a SQL statment with variable, the variable is setup in NS namespace
+		return a cursor with data
+		"""					
+		markedSQL,datas = self.maskingSQL(sql,NS)
+		datas = self.dataConvert(datas)
+		try:
+			markedSQL = markedSQL.encode('utf8')
+			await cursor.execute(markedSQL,datas)
+		except Exception as e:
+			print( "markedSQL=",markedSQL,datas,e)
+			raise e
+		return 
+			
+	def maskingSQL(self,org_sql,NS):
+		"""
+		replace all ${X}$ format variable exception named by '__mainsql__' in sql with '%s', 
+		and return the marked sql sentent and variable list
+		sql is a sql statment with variable formated in '${X}$
+		the '__mainsql__' variable use to identify the main sql will outout data.
+		NS is the name space the variable looking for, it is a variable dictionary 
+		return (MarkedSQL,list_of_variable)
+		"""
+		sqltextAC = ArgsConvert(self.sqltp,self.sqlts)
+		sqlargsAC = ArgsConvert(self.sqlvp,self.sqlvs)
+		sql1 = sqltextAC.convert(org_sql,NS)
+		cc = ConditionConvert()
+		sql1 = cc.convert(sql1,NS)
+		vars = sqlargsAC.findAllVariables(sql1)
+		phnamespace = {}
+		[phnamespace.update({v:self.placeHolder(v)}) for v in vars]
+		m_sql = sqlargsAC.convert(sql1,phnamespace)
+		newdata = []
+		for v in vars:
+			if v != '__mainsql__':
+				value = sqlargsAC.getVarValue(v,NS,None)
+				newdata += self.dataList(v,value)
+		
+		return (m_sql,newdata)
+		
+	async def execute(self,sql,value,callback,**kwargs):
+		cur = self.cursor()
+		await self.runVarSQL(cur,sql,value)
+		if callback is not None:
+			fields = [ i[0].lower() for i in cur.description ]
+			rec = await cur.fetchone()
+			while rec is not None:
+				dic = {}
+				for i in range(len(fields)):
+					dic.update({fields[i]:rec[i]})
+				dic = uDict(dic,coding='utf8')
+				callback(dic,**kwargs)
+				rec = await cur.fetchone()
+		
+		self.close_cursor()
+
+	async def isOK(self):
+		try:
+			await self.execute('select 1 as cnt',{});
+			return True
+		except:
+			return False
+	
+	async def executemany(self,sql,values):
+		cur = self.cursor()
+		markedSQL,datas = self.maskingSQL(sql,{})
+		datas = [ self.dataConvert(d) for d in values ]
+		await cur.executemany(markedSQL,datas)
+		self.close_cursor()
+	
+	def pivotSQL(self,tablename,rowFields,columnFields,valueFields):
+		def maxValue(columnFields,valueFields,cfvalues):
+			sql = ''
+			for f in valueFields:
+				i = 0			
+				for field in columnFields:
+					for v in cfvalues[field]:
+						sql += """
+		,sum(%s_%d) %s_%d""" % (f,i,f,i)
+						i+=1
+			return sql
+		def casewhen(columnFields,valueFields,cfvalues):
+			sql = ''
+			for f in valueFields:
+				i = 0			
+				for field in columnFields:
+					for v in cfvalues[field]:
+						if v is None:
+							sql += """,case when %s is null then %s
+			else 0 end as %s_%d  -- %s
+		""" % (field,f,f,i,v)
+						else:
+							sql += """,case when trim(%s) = trim('%s') then %s
+			else 0 end as %s_%d  -- %s
+		""" % (field,v,f,f,i,v)
+						
+						i += 1
+			return sql
+	
+		cfvalues={}
+		for field in columnFields:
+			sqlstring = 'select distinct %s from %s' % (field,tablename)
+			v = []
+			self.execute(sqlstring,{},lambda x: v.append(x))
+			cfvalues[field] = [ i[field] for i in v ]
+		
+		sql ="""
+	select """ + ','.join(rowFields)
+		sql += maxValue(columnFields,valueFields,cfvalues)
+		sql += """ from 
+	(select """  + ','.join(rowFields)
+		sql += casewhen(columnFields,valueFields,cfvalues)
+		sql += """
+	from %s)
+	group by %s""" % (tablename,','.join(rowFields))
+		return sql
+		
+	async def pivot(self,desc,tablename,rowFields,columnFields,valueFields):
+		sql = self.pivotSQL(tablename,rowFields,columnFields,valueFields)
+		desc['sql_string'] = sql
+		ret = []
+		return await self.execute(sql,{},lambda x:ret.append(x))
+
+	def isSeelectSQL(self,sql):
+		i = 0
+		while sql[i] in "\r\n \t":
+			i = i + 1
+		return sql.lower().startswith('select ')
+
+	async def sqlIterator(self,desc,NS,callback,**kw):
+		class RecordHandler:
+			def __init__(self,ns,klass):
+				self.ns = ns
+				self.klass = klass
+				self.recs = []
+
+			def handler(self,rec):
+				obj = self.klass(rec)
+				self.recs.append(obj)
+
+			def finish(self):
+				self.ns[name] = self.recs
+
+		cur = self.cursor()
+		sql = ''
+		if 'sql_file' in desc.keys():
+			sql = readsql(desc['sql_file'])
+		else:
+			sql = desc['sql_string']
+		if isSelectSql(sql):
+			if callback is None:
+				klass = desc.get('classname','DictObject')
+				if klass is not None:
+					rh = RecordHandler(NS,klass)
+					callback = rh.handler
+		else:
+			callback = None
+		await self.execute(sql,NS,callback)
+	
+	async def sqlExecute(self,desc,NS):
+		await self.execute(sql,NS,None)
+	
+	async def tables(self):
+		sqlstring = self.tablesSQL()
+		ret = []
+		await self.execute(sqlstring,{},lambda x:ret.append(x))
+		return ret
+	
+	def indexesSQL(self,tablename):
+		"""
+		record of {
+			index_name,
+			index_type,
+			table_name,
+			column_name
+		}
+		"""
+		return None
+		
+	async def indexes(self,tablename=None):
+		sqlstring = self.indexesSQL(tablename.lower())
+		if sqlstring is None:
+			return []
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+		
+	async def fields(self,tablename=None):
+		sqlstring = self.fieldsSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		ret = []
+		for r in recs:
+			r.update({'type':self.db2modelTypeMapping.get(r['type'].lower(),'unknown')})
+			r.update({'name':r['name'].lower()})
+			ret.append(r)
+		return ret
+	
+	async def primary(self,tablename):
+		sqlstring = self.pkSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+		
+	async def fkeys(self,tablename):
+		sqlstring = self.fkSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+	
+	async def createTable(self,tabledesc):
+		te = MyTemplateEngine([],'utf8','utf8')
+		desc = {
+			"sql_string":te.renders(self.ddl_template,tabledesc)
+		}
+		return await self.sqlExecute(desc,{})
+		
+	async def getTableDesc(self,tablename):
+		desc = {}
+		summary = [ i for i in await self.tables() if tablename.lower() == i.name ]
+		primary = [i.field_name for i in await self.primary(tablename) ]
+		summary['primary'] = primary
+		desc['summary'] = summary
+		desc['fields'] = await self.fields(tablename=tablename)
+		desc['validation'] = []
+		idx = {}
+		async for idxrec in self.indexes(tablename=tablename):
+			if idxrec.index_name != idx.get('name',None):
+				if idx != {}:
+					desc['validation'].append(idx)
+					idx = {
+						'fields':[]
+					}
+				else:
+					idx['fields'] = []
+				idx['name'] = idxrec.index_name
+				idx['oper'] = 'idx'
+			idx['fields'].append(idxrec.field_name)
+		if idx != {}:
+			desc['validation'].append(idx)		
+		return desc
+	
+		
+				
diff --git a/dist/sqlor-0.0.1-py3.7.egg b/dist/sqlor-0.0.1-py3.7.egg
new file mode 100644
index 0000000..d0f4e5c
Binary files /dev/null and b/dist/sqlor-0.0.1-py3.7.egg differ
diff --git a/setup.py b/setup.py
new file mode 100755
index 0000000..a5ba5e5
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,42 @@
+# -*- coding: utf-8 -*-
+
+
+from distutils.core import setup
+from setuptools import setup, find_packages
+
+# usage:
+# python setup.py bdist_wininst generate a window executable file
+# python setup.py bdist_egg generate a egg file
+# Release information about eway
+
+version = "0.0.1"
+description = "sqlor"
+author = "yumoqing"
+email = "yumoqing@gmail.com"
+
+packages=find_packages()
+package_data = {}
+
+setup(
+    name="sqlor",
+    version=version,
+    
+    # uncomment the following lines if you fill them out in release.py
+    description=description,
+    author=author,
+    author_email=email,
+   
+    install_requires=[
+    ],
+    packages=packages,
+    package_data=package_data,
+    keywords = [
+    ],
+    classifiers = [
+        'Development Status :: 1 - Alpha',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python3.5',
+        'Topic :: SQL execute :: Libraries :: Python Modules',
+    ],
+	platforms= 'any'
+)
diff --git a/sqlor.egg-info/PKG-INFO b/sqlor.egg-info/PKG-INFO
new file mode 100644
index 0000000..0a89f2e
--- /dev/null
+++ b/sqlor.egg-info/PKG-INFO
@@ -0,0 +1,14 @@
+Metadata-Version: 1.1
+Name: sqlor
+Version: 0.0.1
+Summary: sqlor
+Home-page: UNKNOWN
+Author: yumoqing
+Author-email: yumoqing@gmail.com
+License: UNKNOWN
+Description: UNKNOWN
+Platform: any
+Classifier: Development Status :: 1 - Alpha
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python3.5
+Classifier: Topic :: SQL execute :: Libraries :: Python Modules
diff --git a/sqlor.egg-info/SOURCES.txt b/sqlor.egg-info/SOURCES.txt
new file mode 100644
index 0000000..6c43cc3
--- /dev/null
+++ b/sqlor.egg-info/SOURCES.txt
@@ -0,0 +1,21 @@
+README.md
+setup.py
+sqlor/__init__.py
+sqlor/aiomysqlor.py
+sqlor/aiopostgresqlor.py
+sqlor/dbpools.py
+sqlor/ddl_template_mysql.py
+sqlor/ddl_template_oracle.py
+sqlor/ddl_template_postgresql.py
+sqlor/ddl_template_sqlserver.py
+sqlor/mssqlor.py
+sqlor/mysqlor.py
+sqlor/oracleor.py
+sqlor/postgresqlor.py
+sqlor/sor.py
+sqlor/sqlite3or.py
+sqlor.egg-info/PKG-INFO
+sqlor.egg-info/SOURCES.txt
+sqlor.egg-info/dependency_links.txt
+sqlor.egg-info/top_level.txt
+test/test.py
\ No newline at end of file
diff --git a/sqlor.egg-info/dependency_links.txt b/sqlor.egg-info/dependency_links.txt
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/sqlor.egg-info/dependency_links.txt
@@ -0,0 +1 @@
+
diff --git a/sqlor.egg-info/top_level.txt b/sqlor.egg-info/top_level.txt
new file mode 100644
index 0000000..68b15ea
--- /dev/null
+++ b/sqlor.egg-info/top_level.txt
@@ -0,0 +1 @@
+sqlor
diff --git a/sqlor/.dbpools.py.swp b/sqlor/.dbpools.py.swp
new file mode 100644
index 0000000..41808d2
Binary files /dev/null and b/sqlor/.dbpools.py.swp differ
diff --git a/sqlor/__init__.py b/sqlor/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/sqlor/aiomysqlor.py b/sqlor/aiomysqlor.py
new file mode 100644
index 0000000..26c6fb7
--- /dev/null
+++ b/sqlor/aiomysqlor.py
@@ -0,0 +1,7 @@
+from .mysqlor import MySqlor
+
+class AioMysqlor(MySqlor):
+	@classmethod
+	def isMe(self,name):
+		return name=='aiomysql'
+
diff --git a/sqlor/aiopostgresqlor.py b/sqlor/aiopostgresqlor.py
new file mode 100644
index 0000000..7094ebc
--- /dev/null
+++ b/sqlor/aiopostgresqlor.py
@@ -0,0 +1,8 @@
+
+from .postgresqlor import PostgreSQLor
+class AioPostgresqlor(PostgreSQLor):
+	@classmethod
+	def isMe(self,name):
+		return name=='aiopg'
+
+
diff --git a/sqlor/dbpools.py b/sqlor/dbpools.py
new file mode 100644
index 0000000..6ee08c0
--- /dev/null
+++ b/sqlor/dbpools.py
@@ -0,0 +1,277 @@
+
+import asyncio
+from queue import Queue
+from functools import wraps 
+import codecs
+
+from appPublic.myImport import myImport
+from appPublic.dictObject import DictObject
+from appPublic.Singleton import SingletonDecorator
+from appPublic.myjson import loadf
+from appPublic.jsonConfig import getConfig
+
+from .sor import SQLor
+from .mssqlor	import MsSqlor
+from .oracleor import Oracleor
+from .sqlite3or import SQLite3or
+from .mysqlor import MySqlor
+from .aiomysqlor import AioMysqlor
+from .aiopostgresqlor import AioPostgresqlor
+
+
+def sqlorFactory(dbdesc):
+	driver = dbdesc.get('driver',dbdesc)
+	def findSubclass(name,klass):
+		for k in klass.__subclasses__():
+			if k.isMe(name):
+				return k
+			k1 = findSubclass(name,k)
+			if k1 is not None:
+				return k1
+		return None
+	k = findSubclass(driver,SQLor)
+	if k is None:
+		return SQLor(dbdesc=dbdesc)
+	return k(dbdesc=dbdesc)
+
+def sqlorFromFile(dbdef_file,coding='utf8'):
+	dbdef = loadf(dbdef_file)
+	return sqlorFactory(dbdef)
+	
+class LifeConnect:
+	__conndict = {}
+	def __init__(self,connfunc,kw,use_max=1000,async_mode=False):
+		self.connfunc = connfunc
+		self.async_mode = async_mode
+		self.use_max = use_max
+		self.kw = kw
+		self.conn = None
+	
+	def print(self):
+		print(self.use_max)
+		print(self.conn)
+
+	async def _mkconn(self):
+		if self.async_mode:
+			self.conn = await self.connfunc(**self.kw)
+		else:
+			self.conn = self.connfunc(**self.kw)
+		self.use_cnt = 0
+		self.__conndict[self.conn] = self
+
+	async def use(self):
+		if self.conn is None:
+			await self._mkconn()
+		conn = self.conn
+		if await self.testok():
+			return conn
+		del self.__conndict[conn]
+		await self._mkconn()
+
+	@classmethod
+	async def free(self,conn):
+		lc = self.__conndict[conn]
+		lc.use_cnt = lc.use_cnt + 1
+		if lc.use_cnt >= lc.use_max:
+			await lc.conn.close()
+			await lc._mkcomm()
+		return lc
+
+	async def testok(self):
+		if self.async_mode:
+			async with self.conn.cursor() as cur:
+				try:
+					await cur.execute('select 1 as cnt')
+					return True
+				except:
+					return False
+		else:
+			cur = self.conn.cursor()
+			try:
+				cur.execute('select 1 as cnt')
+				r = cur.fetchall()
+				return True
+			except:
+				return False
+			finally:
+				cur.close()
+	
+class ConnectionPool(object):
+	def __init__(self,dbdesc,loop):
+		self.dbdesc = dbdesc
+		self.async_mode = dbdesc.get('async_mode',False)
+		self.loop = loop
+		self.driver = myImport(self.dbdesc['driver'])
+		self.maxconn = dbdesc.get('maxconn',5)
+		self.maxuse = dbdesc.get('maxuse',1000)
+		self._pool = Queue(self.maxconn)
+		self._fillPool()
+		self.using = []
+		self.use_cnt = 0
+		self.max_use = 1000
+	
+	def _fillPool(self):
+		for i in range(self.maxconn):
+			lc = self.connect()
+			i = i + 1
+	
+	def connect(self):
+		lc = LifeConnect(self.driver.connect,self.dbdesc['kwargs'],
+				use_max=self.maxuse,async_mode=self.async_mode)
+		self._pool.put(lc)
+		return lc
+
+	def isEmpty(self):
+		return self._pool.empty()
+	
+	def isFull(self):
+		return self._pool.full()
+		
+	async def aquire(self):
+		lc = self._pool.get()
+		self.using.append(lc)
+		conn = await lc.use()
+		return conn
+
+	async def release(self,conn):
+		lc = await LifeConnect.free(conn)
+		self.using = [c for c in self.using if c != lc ]
+		self._pool.put(lc)
+	
+@SingletonDecorator
+class DBPools:
+	def __init__(self,databases={},max_connect=10,loop=None):
+		if loop is None:
+			loop = asyncio.get_event_loop()
+		self.loop = loop
+		self._cpools = {}
+		self.databases = databases
+	
+	def addDatabase(self,name,desc):
+		self.databases[name] = desc
+
+	async def getSqlor(self,name):
+		desc = self.databases.get(name)
+		sor = sqlorFactory(desc)
+		sor.name = name
+		a,conn,cur = await self._aquireConn(name)
+		sor.setCursor(a,conn,cur)
+		return sor
+
+	async def freeSqlor(self,sor):
+		await self._releaseConn(sor.name,sor.conn,sor.cur)
+
+	async def _aquireConn(self,dbname):
+		p = self._cpools.get(dbname)
+		if p == None:
+			p = ConnectionPool(self.databases.get(dbname),self.loop)
+			self._cpools[dbname] = p
+		conn = await p.aquire()
+		if self.isAsyncDriver(dbname):
+			cur = await conn.cursor()
+		else:
+			cur = conn.cursor()
+		return self.isAsyncDriver(dbname),conn,cur
+	
+	def isAsyncDriver(self,dbname):
+		ret = self.databases[dbname].get('async_mode',False)
+		return ret
+
+	async def _releaseConn(self,dbname,conn,cur):
+		if self.isAsyncDriver(dbname):
+			await cur.close()
+		else:
+			try:
+				cur.fetchall()
+			except:
+				pass
+			cur.close()
+		p = self._cpools.get(dbname)
+		if p == None:
+			raise Exception('database (%s) not connected'%dbname)
+		await p.release(conn)
+
+	def inSqlor(self,func):
+		@wraps(func)
+		async def wrap_func(sor,dbname,*args,**kw):
+			sor = await self.getSqlor(dbname)
+			try:
+				ret = await func(sor,dbname,*args,**kw)
+				return ret
+			except Exception as e:
+				print('error',sor)
+				raise e
+			finally:
+				await self.freeSqlor(sor)
+
+		return wrap_func
+				
+	def runSQL(self,func):
+		@wraps(func)
+		async def wrap_func(dbname,NS,callback,**kw):
+			sor = await self.getSqlor(dbname)
+			desc = func(dbname,NS,callback,**kw)
+			try:
+				ret = await sor.runSQL(desc,NS,callback,**kw)
+			except Exception as e:
+				print('error:',e)
+				raise e
+			finally:
+				await self.freeSqlor(sor)
+		return wrap_func
+
+	def runSQLPaging(self,func):
+		@wraps(func)
+		async def wrap_func(dbname,NS,**kw):
+			sor = await self.getSqlor(dbname)
+			desc = func(dbname,NS,**kw)
+			total = await sor.record_count(desc,NS)
+			recs = await sor.pagingdata(desc,NS)
+			data = {
+				"total":total,
+				"rows":recs
+			}
+			print(len(recs),'records return')
+			await self.freeSqlor(sor)
+			return data
+		return wrap_func
+
+	async def runSQLResultFields(self, dbname,NS,**kwargs):
+			sor = self.getSqlor(dbname)
+			desc = func(dbname,NS,**kw)
+			conn = await self._aquireConn(dbname)
+			async with conn.cursor() as cur:
+				sor.setCursor(conn,cur)
+				ret=await sor.sqlIterator(desc,NS)
+				ret = [ {'name':i[0],'type':i[1]} for i in cur.description ]
+				return ret
+			await self._releaseConn(dbname,conn)
+
+	async def getTables(self,dbname):
+		@self.inSqlor
+		async def _getTables(sor,dbname):
+			ret = await sor.tables()
+			return  ret
+		return await _getTables(None,dbname)
+
+	async def getTableFields(self,dbname,tblname):
+		@self.inSqlor
+		async def _getTableFields(sor,dbname,tblname):
+			ret = await sor.fields(tblname)
+			return ret
+		return await _getTableFields(None,dbname,tblname)
+
+	async def getTablePrimaryKey(self,dbname,tblname):
+		@self.inSqlor
+		async def _getTablePrimaryKey(sor,dbname,tblname):
+			ret = await sor.primary(tblname)
+			return  ret
+		return await _getTablePrimaryKey(None,dbname,tblname)
+		
+	async def getTableForignKeys(self,dbname,tblname):
+		@self.inSqlor
+		async def _getTableForignKeys(sor,dbname,tblname):
+			ret = await sor.fkeys(tblname)
+			return  ret
+		return await _getTableForignKeys(None,dbname,tblname)
+	
diff --git a/sqlor/ddl_template_mysql.py b/sqlor/ddl_template_mysql.py
new file mode 100644
index 0000000..5c9b039
--- /dev/null
+++ b/sqlor/ddl_template_mysql.py
@@ -0,0 +1,55 @@
+mysql_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+VARCHAR({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+int
+{%- elif type=='long' -%}
+bigint
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+double({{len}},{{dec}})
+{%- elif type=='date' -%}
+date
+{%- elif type=='time' -%}
+time
+{%- elif type=='datetime' -%}
+datetime
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- elif type=='text' -%}
+longtext
+{%- elif type=='bin' -%}
+longblob
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+{% macro primary() %}
+{% if len(','.join(summary[0].primary))>0 %}
+,primary key({{','.join(summary[0].primary)}})
+{% endif %}
+{% endmacro %}
+drop table {{summary[0].name}};
+CREATE TABLE {{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}} {%if field.title -%} comment '{{field.title}}'{%- endif %}{%- if not loop.last -%},{%- endif -%}
+{% endfor %}
+{{primary()}}
+)
+engine=innodb 
+default charset=utf8 
+{% if summary[0].title %}comment '{{summary[0].title}}'{% endif %}
+;
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+"""
\ No newline at end of file
diff --git a/sqlor/ddl_template_oracle.py b/sqlor/ddl_template_oracle.py
new file mode 100644
index 0000000..ff39372
--- /dev/null
+++ b/sqlor/ddl_template_oracle.py
@@ -0,0 +1,49 @@
+oracle_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+VARCHAR2({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+NUMBER
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+NUMBER({{len}},{{dec}})
+{%- elif type=='date' or type=='time' -%}
+DATE
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- elif type=='text' -%}
+CLOB
+{%- elif type=='bin' -%}
+BLOB
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+{% macro primary() %}
+{% if len(','.join(summary[0].primary))>0 %}
+,primary key({{','.join(summary[0].primary)}})
+{% endif %}
+{% endmacro %}
+drop table {{summary[0].name}};
+CREATE TABLE {{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}}{%- if not loop.last -%},{%- endif -%}
+{% endfor %}
+{{primary()}}
+);
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+COMMENT ON TABLE {{summary[0].name}} IS '{{summary[0].title}}';
+{% for field in fields %}
+COMMENT ON COLUMN {{summary[0].name}}.{{field.name}} is '{{field.title}}';
+{% endfor %}
+"""
\ No newline at end of file
diff --git a/sqlor/ddl_template_postgresql.py b/sqlor/ddl_template_postgresql.py
new file mode 100644
index 0000000..6b17592
--- /dev/null
+++ b/sqlor/ddl_template_postgresql.py
@@ -0,0 +1,45 @@
+postgresql_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+VARCHAR({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+INTEGER
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+NUMERIC({{len}},{{dec}})
+{%- elif type=='date' -%}
+DATE
+{%- elif type=='time' -%}
+TIME
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+{% macro primary() %}
+primary key({{','.join(summary[0].primary)}})
+{% endmacro %}
+DROP TABLE IF EXISTS {{summary[0].name}};
+CREATE TABLE {{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}},
+{% endfor %}
+{{primary()}}
+);
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+COMMENT ON TABLE {{summary[0].name}} IS '{{summary[0].title.decode('utf8')}}';
+{% for field in fields %}
+COMMENT ON COLUMN {{summary[0].name}}.{{field.name}} is '{{field.title.decode('utf8')}}';
+{% endfor %}
+"""
\ No newline at end of file
diff --git a/sqlor/ddl_template_sqlserver.py b/sqlor/ddl_template_sqlserver.py
new file mode 100644
index 0000000..49e73c7
--- /dev/null
+++ b/sqlor/ddl_template_sqlserver.py
@@ -0,0 +1,51 @@
+sqlserver_ddl_tmpl = """{% macro typeStr(type,len,dec) %}
+{%- if type=='str' -%}
+NVARCHAR({{len}})
+{%- elif type=='char' -%}
+CHAR({{len}})
+{%- elif type=='long' or type=='int' or type=='short' -%}
+NUMERIC
+{%- elif type=='float' or type=='double' or type=='ddouble' -%}
+numeric({{len}},{{dec}})
+{%- elif type=='date' or type=='time' -%}
+DATE
+{%- elif type=='timestamp' -%}
+TIMESTAMP
+{%- elif type=='text' -%}
+NVARCHAR(MAX)
+{%- elif type=='bin' -%}
+IMAGE
+{%- else -%}
+{{type}}
+{%- endif %}
+{%- endmacro %}
+{% macro nullStr(nullable) %}
+{%- if nullable=='no' -%}
+NOT NULL
+{%- endif -%}
+{% endmacro %}
+
+{% macro primary() %}
+{% if len(','.join(summary[0].primary))>0 %}
+,primary key({{','.join(summary[0].primary)}})
+{% endif %}
+{% endmacro %}
+
+drop table dbo.{{summary[0].name}};
+CREATE TABLE dbo.{{summary[0].name}}
+(
+{% for field in fields %}
+  {{field.name}} {{typeStr(field.type,field.length,field.dec)}} {{nullStr(field.nullable)}}{%- if not loop.last -%},{%- endif -%}
+{% endfor %}
+{{primary()}}
+)
+{% for v in validation %}
+{% if v.oper=='idx' %}
+CREATE {% if v.value.idxtype=='unique' %}UNIQUE{% endif %} INDEX {{summary[0].name}}_{{v.name}} ON {{summary[0].name}}({{",".join(v.value.fields)}});
+{% endif %}
+{%- endfor -%}
+EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{{summary[0].title}}' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'{{summary[0].name}}'
+{% for field in fields %}
+EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'{{field.title}}' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'{{summary[0].name}}', @level2type=N'COLUMN',@level2name=N'{{field.name}}'
+{% endfor %}
+"""
\ No newline at end of file
diff --git a/sqlor/mssqlor.py b/sqlor/mssqlor.py
new file mode 100644
index 0000000..b527a1a
--- /dev/null
+++ b/sqlor/mssqlor.py
@@ -0,0 +1,175 @@
+# -*- coding:utf8 -*-
+from .sor import SQLor
+from .ddl_template_sqlserver import sqlserver_ddl_tmpl
+
+class MsSqlor(SQLor):
+	ddl_template = sqlserver_ddl_tmpl
+	db2modelTypeMapping = {
+		'bit':'short',
+		'tinyint':'short',
+		'date':'date',
+		'bigint':'long',
+		'smallint':'short',
+		'int':'long',
+		'decimal':'float',
+		'numeric':'float',
+		'smallmoney':'float',
+		'money':'float',
+		'real':'float',
+		'float':'float',
+		'datetime':'date',
+		'timestamp':'timestamp',
+		'uniqueidentifier':'timestamp',
+		'char':'char',
+		'varchar':'str',
+		'text':'text',
+		'nchar':'str',
+		'nvarchar':'str',
+		'ntext':'text',
+		'binary':'str',
+		'varbinary':'str',
+		'image':'file',
+	}
+	model2dbTypemapping = {
+		'date':'datetime',
+		'time':'date',
+		'timestamp':'timestamp',
+		'str':'nvarchar',
+		'char':'char',
+		'short':'int',
+		'long':'numeric',
+		'float':'numeric',
+		'text':'ntext',
+		'file':'image',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='pymssql'
+			
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '%s'
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			d = [ i for i in dataList.values()]
+		else:
+			d = [ i['value'] for i in dataList]
+		return tuple(d)
+
+	def pagingSQLmodel(self):
+		return u"""select *
+from (
+	select row_number() over(order by $[sort]$ $[order]$) as _row_id,page_s.* 
+	from (%s) page_s
+	) A
+where _row_id >= $[from_line]$ and _row_id < $[end_line]$"""
+
+	def tablesSQL(self):
+		sqlcmd = u"""select 
+	lower(d.name) as name,
+	lower(cast(Isnull(f.VALUE,d.name) as nvarchar )) title
+	from sysobjects d  
+		left join sys.extended_properties f on d.id = f.major_id and f.minor_id = 0
+	where d.xtype = 'U'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		sqlcmd=u"""SELECT name = lower(a.name)
+		   ,type = b.name
+		   ,length = Columnproperty(a.id,a.name,'PRECISION')
+		   ,dec = Isnull(Columnproperty(a.id,a.name,'Scale'),null)
+		   ,nullable = CASE 
+					WHEN a.isnullable = 1 THEN 'yes'
+					ELSE 'no'
+				  END
+		   ,title = lower(cast(Isnull(g.[value],a.name) as nvarchar) )
+		   ,table_name = lower(d.name)
+	FROM     syscolumns a
+			 LEFT JOIN systypes b
+			   ON a.xusertype = b.xusertype
+			 INNER JOIN sysobjects d
+			   ON (a.id = d.id)
+				  AND (d.xtype = 'U')
+				  AND (d.name <> 'dtproperties') 
+			  INNER JOIN  sys.all_objects c
+				ON d.id=c.object_id 
+					AND  schema_name(schema_id)='dbo'
+			 LEFT JOIN sys.extended_properties g
+			   ON (a.id = g.major_id)
+				  AND (a.colid = g.minor_id)
+			 LEFT JOIN sys.extended_properties f
+			   ON (d.id = f.major_id)
+				  AND (f.minor_id = 0)"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(d.name)='%s'
+	ORDER BY a.id,a.colorder""" % tablename.lower()
+		else:
+			sqlcmd = sqlcmd + """ ORDER BY a.id,a.colorder"""
+		return sqlcmd
+
+	def fkSQL(self,tablename=None):
+		sqlcmd = u"""select
+  MainCol.name AS field          -- [主表列名]
+  ,oSub.name  AS  fk_table       -- [子表名称],
+  ,SubCol.name AS fk_field       -- [子表列名],
+from
+  sys.foreign_keys fk  
+    JOIN sys.all_objects oSub  
+        ON (fk.parent_object_id = oSub.object_id)
+    JOIN sys.all_objects oMain 
+        ON (fk.referenced_object_id = oMain.object_id)
+    JOIN sys.foreign_key_columns fkCols 
+        ON (fk.object_id = fkCols.constraint_object_id)
+    JOIN sys.columns SubCol 
+        ON (oSub.object_id = SubCol.object_id  
+            AND fkCols.parent_column_id = SubCol.column_id)
+    JOIN sys.columns MainCol 
+        ON (oMain.object_id = MainCol.object_id  
+            AND fkCols.referenced_column_id = MainCol.column_id)"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """	where lower(oMain.name) = '%s'""" % tablename.lower()
+
+		return sqlcmd
+
+	def pkSQL(self,tablename=None):
+		sqlcmd = u"""select 
+	lower(a.table_name) as table_name,
+	lower(b.column_name) as field_name
+ from information_schema.table_constraints a
+ inner join information_schema.constraint_column_usage b
+ on a.constraint_name = b.constraint_name
+ where a.constraint_type = 'PRIMARY KEY'"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(a.table_name) = '%s'""" % tablename.lower()
+		return sqlcmd
+
+	def indexesSQL(self,tablename=None):
+		sqlcmd = """SELECT
+index_name=lower(IDX.Name),
+index_type=case when KC.type_desc is null then 'primary' WHEN IDX.is_unique=1 THEN 'unique' ELSE 'ununique' END,
+table_name=lower(O.Name),
+column_name=lower(C.Name)
+FROM sys.indexes IDX 
+INNER JOIN sys.index_columns IDXC
+ON IDX.[object_id]=IDXC.[object_id]
+AND IDX.index_id=IDXC.index_id
+LEFT JOIN sys.key_constraints KC
+ON IDX.[object_id]=KC.[parent_object_id]
+AND IDX.index_id=KC.unique_index_id
+INNER JOIN sys.objects O
+ON O.[object_id]=IDX.[object_id]
+INNER JOIN sys.columns C
+ON O.[object_id]=C.[object_id]
+AND O.type='U'
+AND O.is_ms_shipped=0
+AND IDXC.Column_id=C.Column_id"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(O.name)='%s'""" % tablename.lower()
+		return sqlcmd
diff --git a/sqlor/mysqlor.py b/sqlor/mysqlor.py
new file mode 100644
index 0000000..e5df373
--- /dev/null
+++ b/sqlor/mysqlor.py
@@ -0,0 +1,179 @@
+# -*- coding:utf8 -*-
+from mysql import connector
+from appPublic.argsConvert import ArgsConvert,ConditionConvert
+
+from .sor import SQLor
+from .ddl_template_mysql import mysql_ddl_tmpl
+class MySqlor(SQLor):
+	ddl_template = mysql_ddl_tmpl
+	db2modelTypeMapping = {
+		'tinyint':'short',
+		'smallint':'short',
+		'mediumint':'long',
+		'int':'long',
+		'bigint':'long',
+		'decimal':'float',
+		'double':'float',
+		'float':'float',
+		'char':'char',
+		'varchar':'str',
+		'tinyblob':'text',
+		'tinytext':'text',
+		'mediumblob':'text',
+		'mediumtext':'text',
+		'blob':'text',
+		'text':'text',
+		'mediumblob':'text',
+		'mediumtext':'text',
+		'longblob':'bin',
+		'longtext':'text',
+		'barbinary':'text',
+		'binary':'text',
+		'date':'date',
+		'time':'time',
+		'datetime':'datetime',
+		'timestamp':'datestamp',
+		'year':'short',
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'date',
+		'timestamp':'timestamp',
+		'str':'varchar',
+		'char':'char',
+		'short':'int',
+		'long':'bigint',
+		'float':'double',
+		'text':'longtext',
+		'bin':'longblob',
+		'file':'longblob',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='mysql.connector'
+	
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def _opendb(self):
+		self.conn = connector.connect(**self.dbdesc['kwargs'])
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '%s'
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			d = [ i for i in dataList.values()]
+		else:
+			d = [ i['value'] for i in dataList]
+		return tuple(d)
+
+	def pagingSQL(self,sql,paging,NS):
+		"""
+		default it not support paging
+		"""
+		page = int(NS.get(paging['pagename'],1))
+		rows = int(NS.get(paging['rowsname'],10))
+		sort = NS.get(paging.get('sortname','sort'),None)
+		order = NS.get(paging.get('ordername','asc'),'asc')
+		if not sort:
+			return sql
+		if page < 1:
+			page = 1
+		from_line = (page - 1) * rows
+		end_line = page * rows + 1
+		psql = self.pagingSQLmodel()
+		ns={
+			'from_line':from_line,
+			'end_line':end_line,
+			'rows':rows,
+			'sort':sort,
+			'order':order,
+		}
+		ac = ArgsConvert('$[',']$')
+		psql = ac.convert(psql,ns)
+		retSQL=psql % sql
+		return retSQL
+		
+	def pagingSQLmodel(self):
+		return u"""select * from (%s) A order by $[sort]$ $[order]$
+limit $[from_line]$,$[rows]$"""
+
+	def tablesSQL(self):
+		sqlcmd = """SELECT lower(TABLE_NAME) as name, lower(TABLE_COMMENT) as title FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = '%s'""" % self.dbdesc.get('dbname','unknown')
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		sqlcmd="""
+ select 
+	lower(column_name) as name,
+	data_type as type,
+	case when character_maximum_length is null then  NUMERIC_PRECISION
+		else character_maximum_length end
+	as length,
+	NUMERIC_SCALE as dec1,
+	lower(is_nullable) as nullable,
+	column_comment as title,
+	lower(table_name) as table_name
+ from information_schema.columns where lower(TABLE_SCHEMA) = '%s' """ % self.dbdesc.get('dbname','unknown').lower()
+		if tablename is not None:
+			sqlcmd = sqlcmd + """and lower(table_name)='%s';""" % tablename.lower()
+		return sqlcmd
+
+	def fkSQL(self,tablename=None):
+		sqlcmd = """SELECT C.TABLE_SCHEMA            拥有者,
+           C.REFERENCED_TABLE_NAME  父表名称 ,
+           C.REFERENCED_COLUMN_NAME 父表字段 ,
+           C.TABLE_NAME             子表名称,
+           C.COLUMN_NAME            子表字段,
+           C.CONSTRAINT_NAME        约束名,
+           T.TABLE_COMMENT          表注释,
+           R.UPDATE_RULE            约束更新规则,
+           R.DELETE_RULE            约束删除规则
+      FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE C
+      JOIN INFORMATION_SCHEMA. TABLES T
+        ON T.TABLE_NAME = C.TABLE_NAME
+      JOIN INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS R
+        ON R.TABLE_NAME = C.TABLE_NAME
+       AND R.CONSTRAINT_NAME = C.CONSTRAINT_NAME
+       AND R.REFERENCED_TABLE_NAME = C.REFERENCED_TABLE_NAME
+      WHERE C.REFERENCED_TABLE_NAME IS NOT NULL ;
+		and C.TABLE_SCHEMA = '%s'
+""" % self.dbdesc.get('dbname','unknown').lower()
+		if tablename is not None:
+			sqlcmd = sqlcmd + " and C.REFERENCED_TABLE_NAME = '%s'" % tablename.lower()
+		return sqlcmd
+
+	def pkSQL(self,tablename=None):
+		sqlcmd = """SELECT
+	lower(c.table_name) as table_name,
+  lower(c.COLUMN_NAME) as field_name
+FROM
+  INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS t,
+  INFORMATION_SCHEMA.KEY_COLUMN_USAGE AS c
+WHERE
+  t.CONSTRAINT_TYPE = 'PRIMARY KEY'
+  AND t.TABLE_SCHEMA = '%s'
+  AND t.TABLE_NAME = c.TABLE_NAME
+""" % self.dbdesc.get('dbname','unknown').lower()
+		if tablename is not None:
+			sqlcmd = sqlcmd + " AND c.TABLE_NAME = '%s'" % tablename.lower()
+		return sqlcmd
+
+	def indexesSQL(self,tablename=None):
+		sqlcmd = """SELECT DISTINCT
+    lower(index_name) as index_name,
+    lower(index_type) as index_type,
+	lower(table_name) as table_name,
+	lower(column_name) as column_name
+FROM
+    information_schema.statistics
+WHERE
+    table_schema = '%s'""" % self.dbdesc.get('dbname','unknown')
+		if tablename is not None:
+			sqlcmd = sqlcmd + """	AND table_name = '%s'""" % tablename.lower()
+		return sqlcmd
diff --git a/sqlor/oracleor.py b/sqlor/oracleor.py
new file mode 100644
index 0000000..75ca325
--- /dev/null
+++ b/sqlor/oracleor.py
@@ -0,0 +1,131 @@
+from .sor import SQLor
+from .ddl_template_oracle import oracle_ddl_tmpl
+class Oracleor(SQLor):
+	ddl_template = oracle_ddl_tmpl
+	db2modelTypeMapping = {
+		'char':'char',
+		'nchar':'str',
+		'varchar':'str',
+		'varchar2':'str',
+		'nvarchar2':'str',
+		'number':'long',
+		'integer':'long',
+		'binary_float':'float',
+		'binary_double':'float',
+		'float':'float',
+		'timestamp':'timestamp',
+		'timestamp with time zone':'timestamp',
+		'timestamp with local time zone':'timestamp',
+		'interval year to moth':'date',
+		'interval day to second':'timestamp',
+		'clob':'text',
+		'nclob':'text',
+		'blob':'file',
+		'bfile':'file',
+		'date':'date',
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'date',
+		'timestamp':'date',
+		'str':'varchar2',
+		'char':'char',
+		'short':'number',
+		'long':'number',
+		'float':'number',
+		'text':'nclob',
+		'file':'blob',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='cx_Oracle'
+
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return ':%s' % varname
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			return dataList
+		d = {}
+		[ d.update({i['name']:i['value']}) for i in dataList ]
+		return d
+
+	def pagingSQLmodel(self):
+		return u"""select * 
+from (
+	select page_s.*,rownum row_id 
+	from (%s) page_s 
+	order by $[sort]$ $[order]$
+	) 
+where row_id >=$[from_line]$ and row_id < $[end_line]$"""
+
+	def tablesSQL(self):
+		sqlcmd = """select 
+lower(table_name) as name,
+lower(decode(comments,null,table_name,comments)) as title
+from USER_TAB_COMMENTS where table_type = 'TABLE'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		sqlcmd="""select lower(utc.COLUMN_NAME) name
+	,utc.DATA_TYPE type
+	,utc.DATA_LENGTH length
+	,utc.data_scale dec
+	,case when utc.nullable = 'Y' then 'yes' else 'no' end nullable
+	,lower(nvl(ucc.comments,utc.COLUMN_NAME)) title
+	,lower(utc.table_name) as table_name
+	from  user_tab_cols utc left join USER_COL_COMMENTS ucc on utc.table_name = ucc.table_name and utc.COLUMN_NAME = ucc.COLUMN_NAME"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(utc.table_name) = '%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def fkSQL(self,tablename=None):
+		tablename = tablename.lower()
+		sqlcmd = """select
+ distinct(ucc.column_name) as field,rela.table_name as fk_table,rela.column_name as fk_field
+from
+ user_constraints uc,user_cons_columns ucc,
+ (
+	select t2.table_name,t2.column_name,t1.r_constraint_name 
+		from user_constraints t1,user_cons_columns t2 
+		where t1.r_constraint_name=t2.constraint_name 
+) rela
+where
+ uc.constraint_name=ucc.constraint_name
+ and uc.r_constraint_name=rela.r_constraint_name"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(uc.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def pkSQL(self,tablename=None):
+		sqlcmd = """
+select
+ lower(col.table_name) table_name,
+ lower(col.column_name) as field_name
+from
+ user_constraints con,user_cons_columns col
+where
+ con.constraint_name=col.constraint_name and con.constraint_type='P'"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(col.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+		
+	def indexesSQL(self,tablename=None):
+		sqlcmd = """select 
+  lower(a.index_name) index_name,
+  lower(a.UNIQUENESS) index_type,
+  lower(a.table_name) table_name,
+  lower(b.column_name) column_name 
+from user_indexes a, user_ind_columns b
+where a.index_name = b.index_name"""
+		if tablename is not None:
+			sqlcmd += """  and lower(a.table_name) = lower('%s')"""  % tablename.lower()
+		return sqlcmd
+		
diff --git a/sqlor/postgresqlor.py b/sqlor/postgresqlor.py
new file mode 100644
index 0000000..0fd3033
--- /dev/null
+++ b/sqlor/postgresqlor.py
@@ -0,0 +1,199 @@
+from .sor import SQLor
+from .ddl_template_postgresql import postgresql_ddl_tmpl
+
+class PostgreSQLor(SQLor):
+	ddl_template = postgresql_ddl_tmpl
+	db2modelTypeMapping = {
+		'smallint':'short',
+		'integer':'long',
+		'bigint':'llong',
+		'decimal':'float',
+		'numeric':'float',
+		'real':'float',
+		'double':'float',
+		'serial':'long',
+		'bigserial':'llong',
+		'char':'char',
+		'character':'char',
+		'varchar':'str',
+		'character varying':'str',
+		'text':'text',
+		'timestamp':'timestamp',
+		'date':'date',
+		'time':'time',
+		'boolean':'char',
+		'bytea':'file'
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'date',
+		'timestamp':'timestamp',
+		'str':'varchar',
+		'char':'char',
+		'short':'smallint',
+		'long':'integer',
+		'float':'numeric',
+		'text':'text',
+		'file':'bytea',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='psycopg2'
+
+	def grammar(self):
+		return {
+			'select':select_stmt,
+		}
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return ':%s' % varname
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			return dataList
+		d = {}
+		[ d.update({i['name']:i['value']}) for i in dataList ]
+		return d
+
+	def pagingSQLmodel(self):
+		return u"""select * 
+from (
+	select page_s.*,rownum row_id 
+	from (%s) page_s 
+	order by $[sort]$ $[order]$
+	) 
+where row_id >=$[from_line]$ and row_id < $[end_line]$"""
+
+	def tablesSQL(self):
+		"""
+			列出表名
+			SELECT   tablename   FROM   pg_tables;
+			WHERE   tablename   NOT   LIKE   'pg%'
+			AND tablename NOT LIKE 'sql_%' 
+			ORDER   BY   tablename;
+		"""
+		sqlcmd = """select 
+lower(table_name) as name,
+lower(decode(comments,null,table_name,comments)) as title
+from USER_TAB_COMMENTS where table_type = 'TABLE'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename=None):
+		"""SELECT col_description(a.attrelid,a.attnum) as comment,pg_type.typname as typename,a.attname as name, a.attnotnull as notnull
+FROM pg_class as c,pg_attribute as a inner join pg_type on pg_type.oid = a.atttypid
+where c.relname = 'tablename' and a.attrelid = c.oid and a.attnum>0
+		"""
+		sqlcmd="""select lower(utc.COLUMN_NAME) name
+	,utc.DATA_TYPE type
+	,utc.DATA_LENGTH length
+	,utc.data_scale dec
+	,case when utc.nullable = 'Y' then 'yes' else 'no' end nullable
+	,lower(nvl(ucc.comments,utc.COLUMN_NAME)) title
+	,lower(utc.table_name) as table_name
+	from  user_tab_cols utc left join USER_COL_COMMENTS ucc on utc.table_name = ucc.table_name and utc.COLUMN_NAME = ucc.COLUMN_NAME"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ where lower(utc.table_name) = '%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def fkSQL(self,tablename=None):
+		tablename = tablename.lower()
+		sqlcmd = """select
+ distinct(ucc.column_name) as field,rela.table_name as fk_table,rela.column_name as fk_field
+from
+ user_constraints uc,user_cons_columns ucc,
+ (
+	select t2.table_name,t2.column_name,t1.r_constraint_name 
+		from user_constraints t1,user_cons_columns t2 
+		where t1.r_constraint_name=t2.constraint_name 
+) rela
+where
+ uc.constraint_name=ucc.constraint_name
+ and uc.r_constraint_name=rela.r_constraint_name"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(uc.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+	
+	def pkSQL(self,tablename=None):
+		"""
+		select pg_attribute.attname as colname,pg_type.typname as typename,pg_constraint.conname as pk_name from 
+pg_constraint  inner join pg_class 
+on pg_constraint.conrelid = pg_class.oid 
+inner join pg_attribute on pg_attribute.attrelid = pg_class.oid 
+and  pg_attribute.attnum = pg_constraint.conkey[1]
+inner join pg_type on pg_type.oid = pg_attribute.atttypid
+where pg_class.relname = 'tablename' 
+and pg_constraint.contype='p'
+		"""
+		sqlcmd = """
+select
+ lower(col.table_name) table_name,
+ lower(col.column_name) as field_name
+from
+ user_constraints con,user_cons_columns col
+where
+ con.constraint_name=col.constraint_name and con.constraint_type='P'"""
+		if tablename is not None:
+			sqlcmd = sqlcmd + """ and lower(col.table_name)='%s'""" % tablename.lower()
+		return sqlcmd
+		
+	def indexesSQL(self,tablename=None):
+		"""
+SELECT
+
+A.SCHEMANAME,
+
+A.TABLENAME,
+
+A.INDEXNAME,
+
+A.TABLESPACE,
+
+A.INDEXDEF,
+
+B.AMNAME,
+
+C.INDEXRELID,
+
+C.INDNATTS,
+
+C.INDISUNIQUE,
+
+C.INDISPRIMARY,
+
+C.INDISCLUSTERED,
+
+D.DESCRIPTION
+
+FROM
+
+PG_AM B
+
+LEFT JOIN PG_CLASS F ON B.OID = F.RELAM
+
+LEFT JOIN PG_STAT_ALL_INDEXES E ON F.OID = E.INDEXRELID
+
+LEFT JOIN PG_INDEX C ON E.INDEXRELID = C.INDEXRELID
+
+LEFT OUTER JOIN PG_DESCRIPTION D ON C.INDEXRELID = D.OBJOID,
+
+PG_INDEXES A
+
+WHERE
+
+A.SCHEMANAME = E.SCHEMANAME AND A.TABLENAME = E.RELNAME AND A.INDEXNAME = E.INDEXRELNAME
+
+AND E.SCHEMANAME = 'public' AND E.RELNAME = 'table_name'
+"""
+		sqlcmd = """select 
+  lower(a.index_name) index_name,
+  lower(a.UNIQUENESS) index_type,
+  lower(a.table_name) table_name,
+  lower(b.column_name) column_name 
+from user_indexes a, user_ind_columns b
+where a.index_name = b.index_name"""
+		if tablename is not None:
+			sqlcmd += """  and lower(a.table_name) = lower('%s')"""  % tablename.lower()
+		return sqlcmd
+		
diff --git a/sqlor/sor.py b/sqlor/sor.py
new file mode 100644
index 0000000..b3a18b4
--- /dev/null
+++ b/sqlor/sor.py
@@ -0,0 +1,454 @@
+import os  
+os.environ['NLS_LANG'] = 'SIMPLIFIED CHINESE_CHINA.UTF8'
+import sys
+import codecs
+import re
+import json
+from appPublic.myImport import myImport
+from appPublic.dictObject import DictObject,dictObjectFactory
+from appPublic.unicoding import uDict
+from patterncoding.myTemplateEngine import MyTemplateEngine
+
+
+from appPublic.argsConvert import ArgsConvert,ConditionConvert
+
+class SQLorException(Exception,object):
+	def __int__(self,**kvs):
+		supper(SQLException,self).__init__(self,**kvs)
+		self.dic = {
+			'response':'error',
+			'errtype':'SQLor',
+			'errmsg':supper(SQLException,self).message,
+		}
+		
+	def __str__(self):
+		return 'errtype:%s,errmsg=%s' % (self.dic['errtype'],self.dic['errmsg'])
+	
+def setValues(params,ns):
+	r = ns.get(params,os.getenv(params))
+	return r
+		
+def findNamedParameters(sql):
+	"""
+	return  a list of named parameters
+	"""
+	re1 = '\$\{[_a-zA-Z_][a-zA-Z_0-9]*\}'
+	params1 = re.findall(re1,sql)
+	return params1
+
+
+def uniParams(params1):
+	ret = []
+	for i in params1:
+		if i not in ret:
+			ret.append(i)
+	return ret
+
+def readsql(fn):
+	f = codecs.open(fn,'r','utf-8')
+	b = f.read()
+	f.close()
+	return b
+
+class SQLor(object):
+	def __init__(self,dbdesc=None,sqltp = '$[',sqlts = ']$',sqlvp = '${',sqlvs = '}$'):
+		self.conn = None
+		self.cur = None
+		self.async_mode = False
+		self.sqltp = sqltp
+		self.sqlts = sqlts
+		self.sqlvp = sqlvp
+		self.sqlvs = sqlvs
+		self.dbdesc = dbdesc
+		self.writer = None
+		self.convfuncs = {}
+		self.cc = ConditionConvert()
+	
+	def setCursor(self,async_mode,conn,cur):
+		self.async_mode = async_mode
+		self.conn = conn
+		self.cur = cur
+
+	def getConn(self):
+		return self.conn
+	
+	def setConvertFunction(self,typ,func):
+		self.convfuncs.update({typ:func})
+	
+	def convert(self,typ,value):
+		if self.convfuncs.get(typ,None) is not None:
+			return self.convfuncs[typ](value)
+		return value
+	@classmethod
+	def isMe(self,name):
+		return name=='sqlor'
+		
+	def pagingSQLmodel(self):
+		return u""
+		
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '?'
+	
+	def dataConvert(self,dataList):
+		return [ i.get('value',None) for i in dataList]
+	
+	def dataList(self,k,v):
+		a = []
+		a.append({'name':k,'value':v})
+		return a
+		
+	def cursor(self):
+		return self.cur
+	
+	def recordCnt(self,sql):
+		ret = u"""select count(*) rcnt from (%s) rowcount_table""" % sql
+		return ret
+	
+	def pagingSQL(self,sql,paging,NS):
+		"""
+		default it not support paging
+		"""
+		page = int(NS.get(paging['pagename'],1))
+		rows = int(NS.get(paging['rowsname'],10))
+		sort = NS.get(paging.get('sortname','sort'),None)
+		order = NS.get(paging.get('ordername','asc'),'asc')
+		if not sort:
+			return sql
+		if page < 1:
+			page = 1
+		from_line = (page - 1) * rows + 1
+		end_line = page * rows + 1
+		psql = self.pagingSQLmodel()
+		ns={
+			'from_line':from_line,
+			'end_line':end_line,
+			'rows':rows,
+			'sort':sort,
+			'order':order,
+		}
+		ac = ArgsConvert('$[',']$')
+		psql = ac.convert(psql,ns)
+		retSQL=psql % sql
+		return retSQL
+	
+	def filterSQL(self,sql,filters,NS):
+		ac = ArgsConvert('$[',']$')
+		fbs = []
+		for f in filters:
+			vars = ac.findAllVariables(f)
+			if len(vars) > 0:
+				ignoreIt = False
+				for v in vars:
+					if not NS.get(v,False):
+						ignoreIt = True
+				if not ignoreIt:
+					f = ac.convert(f,NS)
+				else:
+					f = '1=1'
+			fbs.append(f)
+		fb = ' '.join(fbs)
+		retsql = u"""select * from (%s) filter_table where %s""" % (sql,fb)
+		return retsql
+		
+	async def runVarSQL(self,cursor,sql,NS):
+		"""
+		using a opened cursor to run a SQL statment with variable, the variable is setup in NS namespace
+		return a cursor with data
+		"""					
+		markedSQL,datas = self.maskingSQL(sql,NS)
+		datas = self.dataConvert(datas)
+		try:
+			markedSQL = markedSQL.encode('utf8')
+			if self.async_mode:
+				await cursor.execute(markedSQL,datas)
+			else:
+				cursor.execute(markedSQL,datas)
+
+		except Exception as e:
+			print( "markedSQL=",markedSQL,datas,e)
+			raise e
+		return 
+			
+	def maskingSQL(self,org_sql,NS):
+		"""
+		replace all ${X}$ format variable exception named by '__mainsql__' in sql with '%s', 
+		and return the marked sql sentent and variable list
+		sql is a sql statment with variable formated in '${X}$
+		the '__mainsql__' variable use to identify the main sql will outout data.
+		NS is the name space the variable looking for, it is a variable dictionary 
+		return (MarkedSQL,list_of_variable)
+		"""
+		sqltextAC = ArgsConvert(self.sqltp,self.sqlts)
+		sqlargsAC = ArgsConvert(self.sqlvp,self.sqlvs)
+		sql1 = sqltextAC.convert(org_sql,NS)
+		cc = ConditionConvert()
+		sql1 = cc.convert(sql1,NS)
+		vars = sqlargsAC.findAllVariables(sql1)
+		phnamespace = {}
+		[phnamespace.update({v:self.placeHolder(v)}) for v in vars]
+		m_sql = sqlargsAC.convert(sql1,phnamespace)
+		newdata = []
+		for v in vars:
+			if v != '__mainsql__':
+				value = sqlargsAC.getVarValue(v,NS,None)
+				newdata += self.dataList(v,value)
+		
+		return (m_sql,newdata)
+		
+	async def execute(self,sql,value,callback,**kwargs):
+		cur = self.cursor()
+		await self.runVarSQL(cur,sql,value)
+		if callback is not None:
+			fields = [ i[0].lower() for i in cur.description ]
+			if self.async_mode:
+				rec = await cur.fetchone()
+			else:
+				rec = cur.fetchone()
+
+			while rec is not None:
+				dic = {}
+				for i in range(len(fields)):
+					dic.update({fields[i]:rec[i]})
+				#dic = uDict(dic,coding='utf8')
+				callback(dic,**kwargs)
+				if self.async_mode:
+					rec = await cur.fetchone()
+				else:
+					rec = cur.fetchone()
+		
+
+	async def executemany(self,sql,values):
+		cur = self.cursor()
+		markedSQL,datas = self.maskingSQL(sql,{})
+		datas = [ self.dataConvert(d) for d in values ]
+		if async_mode:
+			await cur.executemany(markedSQL,datas)
+		else:
+			cur.executemany(markedSQL,datas)
+	
+	def pivotSQL(self,tablename,rowFields,columnFields,valueFields):
+		def maxValue(columnFields,valueFields,cfvalues):
+			sql = ''
+			for f in valueFields:
+				i = 0			
+				for field in columnFields:
+					for v in cfvalues[field]:
+						sql += """
+		,sum(%s_%d) %s_%d""" % (f,i,f,i)
+						i+=1
+			return sql
+		def casewhen(columnFields,valueFields,cfvalues):
+			sql = ''
+			for f in valueFields:
+				i = 0			
+				for field in columnFields:
+					for v in cfvalues[field]:
+						if v is None:
+							sql += """,case when %s is null then %s
+			else 0 end as %s_%d  -- %s
+		""" % (field,f,f,i,v)
+						else:
+							sql += """,case when trim(%s) = trim('%s') then %s
+			else 0 end as %s_%d  -- %s
+		""" % (field,v,f,f,i,v)
+						
+						i += 1
+			return sql
+	
+		cfvalues={}
+		for field in columnFields:
+			sqlstring = 'select distinct %s from %s' % (field,tablename)
+			v = []
+			self.execute(sqlstring,{},lambda x: v.append(x))
+			cfvalues[field] = [ i[field] for i in v ]
+		
+		sql ="""
+	select """ + ','.join(rowFields)
+		sql += maxValue(columnFields,valueFields,cfvalues)
+		sql += """ from 
+	(select """  + ','.join(rowFields)
+		sql += casewhen(columnFields,valueFields,cfvalues)
+		sql += """
+	from %s)
+	group by %s""" % (tablename,','.join(rowFields))
+		return sql
+		
+	async def pivot(self,desc,tablename,rowFields,columnFields,valueFields):
+		sql = self.pivotSQL(tablename,rowFields,columnFields,valueFields)
+		desc['sql_string'] = sql
+		ret = []
+		return await self.execute(sql,{},lambda x:ret.append(x))
+
+	def isSelectSql(self,sql):
+		i = 0
+		while sql[i] in "\r\n \t":
+			i = i + 1
+		return sql.lower().startswith('select ')
+
+	def getSQLfromDesc(self,desc):
+		sql = ''
+		if 'sql_file' in desc.keys():
+			sql = readsql(desc['sql_file'])
+		else:
+			sql = desc['sql_string']
+		return sql
+		
+	async def record_count(self,desc,NS):
+		cnt_desc = {}
+		cnt_desc.update(desc)
+		sql = self.getSQLfromDesc(desc)
+		if desc.get('sql_file',False):
+			del cnt_desc['sql_file']
+		cnt_desc['sql_string'] = self.recordCnt(sql)
+		class Cnt:
+			def __init__(self):
+				self.recs = []
+			def handler(self,rec):
+				self.recs.append(rec)
+
+		c = Cnt()
+		await self.sqlIterator(cnt_desc,NS,c.handler)
+		print(c.recs[0])
+		t = c.recs[0]['rcnt']
+		return t
+
+	async def pagingdata(self,desc,NS):
+		paging_desc = {}
+		paging_desc.update(desc)
+		paging_desc.update(
+			{
+				"paging":{
+					"rowsname":"rows",
+					"pagename":"page",
+					"sortname":"sort",
+					"ordername":"order"
+				}
+			})
+		if desc.get('sortfield',False):
+			NS['sort'] = desc.get('sortfield')
+		sql = self.getSQLfromDesc(desc)
+		if desc.get('sql_file',False):
+			del cnt_desc['sql_file']
+		paging_desc['sql_string'] = self.pagingSQL(sql,
+					paging_desc.get('paging'),NS)
+
+		class Cnt:
+			def __init__(self):
+				self.recs = []
+			def handler(self,rec):
+				self.recs.append(rec)
+
+		c = Cnt()
+		await self.sqlIterator(paging_desc,NS,c.handler)
+		return c.recs
+		
+	async def runSQL(self,desc,NS,callback,**kw):
+		class RecordHandler:
+			def __init__(self,ns,name):
+				self.ns = ns
+				self.name = name
+				self.ns[name] = []
+
+			def handler(self,rec):
+				obj = DictObject(rec)
+				self.ns[self.name].append(obj)
+
+		cur = self.cursor()
+		sql = self.getSQLfromDesc(desc)
+		if self.isSelectSql(sql):
+			if callback is None:
+				klass = desc.get('dataname','dummy')
+				if klass is not None:
+					rh = RecordHandler(NS,klass)
+					callback = rh.handler
+		else:
+			callback = None
+		await self.execute(sql,NS,callback)
+	
+	async def sqlExecute(self,desc,NS):
+		await self.execute(sql,NS,None)
+	
+	async def tables(self):
+		sqlstring = self.tablesSQL()
+		ret = []
+		await self.execute(sqlstring,{},lambda x:ret.append(x))
+		return ret
+	
+	def indexesSQL(self,tablename):
+		"""
+		record of {
+			index_name,
+			index_type,
+			table_name,
+			column_name
+		}
+		"""
+		return None
+		
+	async def indexes(self,tablename=None):
+		sqlstring = self.indexesSQL(tablename.lower())
+		if sqlstring is None:
+			return []
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+		
+	async def fields(self,tablename=None):
+		sqlstring = self.fieldsSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		ret = []
+		for r in recs:
+			r.update({'type':self.db2modelTypeMapping.get(r['type'].lower(),'unknown')})
+			r.update({'name':r['name'].lower()})
+			ret.append(r)
+		return ret
+	
+	async def primary(self,tablename):
+		sqlstring = self.pkSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+		
+	async def fkeys(self,tablename):
+		sqlstring = self.fkSQL(tablename)
+		recs = []
+		await self.execute(sqlstring,{},lambda x:recs.append(x))
+		return recs
+	
+	async def createTable(self,tabledesc):
+		te = MyTemplateEngine([],'utf8','utf8')
+		desc = {
+			"sql_string":te.renders(self.ddl_template,tabledesc)
+		}
+		return await self.sqlExecute(desc,{})
+		
+	async def getTableDesc(self,tablename):
+		desc = {}
+		summary = [ i for i in await self.tables() if tablename.lower() == i.name ]
+		primary = [i.field_name for i in await self.primary(tablename) ]
+		summary['primary'] = primary
+		desc['summary'] = summary
+		desc['fields'] = await self.fields(tablename=tablename)
+		desc['validation'] = []
+		idx = {}
+		async for idxrec in self.indexes(tablename=tablename):
+			if idxrec.index_name != idx.get('name',None):
+				if idx != {}:
+					desc['validation'].append(idx)
+					idx = {
+						'fields':[]
+					}
+				else:
+					idx['fields'] = []
+				idx['name'] = idxrec.index_name
+				idx['oper'] = 'idx'
+			idx['fields'].append(idxrec.field_name)
+		if idx != {}:
+			desc['validation'].append(idx)		
+		return desc
+	
+		
+				
diff --git a/sqlor/sqlite3or.py b/sqlor/sqlite3or.py
new file mode 100644
index 0000000..adb065d
--- /dev/null
+++ b/sqlor/sqlite3or.py
@@ -0,0 +1,100 @@
+import re
+from .sor import SQLor
+
+class SQLite3or(SQLor):
+	db2modelTypeMapping = {
+		'char':'char',
+		'nchar':'str',
+		'text':'text',
+		'ntext':'text',
+		'varchar':'str',
+		'nvarchar':'str',
+		'blob':'file',
+		'integer':'long',
+		'double':'float',
+		'date':'date',
+		'time':'time',
+		'timestamp':'timestamp',
+		'number':'long',
+	}
+	model2dbTypemapping = {
+		'date':'date',
+		'time':'time',
+		'timestamp':'timestamp',
+		'str':'nvarchar',
+		'char':'char',
+		'short':'int',
+		'long':'integer',
+		'float':'double',
+		'text':'ntext',
+		'file':'blob',
+	}
+	@classmethod
+	def isMe(self,name):
+		return name=='sqlite3'
+			
+	def placeHolder(self,varname):
+		if varname=='__mainsql__' :
+			return ''
+		return '?'
+	
+	def dataConvert(self,dataList):
+		if type(dataList) == type({}):
+			d = [ i for i in dataList.values()]
+		else:
+			d = [ i['value'] for i in dataList]
+		return tuple(d)
+
+	def pagingSQLmodel(self):
+		sql = u"""select * from (%s) order by $[sort]$ $[order]$ limit $[from_line]$,$[end_line]$"""
+		return sql
+
+	def tablesSQL(self):
+		sqlcmd = u"""select name, tbl_name as title from sqlite_master where upper(type) = 'TABLE'"""
+		return sqlcmd
+	
+	def fieldsSQL(self,tablename):
+		sqlcmd="""PRAGMA table_info('%s')""" % tablename.lower()
+		return sqlcmd
+
+	def fields(self,tablename):
+		m = u'(\w+)\(((\d+)(,(\d+)){0,1})\){0,1}'
+		k = re.compile(m)
+		def typesplit(typ):
+			d = k.search(typ)
+			if d is None:
+				return typ,0,0
+				
+			return d.group(1),int(d.group(3) if d.group(3) is not None else 0 ),int(d.group(5) if d.group(5) is not None else 0)
+			
+		sqlstring = self.fieldsSQL(tablename)
+		recs = []
+		self.execute(sqlstring,callback=lambda x:recs.append(x))
+		for r in recs:
+			t,l,d = typesplit(r['type'])
+			r['type'] = t
+			r['length'] = int(l)
+			r['dec'] = int(d)
+			r['title'] = r['name']
+		ret = []
+		for r in recs:
+			r.update({'type':self.db2modelTypeMapping[r['type'].lower()]})
+			r.update({'name':r['name'].lower()})
+			ret.append(r)
+		return ret
+		
+	def fkSQL(self,tablename):
+		sqlcmd = ""
+		return sqlcmd
+		
+	def fkeys(self,tablename):
+		return []
+		
+	def primary(self,tablename):
+		recs = self.fields(tablename)
+		ret = [ {'field':r['name']} for r in recs if r['pk'] == 1 ]
+		return ret
+		
+	def pkSQL(self,tablename):
+		sqlcmd = ""
+		return sqlcmd
diff --git a/test/primary.py b/test/primary.py
new file mode 100644
index 0000000..5c3c890
--- /dev/null
+++ b/test/primary.py
@@ -0,0 +1,47 @@
+import asyncio
+
+from sqlor.dbpools  import DBPools
+
+dbs={
+        "aiocfae":{
+                "driver":"aiomysql",
+		"async_mode":True,
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        },
+        "cfae":{
+                "driver":"mysql.connector",
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        }
+}
+
+loop = asyncio.get_event_loop()
+pool = DBPools(dbs,loop=loop)
+async def printTables(dbname):
+	r = await pool.getTables(dbname)
+	print('tables=',r)
+
+async def printFields(dbname,tablename):
+	r = await pool.getTableFields(dbname,tablename)
+	print(dbname,tablename,'fields=',r)
+
+async def printPrimary(dbname,tablename):
+	r = await pool.getTablePrimaryKey(dbname,tablename)
+	print(dbname,tablename,'primary key=',r)
+
+loop.run_until_complete(printTables('cfae'))
+loop.run_until_complete(printFields('cfae','product'))
+loop.run_until_complete(printPrimary('cfae','product'))
diff --git a/test/t1.py b/test/t1.py
new file mode 100644
index 0000000..15de10d
--- /dev/null
+++ b/test/t1.py
@@ -0,0 +1,44 @@
+import asyncio
+
+from sqlor.dbpools  import DBPools
+
+dbs={
+        "aiocfae":{
+                "driver":"aiomysql",
+		"async_mode":True,
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        },
+        "cfae":{
+                "driver":"mysql.connector",
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        }
+}
+
+loop = asyncio.get_event_loop()
+pool = DBPools(dbs,loop=loop)
+
+async def paging():
+	@pool.runSQLPaging
+	def sql(db,ns):
+		return {
+		"sql_string":"select * from product",
+	}
+	x  = await sql('aiocfae',{'rows':5,'page':1,"sort":"productid"})
+	print('x=',x['total'],len(x['rows']))
+
+
+loop.run_until_complete(paging())
diff --git a/test/t2.py b/test/t2.py
new file mode 100644
index 0000000..9a45d0a
--- /dev/null
+++ b/test/t2.py
@@ -0,0 +1,42 @@
+import asyncio
+
+from sqlor.dbpools  import DBPools
+
+dbs={
+        "aiocfae":{
+                "driver":"aiomysql",
+		"async_mode":True,
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        },
+        "cfae":{
+                "driver":"mysql.connector",
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        }
+}
+
+loop = asyncio.get_event_loop()
+pool = DBPools(dbs,loop=loop)
+
+async def testfunc():
+	@pool.runSQL
+	def sql(db,ns,callback):
+		return {
+		"sql_string":"select * from product",
+	}
+	x  = await sql('cfae',{},print)
+
+loop.run_until_complete(testfunc())
diff --git a/test/test.py b/test/test.py
new file mode 100644
index 0000000..9a45d0a
--- /dev/null
+++ b/test/test.py
@@ -0,0 +1,42 @@
+import asyncio
+
+from sqlor.dbpools  import DBPools
+
+dbs={
+        "aiocfae":{
+                "driver":"aiomysql",
+		"async_mode":True,
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        },
+        "cfae":{
+                "driver":"mysql.connector",
+                "coding":"utf8",
+                "dbname":"cfae",
+                "kwargs":{
+                        "user":"test",
+                        "db":"cfae",
+                        "password":"test123",
+                        "host":"localhost"
+                }
+        }
+}
+
+loop = asyncio.get_event_loop()
+pool = DBPools(dbs,loop=loop)
+
+async def testfunc():
+	@pool.runSQL
+	def sql(db,ns,callback):
+		return {
+		"sql_string":"select * from product",
+	}
+	x  = await sql('cfae',{},print)
+
+loop.run_until_complete(testfunc())