python 使用pymssql连接sql server数据库

#coding=utf-8 
#!/usr/bin/env python
#-------------------------------------------------------------------------------
# Name: pymssqlTest.py
# Purpose: 测试 pymssql库，该库到这里下载：http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql
#
# Author: scott
#
# Created: 04/02/2012
#-------------------------------------------------------------------------------

import pymssql


class MSSQL :
     "" "
    对pymssql的简单封装
    pymssql库，该库到这里下载：http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql
    使用该库时，需要在Sql Server Configuration Manager里面将TCP/IP协议开启

    用法：

    " ""

     def __init__( self,host,user,pwd,db) :
         self.host = host
         self.user = user
         self.pwd = pwd
         self.db = db

     def __GetConnect( self) :
         "" "
        得到连接信息
        返回: conn.cursor()
        " ""
         if not self.db :
             raise( NameError, "没有设置数据库信息")
         self.conn = pymssql.connect(host = self.host,user = self.user,password = self.pwd,database = self.db,charset = "utf8")
        cur = self.conn.cursor()
         if not cur :
             raise( NameError, "连接数据库失败")
         else :
             return cur

     def ExecQuery( self,sql) :
         "" "
        执行查询语句
        返回的是一个包含tuple的list，list的元素是记录行，tuple的元素是每行记录的字段

        调用示例：
                ms = MSSQL(host="localhost ",user="sa ",pwd=" 123456 ",db="PythonWeiboStatistics ")
                resList = ms.ExecQuery("SELECT id,NickName FROM WeiBoUser ")
                for (id,NickName) in resList:
                    print str(id),NickName
        " ""
        cur = self.__GetConnect()
        cur.execute(sql)
        resList = cur.fetchall()

         #查询完毕后必须关闭连接
         self.conn.close()
         return resList

     def ExecNonQuery( self,sql) :
         "" "
        执行非查询语句

        调用示例：
            cur = self.__GetConnect()
            cur.execute(sql)
            self.conn.commit()
            self.conn.close()
        " ""
        cur = self.__GetConnect()
        cur.execute(sql)
         self.conn.commit()
         self.conn.close()

def main() :
## ms = MSSQL(host="localhost",user="sa",pwd="123456",db="PythonWeiboStatistics")
## #返回的是一个包含tuple的list，list的元素是记录行，tuple的元素是每行记录的字段
## ms.ExecNonQuery("insert into WeiBoUser values('2','3')")

    ms = MSSQL(host = "localhost",user = "sa",pwd = "123456",db = "PythonWeiboStatistics")
    resList = ms.ExecQuery( "SELECT id,weibocontent FROM WeiBo")
     for ( id,weibocontent) in resList :
         print str(weibocontent).decode( "utf8")

if __name__ == '__main__' :
    main()

 

 

注意事项：

     使用pymssql进行中文操作时候可能会出现中文乱码，我解决的方案是：

• 文件头加上 #coding=utf8
• sql语句中有中文的时候进行encode
     insertSql = "insert into WeiBo([UserId],[WeiBoContent],[PublishDate]) values(1,'测试','2012/2/1')".encode( "utf8")
•   连接的时候加入charset设置信息
      pymssql.connect(host = self.host,user = self.user,password = self.pwd,database = self.db,charset = "utf8")