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")
posted @ 2012-02-06 16:45  qianlifeng  阅读(79192)  评论(14编辑  收藏  举报