python连接sql server乱码的解决方法

vi /etc/freetds/freetds.conf

[global]
# tds protocol version
tds version = 8.0
client charset = utf-8
# a typical microsoft server
[server55]
host = 192.168.1.55
port = 1433
tds version = 8.0
vi /etc/odbc.ini
[dsn55]
description=my dsn
driver=tds
database=qq99
servername=server55

tsql -s server55 -u qq -p 123456 -d qq99

#coding=utf-8
#!/usr/bin/python
import pyodbc
cnxn = pyodbc.connect("dsn=dsn55;uid=qq;pwd=123456")
cursor = cnxn.cursor()
cursor.execute('select * from orders where username=?','qq')
a=cursor.fetchall()
print 'pyodbc',a

关闭连接：

csr.close()
del csr
conn.close()

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")