python连接sqlserver乱码的解决方法



vi /etc/freetds/freetds.conf
代码如下:

[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
代码如下:

#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：
代码如下:

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

python 使用pymssql连接sql server数据库
代码如下:

#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")