python 通过pymssql连接Sqlserver数据库

 

#coding:utf-8
import pymssql
import pdb

class MSSQL:
        def __init__(self,host,user,pwd,db):
                
                self.host=host
                self.user=user
                self.pwd=pwd
                self.db=db
        
        def __GetConnect(self):
                
                
                if not self.db:
                        raise(NameError,"没有设置数据库信息")
                try:
                        self.con= pymssql.connect(host='localhost',user= self.user,password=self.pwd,database =self.db,charset='utf8')
                        cur=self.con.cursor()
                except Exception,e:
                        print Exception,":",e
                
                if not cur:
                        print "连接数据库失败"
                else:
                        return cur
                                
                        
        def ExecQuery(self,sql):
                cur=self.__GetConnect()
                cur.execute(sql)
                resList=cur.fetchall()
                self.con.close()
                return resList
                
        def ExecNonQuery(self,sql):
                cur=self.__GetConnect()
                cur.execute(sql)
                self.con.commit()
                self.con.close()
                
def main ():
        print "enter the main"
        ms = MSSQL(host=r"localhost",user =r"sa",pwd=r"Syn19920518",db=r"AdventrueWorksLT2008bak")
        resList=ms.ExecQuery("select * from Table_StaffInfo ")
        for i in resList:
                       print i
        raw_input("result...")

        
if __name__=='__main__':
        print "enter the main"
        main(
                
                        
                

 花了好长时间，仍然还差一点调好。主要重现了一下别人的代码http://www.cnblogs.com/qianlifeng/archive/2012/02/06/2340367.html

未解决的问题：

1.输出后显示的u“x1..”等utf-8格式

2.ExecNonQuery方法未测试

得到的经验：

1.sql 当时半天没连上，报错

Traceback (most recent call last):
  File "C:/Users/smc8236/Desktop/connSqlserver1", line 2, in <module>
    con=pymssql.connect(host='10.116.5.176',user='sa',password='123456',database='MASTER_CNBJ')
  File "pymssql.pyx", line 549, in pymssql.connect (pymssql.c:7112)
OperationalError: (20017, '\xc4DB-Lib error message 20017, severity 9:\nUnexpected EOF from the server\nDB-Lib error message 20002, severity 9:\nAdaptive Server connection failed\n')

原因charset=‘utf-8’错误，应该改成‘utf8’

另外开启Sql远程链接，但可能没什么影响

链接如下：http://jingyan.baidu.com/article/6c67b1d6ca06f02787bb1ed1.html

2.虽然中文问题没有解决，但对编码有大概了解，Unicode属于通用类型，gbk,utf-8属于分支。用的时候先decode成unicode再encode成gbk,utf-8

这个文章比较清楚

http://python.jobbole.com/81244/

这个以后再做参考

http://python.jobbole.com/81244/

科普类文章

http://www.cnblogs.com/gavin-num1/p/5170247.html