python下的MySQLdb使用

# -*- coding: utf-8 -*-     

#mysqldb    

import time, MySQLdb    

   

#鏈接    

conn=MySQLdb.connect(host="localhost",user="root",passwd="root",db="test",charset="utf8")  

cursor = conn.cursor()    元組的返回值

conn.cursor(cursorclass=MySQLdb.cursors.DictCursor) 字典的返回值

#刪除表

sql = "drop table if exists user"

cursor.execute(sql)

#建立

sql = "create table if not exists user(name varchar(128) primary key, created int(10))"

cursor.execute(sql)

#寫入    

sql = "insert into user(name,created) values(%s,%s)"   

param = ("aaa",int(time.time()))    

n = cursor.execute(sql,param)    

print 'insert',n    

   

#寫入多行    

sql = "insert into user(name,created) values(%s,%s)"   

param = (("bbb",int(time.time())), ("ccc",33), ("ddd",44) )

n = cursor.executemany(sql,param)    

print 'insertmany',n    

#更新    

sql = "update user set name=%s where name='aaa'"   

param = ("zzz")    

n = cursor.execute(sql,param)    

print 'update',n    

   

#查詢    

n = cursor.execute("select * from user")    

for row in cursor.fetchall():    

    print row

    for r in row:    

        print r    

   

#刪除    

sql = "delete from user where name=%s"   

param =("bbb")    

n = cursor.execute(sql,param)    

print 'delete',n    

#查詢    

n = cursor.execute("select * from user")    

print cursor.fetchall()    

cursor.close()    

   

#提交    

conn.commit()

#關閉    

conn.close()