python学习笔记十一:操作mysql
一、安装MySQL-python
# yum install -y MySQL-python
二、打开数据库连接
#!/usr/bin/python import MySQLdb conn = MySQLdb.connect(user=‘root‘,passwd=‘admin‘,host=‘127.0.0.1‘) conn.select_db(‘test‘) cur = conn.cursor()
三、操作数据库
def insertdb(): sql = ‘insert into test(name,`sort`) values ("%s","%s")‘ exsql = sql % (‘hello‘,‘python‘) return cur.execute(exsql) def selectdb(): sql = ‘select `name` from test where `sort` = "%s"‘ exsql = sql % (‘python‘) count = cur.execute(exsql) for row in cur: print row print ‘cursor move to top:‘ cur.scroll(0,‘absolute‘) row = cur.fetchone() while row is not None: print row row = cur.fetchone() print ‘cursor move to top:‘ cur.scroll(0,‘absolute‘) many = cur.fetchmany(count) print many def deletedb(): sql = ‘delete from test where `sort` = "%s"‘ exsql = sql % (‘python‘) return cur.execute(exsql) print insertdb() print insertdb() selectdb() print deletedb()
四、关闭连接
cur.close()
conn.close()
注意顺序。
郑重声明:本站内容如果来自互联网及其他传播媒体,其版权均属原媒体及文章作者所有。转载目的在于传递更多信息及用于网络分享,并不代表本站赞同其观点和对其真实性负责,也不构成任何其他建议。