Python中操作MySQL入门实例

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')

    cur.execute(exsql)

    conn.commit()

    return 'insert success'

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')

    cur.execute(exsql)

    conn.commit()

    return 'delete success'


print insertdb()

print insertdb()

selectdb()

print deletedb()

四、关闭连接

cur.close()

conn.close()

注意顺序。