python的MySQLdb库基本使用介绍

MySQLdb库

import MySQLdb

简介

提供mysql的基本操作（包括建表，读取表数据，插入数据到表）

数据库操作基本步骤

#!/usr/bin/python
# -*- coding: UTF-8 -*-

import MySQLdb

if __name__ == "__main__":
    # 打开数据库连接
    db = MySQLdb.connect("localhost", "root", "root", "iquota", charset='utf8')

    # 使用cursor()方法获取操作游标
    cursor = db.cursor()

    # 查看表
    sql_cmd="select * from app;"

    cursor.execute(sql_cmd)
    data = cursor.fetchone()
    data_all = cursor.fetchall()

    # 关闭数据库连接
    db.close()

    # 读取一行
    print data
    # 读取全部内容
    print data_all

输出结果

(10L, u'5c26736821d24de48942d982b1c69000', u'qa-stress', u'qa app for stress test', u'zhangsan')
((11L, u'5c26736821d24de48942d982b1c69000', u'qa-stress', u'qa app for stress test', u'lisi'), (12L, u'37ea7ce186404c2ea3a1fb4079d58c15', u'qa-stress-test', u'qa app for stress test', u'zhangsan'), (13L, u'37ea7ce186404c2ea3a1fb4079d58c15', u'qa-stress-test', u'qa app for stress test', u'lisi'), (14L, u'283182bf5ffe4398932d72e9a6d239cc', u'app1', u'add_request', u'lisi'), (21L, u'394c56cde2cb4434a01cff43defcc0a6', u'liurong07Test', u'add_request', u'lisi'))

简单demo

#!/usr/bin/python
# -*- coding: utf-8 -*-

import MySQLdb


DB_HOST = "120.92.81.22"
DB_PORT = 55219
DB_USER = "admin"
DB_PASSWORD = "LIUrong123@"


def cyc_execute(cmd, num):

    # 打开数据库
    db = MySQLdb.connect(host=DB_HOST, port=DB_PORT, user=DB_USER, passwd=DB_PASSWORD, charset='utf8')

    # 获取游标
    cursor = db.cursor()


    # 循环执行sql
    for i in range(0, num):

        # 执行sql
        cursor.execute(cmd)

        # 获取数据
        data = cursor.fetchone()

        # 打印结果
        print "Database version : %s " % data

    # 关闭数据库
    db.close()



if __name__ == "__main__":

    sql_cmd = "select user();"
    num = 10

    cyc_execute(sql_cmd, num)