数据库中AS的使用意义

aS在数据库中后面可以起到一个别名的作用，这样可以方便给开发的人员的理解

select
     username as 账号 ,
     password as 密码,
     mingzi as 名字,
    zhengjianhao as 证件号,
    dianhua as 电话,
    zhuceriqi as 注册日期,
    zhuangtai as 状态,
    quanxian as 权限,
    shengyutianshu as 剩余天数
     from user

 

引用作者：https://www.cnblogs.com/zhaotiancheng/p/6692553.html