AS significance of the use of the database

AS appreciated later alias database can play a role, which can facilitate the development of personnel to

 

the SELECT 
     username AS account, 
     password AS password, 
     mingzi AS name, 
    zhengjianhao AS identification number, 
    dianhua AS Telephone, 
    zhuceriqi AS registration date, 
    zhuangtai AS state, 
    quanxian AS privileges, 
    shengyutianshu number of days remaining AS 
     from the User

 

 

 

 

 

 

Quote: https://www.cnblogs.com/zhaotiancheng/p/6692553.html