阅读:1064 输入:2016-07-16

第一种方法:

select (@i:=@i+1) as i,table_name.* from table_name,(select @i:=0) as it

第二种方法:

set @rownum=0;
select @rownum:=@rownum+1 as rownum, t.username from auth_user t limit 1,5;