高分求助:帮帮写一个sql语句

2025-03-24 20:21:33
推荐回答(2个)
回答1:

select myDataTime,(case when loginTime where = 0 then loginTime )as 0,(case when loginTime where =1 then loginTime ) as 1 ,(case...).....
from tablename
case循环就可以了,我记得好像是这样写的。。。。

回答2:

select count(*) as i,logintime from 表名 where ...group by i,logintime