Rumah >pembangunan bahagian belakang >tutorial php >mysql 查询怎么写
我想查询 相同vUserCode里的最新时间,
我自己写的sql 语句,select * from table group by vUserCode order by cDate desc
select * from (select * from table order by cDate desc) t group by vUserCode
select max(cDate) from table group by vUserCode