sq练习

Posted 2020-10-26 haley0125

1、

select date,id,sale, (select sum(sale) from sale where date <= T.date and id = T.id)  sum from sale T order by id;

2、

select name from sale group by name having min(score) > 80;（最小值都大于80）

select distinct name from sale where name not in (select name from sale where score < 80);

3、