1、count
select count(*) from student;
2、max
select max(age) from student;
3、min
select sname,min(age) from student;
4、sum
select sum(age) from student;
5、avg
select avg(age) from student;
posted on 2023-03-22 13:42 默玖 阅读(43) 评论(0) 编辑 收藏 举报
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