标签:group nbsp 图片 bsp mic cal select *** where
1.SQL语句由六部分组成
2.Group By 和HAVING
Select ***
From ***
Where ***
Group BY ***
Having ***
Order BY ***
(1)Group By
(2)HAVING
(3)查询平均成绩大于六十分的同学和平均成绩
标签:group nbsp 图片 bsp mic cal select *** where
原文地址:https://www.cnblogs.com/xzmxddx/p/10356016.html