查询大于平均值的数据SQL

Sales表：

OrderID	Region	Total
1	A	100.00
2	C	80.00
3	A	130.00
4	B	90.00
5	B	100.00
6	C	120.00
7	A	90.00
8	C	90.00
9	B	80.00

 

查询销售额大于本地区平均水平的记录。

 

查询SQL：

SELECT

     a.*,

FROM

     sales a

INNER JOIN (

     SELECT

          Region,

          AVG(Total) AS Total

     FROM

          sales

     GROUP BY

          Region

) b ON a.Region = b.Region

WHERE

     a.Total >= b.Total