T-SQL HAVING

HAVING子句，是对合计函数进行条件过滤。就以这个http://www.cnblogs.com/insus/articles/1968148.html准备的数据为例。

查询出这些天来，每天记录和大于等于140次的日期。

View Code

SELECT   [ DT ]  , SUM ( [ Hits ] )  AS   [ TotalHits ]   FROM   [ dbo ] . [ RecordHits ]
GROUP   BY   [ dt ]
HAVING   SUM ( [ Hits ] )  >=   140

 

执行结果：