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在分组检索中,要去掉不满足条件的分组,应当()。

单选题
2021-09-01 23:06
A、使用WHERE子句
B、使用HAVING子句
C、先使用WHERE子句,再HAVING子句
D、先使用HAVING子句,再WHERE子句
查看答案

正确答案
B

试题解析

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