sql server 查詢表A中某字段出現3次以上重復的記錄


1.查詢表A中ID出現3次以上重復的記錄

SELECT * FROM T_DesignReply WHERE Dr_ProjectNumber IN
(
SELECT Dr_ProjectNumber FROM T_DesignReply GROUP BY Dr_ProjectNumber HAVING count(Dr_ProjectNumber)>3
)

==》Select *From A Where id in(select ID from A group by id having count(id)>3)

2.查詢表A中IName出現3次以上重復的記錄

 Select * From A Where Name in(select Name from A group by Name having count(Name)>3

 


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