摘要：
--查询重复的记录SELECT a.* FROM Contact a,(SELECT Cust_ID,Contact_NameFROM ContactGROUP BY Cust_ID,Contact_NameHAVING COUNT(1)>1 ) AS bWHERE a.Cust_ID=b.Cust 阅读全文
posted @ 2022-12-01 14:41
edrp.cn
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