摘要:
找出卡号重复的select card from krs group by card having count(*)>1查询重复语句:select name from krs group by name having count(name) >2一些不错的sql语句,1、说明:复制表(只复制结构,源表 阅读全文
posted @ 2019-09-28 09:47
茶屋四郎
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