# 查询重复的记录,查找id重复的记录 Select id,Count(*) From news Group By id Having Count(*) > 1 #查找某个分类下 有多少条记录 Select id,catid,Count(*) From product where catid=180 Group By catid Having Count(*) > 0
mysql 重复记录
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转载自wyqjx.iteye.com/blog/2082545
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