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  • 去重复的sql(Oracle)

    1.利用group by 去重复

    2.可以利用下面的sql去重复,如下

      1) select id,name,sex from (select a.*,row_number() over(partition by a.id,a.set order by name) su from test a ) where su=1

      2)select id,name,sex from (select a.*,row_number() over(partition by a.id,a.sex order by name) su from test a) where su>1

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  • 原文地址:https://www.cnblogs.com/lingtiaoti/p/9770710.html
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