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问题描述
我有一个包含超过15列的表,因为只有两列具有重复值,我想根据这两列来删除重复值...
源数据(从评论中复制)
I have one table that contain more than 15 columns,in that only two column having repeated values i want to dlete that repeated value based on that two columns...
Source data (copied from comments)
name srno rowid subfrom subto
ash 1 1 sa01 sa02
ash 1 2 sa01 sa03
ash 1 3 sa01 sa43
ash 1 4 sa01 sa02
ash 1 5 sa01 sa07
ash 1 6 sa01 sa02
raj 1 1 sa02 sa17
raj 1 2 sa02 sa89
raj 1 3 sa02 sa17
raj 1 4 sa02 sa02
raj 1 5 sa02 sa90
raj 1 6 sa02 sa89
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