如何从表中删除重复的数据

问题描述

如何从表CATS中删除重复数据



Cat_ID标题

2630一个诗集

2641一群诗人

10390一群诗人

9481一句诗句

2621一大串诗歌



在此表CATS中，Cat_ID是具有自动识别功能的主键，现在我想从表中删除重复数据。



先谢谢。

Bigyan

How to Remove Duplicate Data From a table CATS

Cat_ID Title
2630A BOUQUET OF POEMS
2641A BOUQUET OF POEMS
10390A BOUQUET OF POEMS
9481A BOUQUET OF POEMS
2621A BOUQUET OF POEMS

In this table CATS, Cat_ID is primary key with Auto Identity, And now I want to delete duplicate Data from the table.

Thanks in Advance.
Bigyan

推荐答案

DELETE FROM Cats
WHERE Cat_ID IN (
    SELECT Cat_ID
    FROM (
        SELECT Cat_ID, Title, ROW_NUMBER() OVER(PARTITION BY Title ORDER BY Cat_ID) AS RowNo
        FROM Cats
    ) AS T
    WHERE T.RowNo>1)

这篇关于如何从表中删除重复的数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！