Find duplicate records in MySQL

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别跟我提以往
别跟我提以往 2020-11-21 23:12

I want to pull out duplicate records in a MySQL Database. This can be done with:

SELECT address, count(id) as cnt FROM list
GROUP BY address HAVING cnt >         


        
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  •  我寻月下人不归
    2020-11-21 23:55

    Not going to be very efficient, but it should work:

    SELECT *
    FROM list AS outer
    WHERE (SELECT COUNT(*)
            FROM list AS inner
            WHERE inner.address = outer.address) > 1;
    

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