K A*_*ngh 6 mysql group-by group-concat
我想删除多余的重复记录
即在显示的图像中有两条记录corporate_id = 5和category_id = 19,如何删除任何重复的行(这corporate_sed_id是主键)
小智 10
用这个 :-
DELETE
FROM
corporate
WHERE
corporate_sed_id IN(
SELECT
*
FROM
(
SELECT
MIN(corporate_sed_id)
FROM
corporate
GROUP BY
corporate_id,
category_id
HAVING
COUNT(corporate_sed_id) > 1
) temp
)
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