SELECT
*
FROM
crawler_property_copy1
WHERE
(user_mobile + estate_name ) IN ( SELECT user_mobile + estate_name FROM crawler_property_copy1 GROUP BY user_mobile, estate_name HAVING COUNT ( * ) > 1 ) ORDER BY user_mobile
DELETE
FROM
crawler_property_copy1
WHERE
( user_mobile + estate_name ) IN ( SELECT user_mobile + estate_name FROM crawler_property_copy1 GROUP BY user_mobile, estate_name HAVING COUNT ( * ) > 1 )
AND id NOT IN (
SELECT MAX ( id ) FROM crawler_property_copy1 GROUP BY user_mobile, estate_name HAVING COUNT ( * ) > 1
)
sqlserver之多字段查重与重复只保留一个数据
猜你喜欢
转载自blog.csdn.net/wangh92/article/details/89922134
今日推荐
周排行