mysql 数据表中查找重复记录
SELECT
open_id,
ip,
Count(*)
FROM
user
WHERE
type = 'readypro'
GROUP BY
ip
HAVING
Count(*) > 1
ORDER BY
Count(*) DESC;
本文介绍了一种使用SQL查询来查找MySQL数据库中特定类型为'readypro'的user表中的重复记录的方法。通过group by和having子句组合使用,可以有效地找出IP地址重复的记录,并按重复次数降序排列。
mysql 数据表中查找重复记录
SELECT
open_id,
ip,
Count(*)
FROM
user
WHERE
type = 'readypro'
GROUP BY
ip
HAVING
Count(*) > 1
ORDER BY
Count(*) DESC;

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