SELECT
*
FROM
help_relation
WHERE
#在结果中查询重复
help_topic_id IN ( SELECT help_topic_id FROM help_relation GROUP BY help_topic_id HAVING COUNT(*) > 1 )
ORDER BY
help_topic_id
SELECT
*
FROM
help_relation
WHERE
#在结果中查询重复
help_topic_id IN ( SELECT help_topic_id FROM help_relation GROUP BY help_topic_id HAVING COUNT(*) > 1 )
ORDER BY
help_topic_id