MySQL 子查询限制
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时间:2020-08-31 16:04:37 来源:igfitidea点击:
MySQL Subquery LIMIT
提问by Atif Mohammed Ameenuddin
As the title says, I wanted a workaround for this...
正如标题所说,我想要一个解决方法......
SELECT
comments.comment_id,
comments.content_id,
comments.user_id,
comments.`comment`,
comments.comment_time,
NULL
FROM
comments
WHERE
(comments.content_id IN (SELECT content.content_id FROM content WHERE content.user_id = 1 LIMIT 0, 10))
Cheers
干杯
回答by Quassnoi
SELECT comments.comment_id,
comments.content_id,
comments.user_id,
comments.`comment`,
comments.comment_time,
NULL
FROM (
SELECT content.content_id
FROM content
WHERE content.user_id = 1
LIMIT 10
) q
JOIN comments
ON comments.content_id = q.content_id
You probably will want to add an ORDER BY
into the nested query.
您可能希望ORDER BY
在嵌套查询中添加。