I don’t know if the question make sense or not. I’m trying to request information from 2 different tables that are linked (via FK) to a table and display the data with information from that linked tables.
post
+--------+--------+---------+-------------+ | postid | userid | title | description | +--------+--------+---------+-------------+ | 1 | 1 | example | example | +--------+--------+---------+-------------+ | 2 | 2 | example | example | +--------+--------+---------+-------------+ | 3 | 3 | example | example | +--------+--------+---------+-------------+
user
+--------+----------+--------+ | userid | username | roleid | +--------+----------+--------+ | 1 | admin | 1 | +--------+----------+--------+ | 2 | helper | 1 | +--------+----------+--------+ | 3 | test | 2 | +--------+----------+--------+
role
+--------+---------------+ | roleid | role | +--------+---------------+ | 1 | administrator | +--------+---------------+ | 2 | default | +--------+---------------+
Is there a way to select/show this table?:
result
+----+--------------+---------------+---------+ | id | creator_name | creator_role | title | +----+--------------+---------------+---------+ | 1 | admin | administrator | example | +----+--------------+---------------+---------+ | 2 | helper | administrator | example | +----+--------------+---------------+---------+ | 3 | test | default | example | +----+--------------+---------------+---------+
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Answer
Try this:
select a.postid id, b.username creator_name, c.role creator_role, a.title from `post` a left join `user` b on (a.userid = b.userid) left join `role` c on (b.roleid = c.roleid)