Question

Possible Duplicate:
MySQL delete row from multiple tables

I have 5 tables:

• members
• member_videos
• member_photos
• member_friends
• member_pages

When I delete that member, I want to delete all his records from these tables. member_id exist in all tables. I’m doing this with 5 queries for each table. Can I use LEFT JOIN or something like this do to this in one query?

Answer 1

Yes, you can.

DELETE m, mv, mp, mf, mpp
FROM members AS m
LEFT JOIN member_videos  AS mv  ON mv.member_id = m.id
LEFT JOIN member_photos  AS mp  ON mp.member_id = m.id
LEFT JOIN member_friends AS mf  ON mf.member_id = m.id
LEFT JOIN member_pages   AS mpp ON mpp.member_id = m.id
WHERE m.id = 12