How do I delete multiple?

Hello,

I have got 3 tables as posts, posts_tags and tags. I want delete according to post ID. How do I manage it?

My beginner query:

DELETE tags,post_tags,posts FROM tags,post_tags,posts WHERE posts.id=133 AND tags.id = post_tags.tagid AND posts.id = post_tags.postid

Code (markup):

 

Do it in 3 delete statements, in the following order.

DELETE FROM tags WHERE tags.id in (SELECT post_tags.tagid FROM post_tags WHERE post_tags.postid=133;
DELETE FROM post_tags WHERE post_tags.postid=133;
DELETE FROM posts WHERE posts.id=133;