How do you do many to many table outer joins?

Question

I have 3 tables, foo, foo2bar, and bar. foo2bar is a many to many map between foo and bar. Here are the contents.

select * from foo
+------+
| fid  |
+----         


        

Answer 1

SELECT * FROM foo
  LEFT OUTER JOIN (foo2bar JOIN bar ON (foo2bar.bid = bar.bid AND zid = 30))
  USING (fid);

Tested on MySQL 5.0.51.

This is not a subquery, it just uses parentheses to specify the precedence of joins.