Invalid query: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'GROUP BY blog.id ORDER BY blog.datum DESC LIMIT 10' at line 9 Whole query: SELECT blog.id, blog.titel, count(blog_reply.id) as br FROM blog JOIN users ON (users.id = blog.owner) LEFT JOIN blog_reply on (blog_reply.bid = blog.id AND blog_reply.publish = 'yes') WHERE owner = GROUP BY blog.id ORDER BY blog.datum DESC LIMIT 10