title: Problem deleting rows using left outer join in mysql
body: <p>Cant seem to workout what im doing wrong here</p>
  
  <p><code>SELECT * FROM tbl_imagelabel LEFT OUTER JOIN tbl_image ON tbl_imagelabel.label_id = tbl_image.label_id WHERE tbl_image.label_id is NULL</code></p>
  
  <p>shows the exact rows I want to delete. but if i change SELECT * FROM to DELETE FROM it doesnt work</p>
  
  <p><code>DELETE FROM tbl_imagelabel LEFT OUTER JOIN tbl_image ON tbl_imagelabel.label_id = tbl_image.label_id WHERE tbl_image.label_id is NULL</code></p>