Hi folks! I'm kind of ashamed to ask a question, as I haven't followed this list very much lately. This isn't exactly a PHP question, but since mysql is the most popular database engine used with php, I figured someone here might have an idea. I have 2 tables. Table A containing 2 fields. A user ID and a picture ID => A(uid,pid) and another table B, containing 3 fields. The picture ID, an attribute ID and a value for that attribute => B(pid,aid,value). Table B contains several rows for a single PID with various AIDs and values. Each AID is unique to a PID. (e.g. AID = 1 always holding the value for the image size and AID = 3 always holding a value for the image type) The goal is now to join table A on table B using pid, and selecting the rows based on MULTIPLE attributes. So the result should only contain rows for images, that relate to an attribute ID = 1 (size) that is bigger than 100 AND!!!!!!! an attribute ID = 5 that equals 'jpg'. I know that there is an easy solution to this, doing it in one query and I have the feeling, that I can almost touch it with my fingertips in my mind, but I can't go that final step, if you know what I mean. AND THAT DRIVES ME CRAZY!!!!!! I appreciate your thoughts on this. Regards, Jan