SELECT Count(*) FROM Work WHERE (UserID='user1' AND MAX(Finished)=0) Work:- +---+-------+--------+---------+----------+ | ID | JobID | UserID | Finished | Comment | +---+-------+--------+---------+----------+ | 1 | 1 | user1 | 0 | ... | | 2 | 1 | user1 | 1 | ... | | 3 | 2 | user2 | 0 | ... | | 4 | 3 | user1 | 0 | ... | | 5 | 2 | user2 | 0 | ... | | 6 | 2 | user1 | 1 | ... | | 7 | 3 | user1 | 0 | ... | +---+-------+--------+---------+----------+
All I want it to do is return the number of unfinished jobs for a specific user. In this example it would return 1 because job number 3 is not finished and user1 was the last person working on it. but I keep getting MySQL error #1111 - Invalid use of group function ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster