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From: "John McGough" <goff@funkster.org.uk>
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Subject: SQL query help?
Date: Mon, 7 Mar 2005 16:22:15 -0000
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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