SUM()

[maxudaskin]

Is it possible to use SUM() and WHERE in the same query if they are both using the same column?

 

<?php
$query      = mysql_query("SELECT type, pid, SUM(totaltime) as sumValue FROM pireps GROUP BY `pid` WHERE type = '0' AND `pid` = '$poster_pid'");
$hours      = mysql_fetch_array($query) or die ("MySQL Error on line 472: " . mysql_error()); // Line 472
?>

 

Outputs

 

Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/.grable/vzoom/virtualzoom.net/comm/forum.php on line 473

MySQL Error on line 472: 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 'WHERE type = '0' AND `pid` = '0100'' at line 1

[BlueSkyIS]

your problem is using a GROUP BY before the WHERE. GROUP BY clause should come after WHERE clause.

[redarrow]

<?php
$query      = mysql_query("SELECT type, pid, SUM(totaltime) as sumValue FROM pireps  WHERE type = '0' AND `pid` = '$poster_pid' AND GROUP BY `pid`");
$hours      = mysql_fetch_array($query) or die ("MySQL Error on line 472: " . mysql_error()); 
?>

[BlueSkyIS]

^ You'll be seeing the mysql_error() on that one.   

 

No AND before a GROUP clause. my preference:

 

"SELECT type, pid, SUM(totaltime) as sumValue FROM pireps WHERE type = '0' AND pid = '$poster_pid' GROUP BY pid"