Такая ошибка:

Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause



КОД:

$result=mysql_query("SELECT description, min(schedule.date) as date FROM schedule where (date-'$todayDate')>15 and (date>'$todayDate') ")or die(mysql_error());


$n=mysql_num_rows($result);

for($i=0;$i<$n;$i++) {
$dataBase=date("Y-m-d H:i:s", strtotime("+0 minute ".mysql_result($result,$i,date)));

Когда ставлю групировку, то выкидывает такое:

Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively in Unknown on line 0

ап

а в ответ тишина

Подобные вещи можно писать только вместе с GROUP BY