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making a SQL cross-db compatible

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This commit is contained in:
toyomoyo 2007-11-19 01:13:31 +00:00
parent d4775d5495
commit f7bd8c758f
1 changed files with 2 additions and 2 deletions
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4
lib/db/upgrade.php
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@ -2589,7 +2589,7 @@ function xmldb_main_upgrade($oldversion=0) {
/// try to remove duplicate entries
$SQL = "SELECT id, userid, itemid
$SQL = "SELECT userid, itemid, COUNT(*)
FROM {$CFG->prefix}grade_grades
GROUP BY userid, itemid
HAVING COUNT( * ) >1";
@ -2597,7 +2597,7 @@ function xmldb_main_upgrade($oldversion=0) {
if ($dups = get_records_sql($SQL)) {
// for each set of userid, itemid
foreach ($dups as $dup) {
if ($thisdups = get_records_sql("SELECT id,id FROM {$CFG->prefix}grade_grades
if ($thisdups = get_records_sql("SELECT id FROM {$CFG->prefix}grade_grades
WHERE itemid = $dup->itemid AND userid = $dup->userid
ORDER BY timemodified DESC")) {