From: tjhunt <tjhunt>
Date: Tue, 21 Oct 2008 05:45:39 +0000 (+0000)
Subject: quiz reports: MDL-16948 SQL does not work in Oracle - you are not allowed to refer... 
X-Git-Url: http://git.mjollnir.org/gw?a=commitdiff_plain;h=78268862d303d4e9490df081e013015fc47ce107;p=moodle.git

quiz reports: MDL-16948 SQL does not work in Oracle - you are not allowed to refer to output column names in GROUP BY. Fix thanks to Francois Marier.
---

diff --git a/mod/quiz/report/reportlib.php b/mod/quiz/report/reportlib.php
index ba77bd674d..71a167945d 100644
--- a/mod/quiz/report/reportlib.php
+++ b/mod/quiz/report/reportlib.php
@@ -273,7 +273,7 @@ function quiz_report_grade_bands($bandwidth, $bands, $quizid, $userids=array()){
     WHERE qg.quiz = q.id " .
             ($usql?"AND qg.userid $usql ":'') .
             "AND qg.quiz = ?
-    GROUP BY band
+    GROUP BY FLOOR(qg.grade/$bandwidth)
     ORDER BY band";
     $params[] = $quizid;
     $data = $DB->get_records_sql_menu($sql, $params);