From dc3826eed73a677a53b2f6de6d7e8a8886cf60aa Mon Sep 17 00:00:00 2001
From: Tim Hunt <T.J.Hunt@open.ac.uk>
Date: Wed, 9 Feb 2011 20:48:21 +0000
Subject: [PATCH] MDL-26338 fix mixed types in quiz reports SQL. This was
 breaking Oracle

---
 mod/quiz/report/overview/report.php  | 2 +-
 mod/quiz/report/responses/report.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mod/quiz/report/overview/report.php b/mod/quiz/report/overview/report.php
index 0ef2a32f7e5..7a9b5e14577 100644
--- a/mod/quiz/report/overview/report.php
+++ b/mod/quiz/report/overview/report.php
@@ -202,7 +202,7 @@ class quiz_overview_report extends quiz_default_report {
         if (!$nostudents || ($attemptsmode == QUIZ_REPORT_ATTEMPTS_ALL)) {
 
             // Construct the SQL
-            $fields = $DB->sql_concat('u.id', '\'#\'', 'COALESCE(qa.attempt, \'0\')').' AS uniqueid, ';
+            $fields = $DB->sql_concat('u.id', '\'#\'', 'COALESCE(qa.attempt, 0)').' AS uniqueid, ';
             if ($qmsubselect) {
                 $fields .=
                     "(CASE " .
diff --git a/mod/quiz/report/responses/report.php b/mod/quiz/report/responses/report.php
index b73ccfd7517..01662ff6a6b 100644
--- a/mod/quiz/report/responses/report.php
+++ b/mod/quiz/report/responses/report.php
@@ -185,7 +185,7 @@ class quiz_responses_report extends quiz_default_report {
             $hasfeedback = quiz_has_feedback($quiz);
 
             // Construct the SQL
-            $fields = $DB->sql_concat('u.id', '\'#\'', 'COALESCE(qa.attempt, \'0\')').' AS concattedid, ';
+            $fields = $DB->sql_concat('u.id', '\'#\'', 'COALESCE(qa.attempt, 0)').' AS concattedid, ';
             if ($qmsubselect) {
                 $fields .=
                     "(CASE " .