New function sql_substr() returns the proper substr() function for each DB

Merged from MOODLE_17_STABLE
2006-10-30 18:31:08 +00:00
parent 0db568393d
commit 06edab84e1
1 changed files with 11 additions and 0 deletions
@@ -1570,6 +1570,17 @@ function sql_as() {
    }
 }

+/**
+ * Returns the proper substr() function for each DB
+ * Relies on ADOdb $db->substr property
+ */
+function sql_substr() {
+
+    global $db;
+
+    return $db->substr;
+}
+
 /**
 * Returns the SQL text to be used to order by one TEXT (clob) column, because
 * some RDBMS doesn't support direct ordering of such fields.