$ sgrep -e '$DB->get_records(A, B, C, D, 0, 1, ...)' . 2> /dev/null

enrol/database/lib.php:654

             $categories = $DB->get_records('course_categories', array(), 'sortorder', 'id', 0, 1);

enrol/ldap/lib.php:973

             $categories = $DB->get_records('course_categories', array(), 'sortorder', 'id', 0, 1);

grade/grading/form/guide/lib.php:566

             if ($rs = $DB->get_records('grading_instances', array('raterid' => $raterid, 'itemid' => $itemid),

                 'timemodified DESC', '*', 0, 1)) {

grade/grading/form/rubric/lib.php:573

             if ($rs = $DB->get_records('grading_instances', $params, 'timemodified DESC', '*', 0, 1)) {

lib/deprecatedlib.php:2593

         if ($category = $DB->get_records('course_categories', null, 'sortorder', '*', 0, 1)) {

lib/questionlib.php:1034

     $category = $DB->get_records('question_categories',

             array('contextid' => $contextid), 'id', '*', 0, 1);

mod/assign/locallib.php:1987

         $submissions = $DB->get_records('assign_submission', $params, 'attemptnumber DESC', '*', 0, 1);

mod/assign/locallib.php:2589

         $submissions = $DB->get_records('assign_submission', $params, 'attemptnumber DESC', '*', 0, 1);

mod/assign/locallib.php:2705

         $grades = $DB->get_records('assign_grades', $params, 'attemptnumber DESC', '*', 0, 1);

mod/lesson/locallib.php:1237

         if (!$timer = $DB->get_records('lesson_timer', array ("lessonid" => $this->properties->id, "userid" => $USER->id), 'starttime DESC', '*', 0, 1)) {

mod/lesson/view.php:469

                     if (!$grades = $DB->get_records("lesson_grades", array("lessonid" => $lesson->id, "userid" => $USER->id), "completed DESC", '*', 0, 1)) {

course/lib.php:3579

     $swapcourse = $DB->get_records_select('course', $select, $params, $sort, '*', 0, 1);

lib/coursecatlib.php:2562

         $swapcategory = $DB->get_records_select('course_categories', $select, $params, $sort, '*', 0, 1);