Обращение к MYSQL

global $DB;

Вывод:
$results = $DB->Query("SELECT * FROM `b_learn_rights` WHERE `LESSON_ID` = '$LESSID' AND `SUBJECT_ID` = 'G16'");
$resultsGgruppa = $DB->Query("SELECT * FROM `b_learn_rights` WHERE `LESSON_ID` = '$LESSID' AND `SUBJECT_ID` = '$idgruppa'");

if($resultsG16->SelectedRowsCount()>0) $zapyes=1;
if($resultsGgruppa->SelectedRowsCount()>0) $zapyesGR=1;


Запись:
$res = $DB->Query(
"INSERT INTO `b_learn_rights` (`LESSON_ID`, `SUBJECT_ID`, `TASK_ID`) VALUES ('$LESSID', 'G16', '59');"
);

$res = $DB->Query(
"INSERT INTO `b_learn_rights` (`LESSON_ID`, `SUBJECT_ID`, `TASK_ID`) VALUES ('$LESSID', '$idgruppa', '59');"
);

Удаление:
$res = $DB->Query(
"DELETE FROM `b_learn_rights` WHERE `b_learn_rights`.`LESSON_ID` = $LESSID AND `b_learn_rights`.`SUBJECT_ID` = 'G16'"
);