CIBlockSectionPropertyLink::DeleteBySection

static function DeleteBySection($SECTION_ID, $PROPERTY_ID = null)
{
	global $DB;
	$SECTION_ID = intval($SECTION_ID);
	if (is_array($PROPERTY_ID))
		$PROPERTY_ID = array_map("intval", $PROPERTY_ID);
	elseif ($PROPERTY_ID !== null)
		$PROPERTY_ID = array(intval($PROPERTY_ID));

	$DB->Query("
		DELETE FROM b_iblock_section_property
		WHERE SECTION_ID = ".$SECTION_ID."
		".($PROPERTY_ID? "AND PROPERTY_ID NOT IN (".implode(", ", $PROPERTY_ID).")": "")."
	");
}