insert into layout_element_parameters (element_id, key, value) values (:element_id, :key, :value) delete from layout_element_parameters where element_id = :element_id and key = :key and value = :value delete from layout_element_parameters where element_id = :element_id and key = :key select value from layout_element_parameters where element_id = :element_id and key = :key delete from layout_element_parameters where element_id = :element_id and key = :key insert into layout_element_parameters (element_id, key, value) values (:element_id, :key, :value) select key, value from layout_element_parameters where element_id = :element_id