select object_type from acs_objects where object_id = :folder_id select parent_id from cr_items where item_id = :item_id select count(*) from cr_mime_types where mime_type = :mime_type insert into cr_mime_types (mime_type, file_extension) values (:mime_type, :extension) select item_id from cr_items where parent_id = :parent_id and name = :name select count(*) from cr_items where cr_items.parent_id = :folder_id