Olá vá na sua db no phpmyadmin e clica em sql
coloque esse codigo:
DELIMITER $$
CREATE DEFINER=`root`@`localhost` PROCEDURE `getroomitems`(IN `roomid` INT(10) UNSIGNED)
BEGIN
SELECT items_rooms.item_id, items_rooms.x, items_rooms.y, items_rooms.n, items.base_id, items_extradata.data, items.rareid, items.group_data
FROM items_rooms
JOIN items ON (items.item_id = items_rooms.item_id)
LEFT JOIN items_extradata ON (items_extradata.item_id = items.item_id)
WHERE items_rooms.room_id = roomid;
END$$
CREATE DEFINER=`ingridho`@`localhost` PROCEDURE `getuseritems`(IN `userid` INT(10) UNSIGNED)
BEGIN
SELECT items_users.item_id, items.base_id, items_extradata.data, items.rareid, items.group_data
FROM items_users
JOIN items ON (items.item_id = items_users.item_id)
LEFT JOIN items_extradata ON (items_extradata.item_id = items.item_id)
WHERE items_users.user_id = userid;
END$$
DELIMITER ;
Executa, religa emulador e seja feliz