我怎樣才能得到屬於客房SQL

Question

的Roomattributes說明我有3個表是我的SQL數據庫：

First Table: Room: ID <pk>, Roomname 
Second Table: RoomRelationsship: ID<pk>, Room_ID <fk>, Roomattributes_ID<fk> 
Third Table: Roomattributes: ID<pk>, Attributename 

我怎樣才能獲得Roomattributes，屬於客房。我需要一個SQL查詢。

預先感謝您

Answer 1

SELECT Room.ID, Room.Roomname, Roomattributes.Attributename 
FROM Room 
INNER JOIN RoomRelationsship ON RoomRelationsship.Room_ID = Room.ID 
INNER JOIN Roomattributes ON RoomRelationsship.Roomattributes_ID = Roomattributes.ID