sql - 我怎样才能得到属于 Rooms SQL 的 Roomattributes Description

Question

我有 3 个表是我的 SQL 数据库:

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

如何获取属于房间的房间属性。我需要一个 SQL 查询。

提前致谢

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