另一个数据库设计问题

Question

我正在设计一个数据库，我有如下结构：

是一个游戏数据库，我会有用户，游戏和组。

A game will have 1 owner (an user). In other words a game will be created by an user. 
A game will have 1..n groups. 

A group will have 1 owner (an user). In other words a group will be created by an user. 
A group will have 1..n users. 

A user will belong to a group. The user can't belong to more that ONE group. 
A user will belong to a game. The user can't belong to more than ONE game. 

我不知道如何知道哪个用户创建了一个游戏。我认为有两种可能：

• 从游戏表中添加一个外键到 用户表。
• 在用户表中添加一列，名为 gameOwner，如果用户 创建了游戏，则将其设置为true。

这里是我的表：

User 
-------------------------------------- 
Id     | PK 
Name    | User name (not null) 
GroupOwner   | Bool type. True if user has created a group. 
GroupId    | FK to group table. Can be null: user is not playing any game now. 


Group 
-------------------------------------- 
Id     | PK 
Name    | Group name (not null) 
GameId    | FK to game table. Group belongs to this game. 


Game 
-------------------------------------- 
Id     | PK 
Name    | Game name (not null). 

我怎么能代表一个用户创建了一个游戏？

UPDATE

游戏总是需要一个所有者。
游戏的拥有者将永远是一样的。
游戏结束时可以删除。

Answer 1

表示您所描述的所有权关系的最常见和最自然的方式是将组和游戏表中的外键添加到用户表中。

如果你这样做，你不应该在用户表中需要标志字段来表示用户是否是所有者。这可以通过查询来确定。

我与

User 
-------------------------------------- 
Id     | PK 
Name    | User name (not null) 
GroupId    | FK to group table. Can be null: user is not playing any game now. 


Group 
-------------------------------------- 
Id     | PK 
Name    | Group name (not null) 
GameId    | FK to game table. Group belongs to this game. 
OwnerId    | FK to User table. Group belongs to this user. 


Game 
-------------------------------------- 
Id     | PK 
Name    | Game name (not null). 
OwnerId    | FK to User table. Game belongs to this user. 

Answer 2

我想说的是添加一个用户ID字段到组和游戏表，这是指组的用户是游戏的所有者。