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摆脱多个一对一的关系

[英]Get rid of multiple one-to-one relationships

原文 2018-05-21 23:04:43 3 1 sql/ sql-server/ dependencies/ relationship/ one-to-one

I have multiple one-to-one relationships in the following data model between: 在以下数据模型之间，我具有多个一对一关系：

logins & accounts 登录名和帐户
donors & accounts 捐助者和帐户
patients & accounts 患者和账目

SQL Server Blood Bank data model SQL Server血库数据模型

I am facing troubles in altering the database, mainly caused by FK's related to one-to-one relationships , made only between PK'S . 我在更改数据库时遇到麻烦，这主要是由于FK仅与PK之间的一对一关系有关 。

My best guess is that all my troubles are caused by a bad design . 我最好的猜测是，我所有的麻烦都是由不良的设计引起的。 How can I get rid of the one-to-one dependencies? 如何摆脱一对一的依赖关系？

Any changes could be made.. 可以进行任何更改。

1 个解决方案

I think its so better than your database design. 我认为它比您的数据库设计更好。 Do you have any question? 你有什么问题吗？

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