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1·How to make an edit form for a one-to-one relationship?

如何使一个编辑的一对一关系形式？

2·One-to-one relationship or NULL field for optional column?

一对一的关系或空字段为可选的列？

3·The primary key side of a one-to-one relationship is denoted by a key symbol.

一对一关系的主键方由键符号表示。

4·A one-to-one relationship needs to be included between the user and subscription models.

用户与订阅模型之间需要包括一个一对一关系。

5·The idea is to help authors build a one-to-one relationship with readers and develop loyalty.

这项计划主要是帮助作家与读者建立“一对一”的关系以便形成更好的忠诚度；

6·What you’ve done here is to define a simple one-to-one relationship between objects of the two classes.

这里所做的是在这两个类的对象之间定义简单的一对一关系。

7·Family doctors: maintain one-to-one relationship with patients. Mostly through outpatient office visits.

家庭医生：与患者保持一对一联系。主要通过门诊看诊。

8·You can have a one-to-one relationship between a single unit of your content or a one-to-many relationship.

在每个内容单元中，您可以使用一对一的关系，也可以使用一对多的关系。

9·If B has a navigation reference property to a (one-to-one relationship) it will assign a to this property.

如果B有一个导航参考属性a(一对一的关系，它将分配)A这一特性。

10·A one-to-one relationship is created if both of the related columns are primary keys or have unique constraints.

当两个相关列都是主键或都具有唯一约束时，将创建一对一关系。