Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.

With foreign key associations , you can use both Methods: To change create or modify relationships.

通过外键关联, 可以使用两种方法更改创建或修改关系.

Creating a relationship also creates a foreign-key constraint that is added to the child table.

建立关联性的同时,也会建立要加入至子资料表的外部索引键条件约束.

A primary key of a table can be a foreign key in any other table.

主键的表可以是外键,在任何其他表.

Filters that are created for each foreign key or Boolean fields.

可提供针对每个外键或针对布尔型字段创建的筛选器.

With independent associations, you cannot use the foreign key property.

使用独立关联, 则不能使用外键属性.

Include foreign key columns as properties on entity types.

将外键列作为属性包括在实体类型中.

The foreign key constraint is applied when you save the table.

当保存该表时应用外键约束.

However, you can change the order of columns after the primary key is created.

但是, 可在创建主键后更改列的顺序.

Defining the table's primary key ( after creating columns ).

在创建列后 定义表 的主键.

Right-click the column you want to set as the primary key.

右击要将其设置为主键的列.

This index requires each value in the primary key to be unique.

该索引要求主键中的每个值都唯一.

Right-click the row selector for the column and select Set Primary Key.

右击该列的行选择器,然后选择“设置主键”.

The element defines the primary key of the main table.

元素定义了主表格中的主键.

Note: The primary key field is numeric by default.

注意: 主键字段默认为数值型.

Choose two fields from the database table that comprise the primary key.

从数据库表中选择构成主关键字的两个字段.

Accessor 1 contains all columns except the primary key.

访问器1包含除主键外的所有列.

The primary key can be specified only for the top root view.

不可以在一列或多列上同时有主键和唯一约束.

A primary key is a column a unique value for each row.

主键是指每记录行带有唯一值的栏目.

You must specify the primary key for a table.

您必须指定主键的表.

As a low-cost and efficient motorcar network protocol, LIN is used for auxiliary network of bus.

LIN是一种低成本、高效率的汽车网络协议, 作为CAN总线 的辅助网络被大量使用.