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.

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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.

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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.

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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.

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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.

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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.

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

当保存该表时应用外键约束.

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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.

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

在创建列后 定义表 的主键.

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

右击要将其设置为主键的列.

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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.

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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”.

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The element defines the primary key of the main table.

元素定义了主表格中的主键.

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Note: The primary key field is numeric by default.

注意: 主键字段默认为数值型.

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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.

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Accessor 1 contains all columns except the primary key.

访问器1包含除主键外的所有列.

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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.

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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.

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You must specify the primary key for a table.

您必须指定主键的表.

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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.

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