您要查找的是不是：
- Primary key - foreign key relationships. 主键-外键关系。
- The Foreign Key Relationships dialog box opens. “外键关系”对话框随即打开。
- If it cannot find a foreign key relationship between the tables, the default is a cross product. 如果查询编辑器在表之间找不到外键关系,则缺省设置为矢量积。
- In order to create a foreign key relationship, at least one of the two tables must have a primary key or unique constraint defined. 要创建外键关系,两个表中必须至少有一个定义了主键或唯一约束。
- If you add tables in the Query Editor Tables tab, the Query Editor checks to see if a foreign key relationship has been created between the tables. 如果您在查询编辑器的[表]选项卡中添加多个表,查询编辑器就会检查表之间是否已创建了外键关系。
- Specifies what happens if an end user of the database tries to delete a row with data that is involved in a foreign key relationship. 指定如果数据库的最终用户试图删除包含外键关系所涉及的数据的行,将执行什么操作。
- Invest time and energy in to your key relationships. 多花费一些时间和精力陪陪那些对你来说很重要的人。
- Indicates whether changes to the data of the columns in the relationship are allowed if those changes would invalidate the integrity of the foreign key relationship. 指示如果对关系中列数据的更改将破坏外键关系的完整性,是否允许进行这些更改。
- An xml data type column can be created in a table that contains other relational columns, or in a separate table with a foreign key relationship to a main table. 可以在包含其他关系列的表中,或在与主表具有外键关系的单独表中创建xml数据类型列。
- For example, the following query is a simple key join that joins the tables product and sales_order_items based on the foreign key relationship in the database. 例如,以下查询是一个简单的键连接,它基于数据库中的外键关系连接表product和sales_order_items。
- Specify whether changes are allowed to the data of the columns in the relationship if those changes would invalidate the integrity of the foreign key relationship. 指示如果对关系中列数据的更改会使外键关系的完整性失效,是否允许进行这样的更改。
- The boxes represent tables, and the arrows represent foreign key relationships. 方框表示表,箭头表示外键关系。
- Describes the steps to create a dataset and use it to validate data in a one-to-many or keyed relationship. 描述创建数据集并用它来验证一对多关系或键控关系中数据的步骤。
- Undeclared primary key-foreign key relationships exist between tables when there is an implied relationship between the values of columns in different tables. 当不同表中的列值之间存在隐含关系时,表之间存在未声明的主键-外键关系。
- They were aided by economic advisers, who built working models of the economy, quantifying the key relationships. 经济顾问建立了经济运作模型，对关键关系进行定量；
- You won't see this coming, and I am sorry to say that this will be a very rocky time for one of your key relationships. 你将不会看到这未来，我很抱歉地告诉你，对于你那段至关重要的亲密关系，这可能会是一段非常艰难的时期。
- KEY RELATIONSHIPS: Internal: Restaurant Staff, Bar Staff, Kitchen/Stewarding Staff, Cashiers. 主要工作关系内部：餐厅员工，酒吧员工，厨房员工，管事部员工，财务人员。
- This enables intra-document links and is similar to the primary key and foreign key relationships in relational databases. 这将启用文档内链接,这与关系数据库中主键和外键关系类似。
- Software Description: Relational Data Explorer (RDE) is a tool to comfortably navigate between database tables connected by foreign key relationships. 是一款用于通过外部关联键在数据库表之间进行轻松导航的工具。
- You may leave your key at the reception desk. 你可以把钥匙留在服务台。
