Create a foreign key to link this new table with the existing employee table.
创建一个外键，以便将这个新表与已有的雇员表相连接。
One column links to the form (the row in the table) using a foreign key.
一列使用一个外键链接到表单上(表中的一行)。
Our virtual foreign key is based on two columns from the TB_RIGHT table.
我们的虚拟外键基于TB_RIGHT表的两个列。
A one-to-many association is specifically mapped to a foreign key in the "many" table.
一个一对多关联被映射到“many ”表的一个外键。
Each one-to-one association is buried as a foreign key in the table of either class.
每个一对一的关联在表中任一类中充当外键。
The document model belongs_to :user if the DOCUMENTS table has a user_id foreign key column.
如果DOCUMENTS表有一个 user_id 外键列，则文档模型为 belongs_to :user。
In my location table in Listing 2, I provide a foreign key back to account.
在清单2中我的location表中，我提供了一个指向account的外键。
The point table (wells_pts) has a foreign-key relationship with the source table (wells).
点表（wells_pts）和源表（wells）之间有外键关系。
How can you create a foreign key to a table in another database with workbench?
你怎么能在另一个数据库中创建与工作台表的外键？
You can click any table that this table references by a foreign key.
可以单击此表中的外键所引用的任何表。
You can click any table that this table references by a foreign key.
可以单击此表中的外键所引用的任何表。
应用推荐