1、This is important when data is decomposed into multiple tables having foreign key relationship.
當(dāng)將數(shù)據(jù)分解成多個具有外鍵關(guān)系的表時，這尤其重要。

2、Minimize the triggers, CHECK and foreign key constraints, and generated columns for the table.
盡量減少表上的觸發(fā)器、檢查和外鍵約束以及生成的列。

3、All DOC_IDs are unique to meet the foreign key constraints.
所有DOC_ID都是惟一的，以滿足外鍵約束。

4、Create a foreign key to link this new table with the existing employee table.
創(chuàng)建一個外鍵，以便將這個新表與已有的雇員表相連接。

5、Our virtual foreign key is based on two columns from the TB_RIGHT table.
我們的虛擬外鍵基于TB_RIGHT表的兩個列。

6、Each one-to-one association is buried as a foreign key in the table of either class.
每個一對一的關(guān)聯(lián)在表中任一類中充當(dāng)外鍵。

7、Missing join predicates, but only if a foreign key is defined.
丟失連接謂詞，只在定義了外鍵的情況下。

8、Non-identifying one-to-one foreign key relationship.
非標(biāo)識一對一外鍵關(guān)系。

9、Foreign key definitions in the DDL.
DDL中的外碼定義。

10、Each one-to-many association is buried as a foreign key in the table of the many class.
每個一對多的關(guān)聯(lián)在表中多個類中充當(dāng)外鍵。

11、For foreign key creation, another table with a primary key with a compatible data type is required.
對于創(chuàng)建外鍵，則需要另外一個具有主鍵的表，且該主鍵具有兼容的數(shù)據(jù)類型。

12、For example, the foreign key to the date table is not repeated for every keyword of a document.
例如，日期表的外鍵對于一個文檔的每個關(guān)鍵詞不會重復(fù)。

13、It is similar to a foreign key in a relational database.
它類似于關(guān)系數(shù)據(jù)庫中的外鍵。

foreign key翻譯