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SQL - Foreign Key - Tutorials for DOM, AngularJS, IMS-DB, NGN, Sed, WCF, JPA, Apac
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日期:2025-04-29
A foreign key is a key used to link two tables together. This is sometimes called a referencing key. Foreign Key is a column or a combination of columns whose values match a Primary Key in a different table. The relationship between 2 tables matches the P...看更多