An attribute or set of attributes in a relational database table, that provides a link between two tables is called a foreign key. consistency and accuracy of data within a referenced data is said to be referential integrity and this is maintained by using a foreign key. Watch the complete video to understand the concept completely.

Video Chapters:

Introduction: 00:00
Definition & Properties: 02:22
Referential Integrity: 04:06
How to maintain referential integrity: 04:58


Keys in DBMS | Playlist:    • Types of Keys | DBMS  

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