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Difference between Primary and Foreign Key in DBMS | Primary key and Foreign key in SQL

Hey There Dev Champ, We have gathered here once again to discuss Relational Database Management System…

In this video we shall discuss the Difference between Primary Key and Foreign Key in DBMS & Primary key and Foreign key in SQL.

This video is a short video of complete discussion on Keys in DBMS. If you have missed it out, watch the video by clicking on the link above. Link is also available in the description below.

A Primary Key can consist of a single or multiple columns of a table to uniquely identify a row of the table
and it cannot contain Null or duplicate value.

Foreign Key, As the name specifies, it is a key which is used to combine different tables together based on value of some column.

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►************* Important Links *********
1. https://www.youtube.com/watch?v=rWFVuxiMelQ
2. https://www.youtube.com/watch?v=tk1wXKOA7Rw
3. https://www.youtube.com/watch?v=167EQ9xDQVk
4. https://studio.youtube.com/video/g6gdLN-7uaQ/edit

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https://www.youtube.com/watch?v=Gm0_EidzhoU

Difference between Primary and Foreign Key in DBMS | Primary key and Foreign key in SQL Hey There Dev Champ, We have gathered here once again to discuss Relational Database Management System… In this video we shall discuss the Difference between...