Define Constraints - (Null, Not Null, Default, Unique, Check, Primary Key... for beginner in Hindi

In this tutorials:- what are constraints? NOT NULL CONSTRAINT DEFAULT CONSTRAINT UNIQUE CONSTRAINT PRIMARY KEY CONSTRAINT FOREIGN KEY CONSTRAINT CHECK CONSTRAINT INDEX CONSTRAINT DROPPING CONSTRAINT INTEGRITY CONSTRAINT What is Primary Key with Example - SQL Server Tutorial - For beginners in Hindi https://www.youtube.com/watch?v=teDCsfCC-n8&t=115s #SQLServer #rajkumarkarolia ----------------------THANK YOU SO MUCH!--------------------- --------------------Support me by (it's free)----------------------- LIKE | COMMENT | SHARE | SUBSCRIBE