what is sql default constraints interview questions in tamil

in this video we will learn sql constraints interview questions in tamil | part-2| default constraint

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part 3 check constraint- https://youtu.be/NX-qUm1WM0I?si=niE2iUtGkuitSMZi

part 4 primary key constraint- https://youtu.be/mRIXSjUYdHA?si=27HZBzWYE3yeA8Mp

part 5 unique key constraint-https://youtu.be/87Gdm0LdzvM?si=5mSOBNqaZ-WXzdhT

part 6 foreign key constraint-https://youtu.be/YpWLoEEc9sI?si=XgSSv5O7KDlK3FSJ