Constraints in SQL by Mr. Ajay Sharma, Biyani Girls College, Jaipur, Rajasthan

In this Video, Mr. Ajay Sharma, assistant professor, Biyani Girls College, Jaipur, explains about the constraints in SQL. There are various types of SQL which are as follows:
1. Primary key
2. Not null
3. Unique key
4. Foreign key
5. Check