Sql Interview Questions

Frequently Asked Questions On SQL 

Following questions are asked by interviewers during the F2F interview , So guys do not worry about questions. It helps you a lot during your technical interview. 

1. Difference Between Drop, Delete and truncate Command in SQL? 
2. Define Join? Types of join?
3. Difference b/w Primary key and Unique key?
4. Can we set multiple null values for unique key?
5. Names of DDL and DML Commands?