What is SQL constraints?, What is dependency for JDBC?, How can we connect to DB?, Data structures and why we need it ?, What is metadata?, Have you worked with non-relational databases?, Have you done any backend/database testing?What is the process?, Do you have experience with SQL?, How to find second highest salary of employees?, UNION vs JOIN?, What are the join types?, How to find lowest salary?, How to find maximum salaries in each department?, How to findminimum salaries in each departments?, How to find employees whose salaries are below the average?, What does distinct keyword do?, What does select keyword do?, What does left outer join keyword do?, What does where keyword do?, Which keyword does accept all data from both table?, DML vs DDL?, What is Connection String?.

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