SQL Interview Questions and Answers
SQL Interview Questions and Answers for Fresher as well as Experienced Database Developers, Database Testers, and Database Administrators.
SQL Syllabus – DDL (Data Definition Language), DML (Data Manipulation Language), and DCL (Data Control Language).
SQL Interview Questions and Answers on Relational Database Management System Fundamentals, SQL Language Fundamentals, and SQL Queries & Subqueries.
SQL Interview Questions and Answers for Freshers & Experienced
1. What is SQL?
2. When did SQL launch?
3. Who should learn SQL?
4. What are the Uses of SQL?
5. What is SQL Process?
6. Is SQL support programming?
7. What is the difference between SQL, SQL Server, and MySQL?
8. What are the different subsets of SQL?
9. What do you mean by DBMS? What are its different types?
10. What is Database Engine?
11. What is the difference between DELETE and TRUNCATE statements?
12. What do you mean by the table, field, and record in SQL?
13. What are the important SQL language elements?
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14. What is Database Server?
15. What is the difference between CHAR and VARCHAR data types in SQL?
16. What is an Index in SQL? What are the different types of indexes in SQL?
17. What do you mean by data integrity?
18. What is a Query in SQL? What are the parameters of SQL Queries?
19. What is key in SQL? What are the different types of Keys in SQL?
20. What is the difference between DROP and TRUNCATE commands?
21. What is Normalization and what are the advantages of it?
22. What is the ACID property in a database?
23. What are Entities and Relationships?
24. What are joins in SQL?
25. What do you mean by “Trigger” in SQL?
26. Are NULL values the same as that of zero or a blank space?
27. What is a subquery in SQL?
28. What is the SELECT statement?
29. What is a relationship and what are they?
30. What is a stored procedure?