Database management system (DBMS) common Interview interview questions

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  1. What is a database management system?
  2. What is the difference between a relational database and a non-relational database?
  3. Explain the difference between a primary key and a foreign key.
  4. How do you optimize database performance?
  5. What is a deadlock in a database, and how can it be avoided?
  6. What are the different types of indexing in a database, and when would you use each one?
  7. What is the difference between a primary key and a unique key?
  8. What is normalization, and why is it important in database design?
  9. Explain the difference between a clustered index and a non-clustered index.
  10. What is ACID in the context of database transactions?
  11. What is a stored procedure, and how does it differ from a function?
  12. What is the difference between an inner join and an outer join?
  13. What is a trigger, and how can it be used in a database?
  14. Explain the difference between a view and a table.
  15. What is denormalization, and when would you use it?
  16. What is a database transaction, and how does it work?
  17. What is a foreign key, and why is it important in database design?
  18. What is a data dictionary, and how is it used in database management?
  19. What is a query optimization, and how can it be done in a database?
  20. What is the difference between a database and a database management system?
  21. Explain the concept of referential integrity in database design.
  22. What is a bitmap index, and when would you use it?
  23. What is a NoSQL database, and how does it differ from a traditional relational database?
  24. Explain the difference between a transaction and a batch in a database.

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