Databases Interview Questions for Freshers
Preparing for your first Databases interviews? This set is curated for freshers and early-career developers (0–2 years): the 27 questions that come up most for entry-level roles, each with a clear answer, example code and follow-ups.
27 Databases questions
- 1Difference between Optimistic and Pessimistic Locking.Intermediate
- 2What is the CAP Theorem?Intermediate
- 3What is a View and why use it?Intermediate
- 4Explain the concept of 'Deadlock' in DB transactions.Intermediate
- 5What is Database Sharding?Intermediate
- 6What are Database Triggers and Stored Procedures?Intermediate
- 7Explain the difference between Clustered and Non-Clustered Indexes.Intermediate
- 8What is an Execution Plan?Intermediate
- 9SQL vs NoSQL: When to choose which?Intermediate
- 10Explain Database Transactions and Isolation Levels.Intermediate
- 11What is a NULL value in SQL?Beginner
- 12What is a Database Schema?Beginner
- 13Explain the difference between WHERE and HAVING clauses.Beginner
- 14What is an Index in a database?Beginner
- 15What are Joins in SQL?Beginner
- 16Difference between DELETE, TRUNCATE, and DROP.Beginner
- 17What is Database Normalization?Beginner
- 18What is a Primary Key and a Foreign Key?Beginner
- 19Explain the ACID properties in Databases.Beginner
- 20What is the difference between DBMS and RDBMS?Beginner
- 21Databases Interview Question 1 (Free)Beginner
- 22Databases Interview Question 5 (Free)Intermediate
- 23Databases Interview Question 4 (Free)Beginner
- 24Databases Interview Question 2 (Free)Intermediate
- 25Databases Advanced Interview Question 8Intermediate
- 26Databases Advanced Interview Question 7Beginner
- 27Databases Advanced Interview Question 10Beginner
Explore more Databases interview questions
Or browse all Databases interview questions.
Frequently asked questions
Which Databases questions do freshers (0–2 years) get asked?
This page collects 27 Databases interview questions aligned with freshers (0–2 years), ranging across the difficulty levels that match that experience band.
How do I prepare for a Databases interview with my experience level?
Work through these questions in order, make sure you can explain each answer out loud, and pay attention to the real-world examples and follow-ups — interviewers at this level care as much about reasoning as the final answer.
Do the answers include code and examples?
Yes — answers include explanations, code examples where relevant, common mistakes to avoid and follow-up questions so you are ready for the full interview conversation.