MYSQL Interview Questions & Answers

Important Questions for MYSQL Interview Preparation

Jul 2, 2025 - 16:12 Updated: Jul 14, 2025 - 03:27
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MYSQL Interview Questions & Answers
MYSQL Interview Questions & Answers

MYSQL Interview Questions & Answers free download

Important Questions for MYSQL Interview Preparation

Welcome to the MySQL interview and answers course ! Are you ready to take your interview preparations skills and career to the next level?

This course will prepare you for the 40 plus most asked difficult / easy MySQL interview questions. Each questions is answered with practical example and shown how to frame your answer, so we will learn the answers to 40 plus most asked questions in total! and updating more !

This course will help you to understand and know how to answer most difficult questions like on Transactions, Triggers, MySQL Joins, Stored Procedures, Functions, Database Normalization and so on.

If you are looking to boost your career to next level or looking for MySQL jobs, this course will help you to strengthen your skills and to connect the dots like how to rightly answer to the point with practical example.

Also, a free e-book is provided, with all questions and answers from the course compiled together.

So, why hesitate? Join me in this course and ace your next interview!


Explain Normalization, Denormalization, Normal Forms in MySQL, Trigger & Joins.

  • Question 1 : Explain Normalization & Denormalization?

  • Question 2 : Explain 1st,2nd and 3rd Normal Form in MYSQL Database Normalization?

  • Question 3 : Primary Key vs Foreign Key?

  • Question 4 : Primary Key vs Candidate Key vs Unique Key?

  • Question 5 : What is a trigger? How you can create a trigger in MYSQL?

  • Question 6 : Explain Transactions and How to Implement it in MYSQL?

  • Question 7 : What is an index? How can an index be declared in MYSQL?

  • Question 8 : What is the view? How can you create and drop view in MYSQL?

  • Question 9 : Explain Inner Join?

  • Question 10 : Explain Left Join?

  • Question 11 : Explain Right Join?

  • Question 12 : Explain Cross Join?

  • Question 13 : MYSQL Union vs Union All?

  • Question 14 : What are MYSQL Aliases?

  • Question 15 : Explain MYSQL Subquery?

  • Question 16 : Blob vs Text data types in MYSQL?

  • Question 17 : CHAR vs VARCHAR data types?

  • Question 18 : What are the differences between InnoDB and MyISAM engines?

  • Question 19 : What are some of the common MYSQL COMMANDS?

ENUM in MySQL, GRANT Command, TRUNCATE vs DELETE in MySQL

  • Question 20 : What are aggregate functions in MYSQL?

  • Question 21: How can ENUM be used in MySQL?

  • Question 22:Explain GRANT Command in MySQL?

  • Question 23:What is the difference between Truncate and Delete?

What are Stored Procedure & Stored Function in MySQL?

  • Question 24 :- Explain MySQL Stored Procedures ?

  • Question 25 :- Explain MySQL Stored Function ?

  • Question 26 :- MySQL - Stored Procedures VS Stored Function

What is self-referencing foreign key, LIKE vs REGEXP Operators, query cache.

  • Question 27 :- What is self-referencing foreign key?

  • Question 28 :- What is the difference between the LIKE and REGEXP Operators?

  • Question 29 :- How does query cache work in MySQL?

Questions on SAVEPOINT statement, import/export work in MySQL, IFNULL & ISNULL

  • Question 30 :- Explain the SAVEPOINT statement in MySQL Transactions?

  • Question 31 :- How does database import or export work in MySQL?

  • Question 32 :- Explain difference between IFNULL & ISNULL functions in MySQL?

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