Best MySQL Interview Questions And Answers

List of the Most Popular MySQL Interview Questions with Example Queries.

Here are the most Frequently asked basic and advanced MySQL interview questions and answers. A list of basic, as well as advanced level MySQL questions for freshers and experienced professionals, are explained in this article with necessary examples. 

  1. How to create a trigger in MySQL Explain with example ?
  2. How to delete the repeated records from a table in MySQL?
  3. How to write optimized query in MySQL?
  4. List some comparisons operators used in Mysql?
  5. What is the default port for MySQL and how it can change?
  6. Write a query to fetch duplicate records from a table using MySQL?
  7. What are storage engines and how data is stored in storage engines?
  8. What is the purpose of myisamchk in MySQL?
  9. Explain few pros and cons of MySQL?
  10. Can you tell the difference between ereg_replace() and eregi_replace()?
  11. Can you tell a way to know the number of days between the two given dates in PHP?
  12. Can you tell how many values can Set the function of MySQL to consider?
  13. How can you add and remove any column of a table?
  14. What are the conditions to safely use the index as a key?
  15. How can you change the password of a MySQL user?
  16. What is Database Black Box Testing?
  17. Can you tell what are the different set operations available in MySQL?
  18. What is Heap table?
  19. How many TRIGGERS are possible in MySql?
  20. What are indexes in a Database. What are the types of indexes?
  21. What is Data Warehousing?
  22. Explain MySQL transaction properties?
  23. Explain different types of MySQL functions?
  24. How to compare transaction and ACID properties?
  25. How to store myISAM in different formats?
  26. How to compare mysql_fetch_array and mysql_fetch_object?
  27. Write a few significant differences between TEXT and BLOB
  28. How to compare a primary key and a candidate key?
  29. Name a few drivers in MySQL
  30. How to compare CHAR and VARCHAR in MySQL?
  31. How to compare FLOAT and DOUBLE keywords in MySQL?
  32. How is MySQL better than Oracle?
  33. What do you understand by Heap Tables?
  34. What are the technical specifications of MySQL?
  35. How to compare MySQL and SQL?
  36. Explain different types of tables in MySQL?
  37. Explain the differences between delete, drop and truncate?
  38. Explain the main difference between InnoDB and MyISAM?

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Prem Tiwari

An engineer by profession and a passionate blogger by heart. Founder of FreeWebMentor.com (A Programming blog for beginners), Tech Speaker at various forums. A part from this he is an open source enthusiast, WordPress Lover, Blogger, SEO, and Growth Strategic.

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