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MySQL

DevSkiller prepares MySQL interview questions for recruiters who are looking to hire the best MySQL developers for their business. Our specialist IT experts design MySQL interview questions catered specifically to help with screening MySQL developers at junior, middle, and senior-level.

Data Science
JUNIOR
Tested skills
Duration
45 minutes max.
Evaluation
Automatic
Test overview

Task - Level: Easy

SQL | Stamps catalogue | The three highest prices - Select three stamps (price and name) with the highest price.

Programming task - Level: Easy

Python | Pandas | HTML table parser - Implement a function to convert HTML table into a CSV-format file.

DevOps
SENIOR
Tested skills
Duration
66 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of DevOps, Docker

DevOps task - Level: Hard

DevOps | Master of Disaster Recovery (CentOS) - Recover data from broken MariaDB/MySQL database.

DevOps
SENIOR
Tested skills
Duration
66 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of DevOps, Docker

DevOps task - Level: Hard

DevOps | Master of Disaster Recovery (Ubuntu) - Recover data from broken MariaDB/MySQL database.

MongoDB
MIDDLE
Tested skills
Duration
51 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of SQL, MongoDB, NoSQL

Code gaps

assessing knowledge of MongoDB

Task - Level: Medium

SQL | Customer Data - Find all the customers whose first and last names are not unique in this database, as well as the number of times each first and last name pair appears in the database.

MongoDB
SENIOR
Tested skills
Duration
56 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of SQL, MongoDB, NoSQL

Code gaps

assessing knowledge of MongoDB

Task - Level: Hard

SQL | Fill sparse table - Write a query that will return the list of all users with the creation date and return the date from the previous not-null row for the entries affected with the bug.

MongoDB
JUNIOR
Tested skills
Duration
27 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of SQL, MongoDB, NoSQL

Code gaps

assessing knowledge of MongoDB, SQL

Task - Level: Easy

SQL | Stamps catalogue | CASE statement - Make a select statement, by which you will divide your stamps collection into 3 groups.

MIDDLE
Tested skills
Duration
40 minutes max.
Evaluation
Automatic
Test overview

Choice questions

assessing knowledge of SQL, MySQL

Task - Level: Medium

SQL | Customer Data - Find all the customers whose first and last names are not unique in this database, as well as the number of times each first and last name pair appears in the database.

DevSkiller uses RealLifeTestingTM to offer a unique approach to developer recruitment. This one-of-a-kind testing methodology uses a simulated reality in order to challenge developers with realistic tasks and offer a detailed insight into how well they perform. Quicken up your recruitment process with DevSkiller’s MySQL interview questions.

Recommended roles for MySQL interview questions

  • Junior MySQL developer
  • Middle MySQL developer
  • Senior MySQL developer
  • Software engineer
  • SQL Server developer
  • Systems administrator
  • Quality assurance analyst
  • SQL Server Database Administrator

How our MySQL interview questions work

DevSkiller MySQL interview questions are powered by the RealLifeTestingTM methodology. RealLifeTestingTM is based on the idea that to accurately assess a developer’s skills, you need to present them with challenges similar to the development work they actually do. Seems obvious right? Up until now, developer testing has focused on challenging developers by asking them to recite coding patterns and algorithms that they don’t use in their everyday work. Understandably this can be frustrating for developer candidates who don’t feel like they are given the chance to really demonstrate what they can do. Devskiller MySQL interview questions are changing this. We offer recruiters an opportunity to see how each candidate copes with realistic challenges that reflect their actual work environment. Candidates are assessed on their coding ability, their time-management, and their quick-thinking skills.

Key features of our MySQL interview questions

  • Test candidates’ coding skills, not just their academic knowledge
  • Observe MySQL interview questions in real-time
  • RealLifeTestingTM methodology offers a greater user experience where candidates can use their own IDE, clone to Git, run unit tests, and access Stack Overflow/GitHub/Google for research
  • Several anti-plagiarism tools to ensure test accuracy
  • Automated results that non-technical professionals can understand
  • MySQL interview questions available for developers of all levels

Skills covered in our MySQL interview questions

  • CentOS
  • MariaDB
  • MySQL
  • SQL
  • Data analysis
  • HSQLDB
  • MongoDB
  • MS SQL
  • NoSQL
  • Oracle
  • PostgreSQL
  • data science

What to look for in a MySQL developer

If you are hiring a MySQL developer you will need to know which special skills to look out for. SQL is a very popular Fourth Generation Programming Language (4GL). It is often also embedded in more general-purpose programming languages like Java, in order to access data from central databases.

The vast majority of MySQL performance-related issues can be solved by proper indexing, so it is vital your developer be skilled in this area.  Understanding where use of an index will be beneficial is essential for any good MySQL developer.

SQL has evolved a lot during the past decades so you will need someone who is up to date. Various features have been implemented to make the SQL language easier to manage. Set theory is important as it allows developers to perform bulk operations on entire data sets, directly in the database. You will want your developer to know about this. An understanding of window functions and CTE will also be helpful.

Build your own custom MySQL interview questions

Want to get more out of MySQL interview questions? The DevSkiller task wizard allows you to customize your MySQL interview questions and tailor them exactly how you like. If you want to change the language being tested, the length of each test, or even the allotted time given for each individual question, then this is all possible. There are loads of great features available to properly customize MySQL interview questions and suit them to complement your business.

Want proof that our MySQL interview questions work?

Knowing where to assign the finances of your company most effectively can be a big responsibility. It is understandable to want to have a little assurance. Here is what our past customers have had to say:

Victoria Cyczewska – Talent Acquisition Specialist at Stepstone Services

“We now have a tool which allows us to not only collaborate to create tests assessing technical skills we need to grow, but also to communicate internally and externally (with candidates). What is more, our technical recruitment process is now more structured. As an example, we use our technical screening results as a conversation starter during technical interviews.”

Olga Berger – Lead Recruiter & Sourcing Specialist at CodeValue

“DevSkiller is easy to use and friendly.”

Magdalena Rogóż – Deputy Marketing Manager at Kodilla

“Using DevSkiller to grade tests is 2 times more cost-efficient while giving our students a much better test and preparing them for future recruitment tests.”

Frequently asked questions

What is RealLifeTestingTM?

RealLifeTestingTM is an opportunity to take recruitment screening to the next level. It is an advanced testing methodology that recreates a simulated version of a developer’s work environment and it forms the basis of all DevSkiller MySQL interview questions.

RealLifeTestingTM offers recruiters in-depth insight into a developer’s MySQL skills, one that is unattainable from traditional testing methods. It allows the accuracy of developer testing to be increased, without increasing the time needed for testing.

DevSkiller MySQL interview questions require candidates to build full project apps, add features to existing apps, and write code, just like they will be required to within the role. Candidates need to show their knowledge of resources like Stack Overflow, demonstrate their coding skills, and implement problem-solving solutions.

How are MySQL interview questions evaluated?

Devskiller testing is designed to make your recruitment process as simple as possible, which means we have automated our evaluation process to give you less to do. Once a candidate is finished with their test, the DevSkiller platform automatically gets to work on the results. Candidates are evaluated on the solutions they offer to problems, the amount of errors in their code, and the quality of the code. Results are formulated into an easy to understand report that even non-technical recruiters will be able to easily understand.

How do candidates take a test?

The benefit of DevSkiller MySQL interview questions is that they can be accessed remotely and taken from anywhere in the world. This saves hours of time spent on in-house testing.

Candidates receive test invites via email and can start their assessments at a time convenient to them. If they like, the recruiter can observe tests being taken in real-time.

For the tests themselves, candidates have the option to use DevSkiller’s state of the art in-browser IDE. If they prefer they can use their favorite IDE and clone the project to GIT.

Throughout the tests candidates can also run unit tests to make sure their solutions work the way they are intended to.