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SQL - Fundamentals Quiz / Test

SQL Tests with answers to test your skills and prepare for your job interviews. Evaluate your technical skills in 20 minutes.

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3.2/5(3)
23 questions
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Our SQL technical test is designed to evaluate the skills of developers in SQL. This test consists of a series of multiple-choice questions that cover various topics in SQL, including basic querying, aggregation, and table manipulation.

The test contains a total of 12 questions, each containing an example of a SQL query and a set of four possible answers. The questions are of varying difficulty, with some requiring only basic SQL knowledge, while others require a more advanced understanding of the language.

Through this test, we aim to assess the developer's ability to work with relational databases and SQL, which is a critical skill for any software developer. The test also helps developers to identify their strengths and weaknesses in SQL and work on improving their skills accordingly.

The 5 main competencies tested in this SQL technical test include:

  • Basic SQL querying: the ability to write basic SQL queries to retrieve data from a table
  • Aggregation: the ability to use SQL aggregate functions such as COUNT, SUM, AVG, and MAX to perform calculations on a table
  • Table manipulation: the ability to manipulate tables by adding, updating, and deleting data
  • Joins: the ability to join two or more tables using different join types, such as INNER JOIN and OUTER JOIN
  • Subqueries: the ability to use subqueries to retrieve data from a table based on a condition.

By testing these competencies, we hope to provide developers with a comprehensive assessment of their SQL skills and help them to identify areas where they need to improve.

Leaders
  • 1.
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    Maxime Rogues(3383)
  • 2.
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    Vincent(3330)
  • 3.
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    Nathalie(3330)
  • 4.
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    Khoa(3289)
  • 5.
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    Anne(3239)
Test author: Vincent Cotro

This test was designed by the WeLoveDevs.com tech team.
We have gathered our knowledge and experience in the professional world to bring it to you.
In a nutshell, our team is made up of junior and experienced engineers and developers!

Become a contributor to our SQL - Fundamentals quiz ! WeLoveDevs.com's quiz are collaborative and everyone can contribute ! You have an idea for the SQL - Fundamentals correction? Submit a new question or a correction, we'll credit you in the authors list and you'll get points to unlock questions corrections!

Developers reviews

Florian Daniel
05/10/2023🇫🇷
Plusieurs questions zappées en raison d'un clic droit malencontreux, ce qui annule la question :-s
05/05/2023🇫🇷
temps un peut court pour des réponse longues
Yann
04/20/2023🇫🇷
Certains tests demandent beaucoup de lecture et donc le temps peut être juste.
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