70+ SQL Interview Questions Every Data Scientist Should Know
Last Updated on August 29, 2025 by Editorial Team
Author(s): Ajit
Originally published on Towards AI.
70+ SQL Interview Questions Every Data Scientist Should Know
SQL is a cornerstone skill for any data scientist. In interviews, you’ll be tested on both your ability to write correct queries and your deep understanding of how they execute. This article walks through over 70 essential SQL questions — ranging from basics to advanced topics — each with a clear answer.
The article provides an extensive collection of over 70 SQL interview questions tailored for data scientists, covering a range of topics from basic SQL operations to performance tuning and best practices. It includes examples and answers for each question, designed to enhance the reader’s understanding and preparation for SQL-related interviews.
Read the full blog for free on Medium.
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