What is the best website to practice SQL queries for interview?

Several websites offer SQL query practice specifically tailored for interviews, helping you prepare for SQL-related interview questions. Here are some popular options:

1. LeetCode: LeetCode is a well-known platform for practicing coding interview questions, including SQL problems. It provides a dedicated section for SQL problems, where you can solve challenges commonly asked in technical interviews. LeetCode offers a variety of SQL problems categorized by difficulty level, making it an excellent resource for interview preparation.
2. HackerRank: HackerRank features a comprehensive SQL domain with challenges designed to help you practice SQL queries for interviews. It covers various SQL concepts, including basic queries, joins, aggregations, subqueries, and more. HackerRank also provides interview preparation kits with curated sets of SQL problems to help you sharpen your skills for technical interviews.
3. Interview Query: Interview Query offers a collection of SQL interview questions asked by top tech companies. It provides detailed solutions and explanations for each question, helping you understand the thought process behind solving SQL problems. Interview Query's SQL questions cover a wide range of topics commonly encountered in technical interviews.
4. StrataScratch: StrataScratch offers a platform for practicing SQL and coding questions commonly asked in data science and analytics interviews. It provides a library of SQL interview questions from real companies, along with detailed solutions and explanations. StrataScratch's SQL questions cover advanced topics such as window functions, common table expressions (CTEs), and advanced joins.
5. Pramp: Pramp is a peer-to-peer platform for practicing technical interviews, including SQL interviews. It offers mock interview sessions where you can practice SQL problems with a peer or a mentor. Pramp's interview sessions simulate real interview scenarios, helping you improve your problem-solving skills and gain confidence for SQL interviews.
6. Gainlo: Gainlo provides mock interviews and interview preparation resources for software engineering and data science roles, including SQL-related interviews. It offers a collection of SQL interview questions asked by top tech companies, along with detailed solutions and tips for interview success.

These websites offer a range of SQL interview questions, solutions, and mock interview sessions to help you prepare effectively for SQL-related interviews. Practicing SQL queries on these platforms can improve your problem-solving skills, boost your confidence, and increase your chances of success in technical interviews.

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