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Practice your skills solving real life challenges in an interactive, real-life Data Science simulator. Online Open/Save SQLite file. After completing this SQL quiz, you'll receive: In today's data-driven world, SQL skills are in high demand. For that, going forwards at least, I’d suggest turning on scrobbling to LastFM, which definitely lets you get at that data. To do all three of those, you’re gonna need some data. What is SQL? SQL, or Structured Query Language, is a language designed to allow both technical and non-technical users to query, manipulate, and transform data from a relational database. 15. Request demo. SQL skills using live coding tasks that require writing CRUD operations in order to extract, combine, and manipulate data. Get started for free In this article we list some of the best free SQL resources available to help you get started and take SQL for Data Analysts Great for people who want to master advanced SQL topics. 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