sqluniversity.org is now
sqluniversity.org is a work in progress... Stay tuned!
We want to build a comprehensive SQL Tutorial freely available and accessible to everybody.
In the meantime, check out our parent project: DataWars, a platform to practice SQL, Database administration, Data Analysis and Data Science with interactive, ready to use, projects.
DataWars also can be used as a free replit for education alternative. Check it out here: DataWars for education
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