Theodinproject.com
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Roadmaps.sh
Roadmaps roadmap.sh is a community effort to create roadmaps, guides and other educational content to help guide developers in picking up a path and guide their learnings.
Runsql.com
Runsql
SQLBolt
SQLBolt, a series of interactive lessons and exercises designed to help you quickly learn SQL right in your browser.
SQL Teaching
SQL Teaching In SQL, data is usually organized in various tables. For example, a sports team database might have the tables teams, players, and games. A wedding database might have tables guests, vendors, and music_playlist.