SQL Practice PRO - Learn SQL Databases 
This app lets you seamlessly practice your SQL SELECT skills across a variety of questions with increasing difficulty. Queries are a breeze to write with autocomplete, you can view/copy the answer, and the app smartly evaluates the result, not your query, as there are many ways to solve any SQL query!
415,000+ downloads on Google Play with a 4.7+ rating after 6,700+ reviews2 years ago
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