Learn SQL through easy-to-follow, interactive tutorials. Created by Alisdair Owens PGExercises provides a series of questions and explanations built on a single, simple dataset. It’s designed for use as a partner to a good book or Postgres’ excellent documentation. Exercises range from simple select and where clauses, through joins and case statements, and on to aggregations, window functions, and recursive queries.
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PostgreSQL Exercises
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