Advanced SQL Practice Exercises

Challenge yourself with free advanced SQL exercises covering window functions, CTEs, correlated subqueries, EXISTS, multi-table JOINs, and complex filtering logic. Each question includes an instant answer check and a worked solution.

Table Schema

Table:
Columns:

Task

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These advanced SQL exercises are designed for learners who are comfortable with the basics and want to tackle professional-level query writing. Topics include window functions like ROW_NUMBER and RANK, Common Table Expressions (CTEs), correlated subqueries, EXISTS and NOT EXISTS, multi-table JOINs, and data quality filtering. Ideal for experienced developers and data analysts preparing for technical interviews.