SQL Practice

Real-life business problems on real tables. Read the scenario, write the query, and get it checked instantly.

All topics SELECT & Filtering Sorting & Limits Aggregation Joins String & Date Functions Window Functions Subqueries NULL & CASE CTEs & Recursion Set Operators Analytics Patterns

All levels Basic Intermediate Expert

How many orders were cancelled?

Aggregation

Solve challenge

Which sales channel loses the most orders?

Aggregation

Solve challenge

How healthy is the loan book?

Aggregation

Solve challenge

Where does the payroll sit?

Aggregation

Solve challenge

Zoomi city revenue scoreboard

Aggregation

Solve challenge

Where do our listeners live?

Aggregation

Solve challenge

Intermediate25 pts

Which plan do customers walk away from?

Aggregation

Solve challenge

Seller scoreboard: three half-years side by side

Aggregation

Solve challenge