SQL Practice
Real-life business problems on real tables. Read the scenario, write the query, and get it checked instantly.
Intermediate25 pts
Podium finish: top 3 products per category
Window Functions
Solve challengeIntermediate25 pts
Month-over-month revenue rollercoaster
Window Functions
Solve challengeIntermediate25 pts
Rebuild the balance of account 15
Window Functions
Solve challengeIntermediate25 pts
The top scorer of every club (ties included)
Window Functions
Solve challengeIntermediate25 pts
The longest silence between two flights
Window Functions
Solve challengeIntermediate25 pts
Peak-hour demand ranking in every city
Window Functions
Solve challengeIntermediate25 pts
Top 3 genres in every country
Window Functions
Solve challenge