Relational Studio
Realistic multi-table generation, referential integrity verification, and SQL join sandbox.
21 interlinked retail tables: orders, customers, variants, warehouses, inventory, payments, and shipments.
Table Inspector
Select any table to inspect fields & foreign keysSQL Join Sandbox & Interactive Challenges
Execute SQL queries directly against the in-memory relational graph. Practice INNER JOIN, LEFT JOIN, and aggregations.
Top Customers by Delivered Spend (INNER JOIN & Aggregation)
Find top customers by total completed order value, excluding cancelled or processing orders.
