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SQL Lab

Practice SQL with real data. Start simple, build confidence.

Sample Dataset: Course Sales

Columns:

  • id - Unique sale ID
  • customer - Customer name
  • product - Course purchased
  • amount - Sale amount ($)
  • date - Purchase date
  • region - Customer region

Try These Queries:

SQL Editor

💡 Start simple: try SELECT * FROM sales LIMIT 5;

Results (8 rows)

idcustomerproductamountdateregion
1Alice JohnsonData Analytics Course$2992024-01-15North
2Bob SmithSQL for Managers$1992024-01-20South
3Carol DavisVisualization Workshop$3992024-02-01East
4David WilsonData Analytics Course$2992024-02-10West
5Eva BrownExecutive Communication$4992024-02-15North
6Frank MillerSQL for Managers$1992024-03-01South
7Grace LeeData Analytics Course$2992024-03-05East
8Henry TaylorVisualization Workshop$3992024-03-12West

SQL Learning Tips

🎯

Start Simple

Begin with basic SELECT statements before moving to complex joins and aggregations.

🧠

Think in Questions

Every query answers a business question. Ask "What do I want to know?" first.

🚀

Practice Daily

Your goal isn't to be a data engineer – just data fluent enough to ask better questions.