Playground · Databases 
A real PostgreSQL 16 sandbox in sixty seconds.
PostgreSQL 16 with psql. CTEs, window functions, JSONB, EXPLAIN ANALYZE — on a real server.
Open the PostgreSQL 16 sandbox No account, no card, no install. Sixty minutes, extendable.
Playgrounds / PostgreSQL 16psql60 min · extendable
What you can try
- Write a recursive CTE
- Use window functions for running totals
- Query JSONB with operators and an index
- Read EXPLAIN ANALYZE and fix a slow query
No guided steps in a playground — it's yours to explore. When you want tasks and a verifier, the related labs below are the next step.
✓ sandbox allocated 0.4 s
✓ environment started
✓ terminal ready 38 s
You clicked Start. Sixty seconds later you're typing into something real.
Related labs
When you want tasks and a verifier.
The same PostgreSQL 16 environment, with a sequence of checked tasks and a certificate at the end. All courses →
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