Practise · Real PostgreSQL
SQL lab
Use real SQL to complete a guided task in a temporary PostgreSQL database. Your lab is isolated from every other learner and is removed when you finish or when it expires.
Your goal
Recommend an index that improves the supplied workload while explaining its write and storage cost.
What to do
- Start your temporary database.
- Read the task and run SQL in the workspace.
- Check your work. The server will inspect the database state.
- When every task passes, continue to the assessment.
Managed PostgreSQL workspace
Real SQL lab
An operations screen repeatedly finds recent open jobs for one customer and has become slow as the table grows.
Your database is temporaryIt is private to this lab and deleted when you finish or it expires.
Goal
Add an index that matches a real filter and ordering pattern, then prove PostgreSQL can use that access path.
Start when you are ready. Creating your private database can take a few seconds. You do not need a Neon account.