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
Resolve connection exhaustion without masking a leak or setting a memory budget the host cannot sustain.
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
A reporting query needs more work memory, but raising the global setting could multiply memory use across every connection.
Your database is temporaryIt is private to this lab and deleted when you finish or it expires.
Goal
Measure connection and memory settings, then make a scoped session change without altering the whole server.
Start when you are ready. Creating your private database can take a few seconds. You do not need a Neon account.