SQL Optimizer
Paste a query and see the patterns that make it slow, why each one costs you, and what to change instead. Runs in your browser.
Paste a query and get the patterns that commonly cost performance, with an explanation of why each one matters. Static analysis in your browser; your query is never transmitted.
Pattern matching, not a query planner. It cannot see your indexes, statistics or data volumes. Always confirm against a real execution plan.
It runs entirely in your browser and nothing you type is transmitted or stored. The output is indicative and derived from your own inputs, so it is only as good as they are. It is educational material, not professional, financial, legal or tax advice, and it is not an audit, a quote or a substitute for review by someone who can see your actual environment.
- Data Engineering Knowledge Hub
- Oracle Knowledge Hub