About SQL Query Optimizer
This tool analyzes SQL complexity and provides optimization suggestions with database context, table-size assumptions, and index guidance.
Key Features
- Context Config: DB type, table size, and custom row volume.
- SQL Utilities: Sample load, format, and clear.
- Cost Insights: Estimated cost, scanned rows, and time indicators.
- Suggestion Engine: Practical query rewrite recommendations.
- Index Guidance: Candidate indexing hints.
Steps
- Select database and data-size context.
- Paste SQL query.
- Run analysis and inspect metrics.
- Apply suggestions and re-evaluate.
Use Cases
- Initial slow-query investigation.
- SQL quality review assistance.
- Early performance-risk checks during development.
FAQ
Is this equivalent to real execution plans?
Not exactly. It is heuristic; use actual EXPLAIN/monitoring for final decisions.
Do I need to apply every suggestion?
Not always. Prioritize by workload impact and maintainability trade-offs.