Advanced
Advanced: mock & diagnostics
Optional tools for testing and troubleshooting. Not part of the day‑one learning path.
Overview
These tools help reproduce issues and validate fixes. Reach for them when you're debugging — not when you're learning the product.
Mock JSON runner
Place a mock.json file in your workspace describing requests and expected results, then run SQL: Run Mock JSON. SQLLens.AI validates each case and reports diffs.
Mock table generator
Run SQL: Generate Mock Table to create a sample table populated with realistic test data. Useful for tutorials, demos and reproducible bug reports.
Diagnostic queries
Run mysql.diagnostics.show to open the diagnostics palette — the same one available from Performance Monitor.
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