WrongQuery

WrongQuery reviews a single SELECT or WITH query and flags SQL patterns that can silently distort results. It highlights issues like NULL comparisons, filters that change joins, and unstable limits, then suggests what to verify next. Basic Check runs locally in your browser with no account, while Deep Check adds more rules after you approve a masked copy. Choose your database dialect, paste a query, and get a focused review without connecting to your data.

Try the built-in example with the free Basic Check, then email me at [email protected] with your feedback. Thanks, George.