MySQL Query Checker

This tool analyzes MySQL queries to identify syntax errors, version-specific issues, and basic semantic mismatches before execution. It targets database developers, data engineers, and QA teams drafting SELECT, INSERT, UPDATE, DELETE, or DDL statements and migrating schemas. Conceptually, the checker tokenizes input, applies a MySQL grammar subset, and reports violations with precise locations. It can optionally compare references against a provided schema snapshot to surface invalid table or column names. By separating required syntax checks from optional schema and version checks, teams can gain early feedback without relying on a live database. Core value comes from reducing failed runs, catching compatibility problems across MySQL versions, and delivering actionable suggestions that speed up debugging. Typical use cases include code reviews, migration planning, and pre-deployment validation of complex queries. The tool emphasizes correctness and compatibility over optimization, offering structured error data and guidance for fixes. Distinct from runtime analyzers, it cannot verify data contents or performance. It scales from single statements to batches, helping individuals and teams maintain SQL quality across MySQL projects.