SQL Reserved Word Checker

How to use this developer tool

1. Paste the SQL, text, or JSON sample.
2. Set the table, dialect, or safety options shown for this tool.
3. Run the tool and read the processing note.
4. Copy the result only after checking it against your schema and database version.

What this developer tool does

The output is the browser-generated result for sql reserved word checker. No statement is executed and no schema is inspected. Counts describe detected or generated items, not database rows affected.

Treat generated SQL as a draft. Test it inside a transaction or against a disposable database first.

Example

Load the built-in sample and click Check Words. The output shows the exact transformation and the result note identifies the important review point.

SELECT id, order, group FROM user WHERE order > 10;

Use cases

• Preparing SQL during code review
• Comparing vendor syntax before a migration
• Creating reproducible examples for documentation
• Spotting unsafe assumptions before database testing

Tips for reliable output

• Select the same dialect and version used by the target system.
• Keep a backup before running generated DDL or DML.
• Use parameters for runtime values in application code.
• Check quoted names and reserved words carefully.
• Review NULL, date, Boolean, and Unicode behavior.

Processing details

All processing runs in the current browser tab. The tool uses focused rules rather than connecting to a SQL parser service, catalog, optimizer, or execution engine.

Procedural SQL, nested vendor extensions, comments inside unusual quoting modes, and version-specific features may require a full database parser. The page never claims that generated SQL is executable on every server.