SQL syntax validator

What is SQL validation?

SQL validation checks whether a query conforms to the grammar rules of a given SQL dialect. It catches syntax errors — misspelled keywords, unmatched parentheses, missing clauses — before the query ever reaches a database.

This is especially useful when you're writing queries outside of an IDE with built-in linting, such as in a wiki, documentation, Slack message, or script. A quick validation pass can save a round-trip to the database just to discover a typo.

When to use a SQL validator

• Checking queries written in a text editor, wiki, or chat before running them
• Validating SQL snippets in documentation or tutorials
• Sanity-checking generated or templated SQL before deployment
• Learning SQL — getting instant feedback on syntax without needing a live database
• Reviewing query changes in pull requests where you can't run them locally

Syntax checking vs semantic checking

This tool validates syntax — whether the query is grammatically valid SQL. It doesn't check whether the tables, columns, or functions you reference actually exist. For that you'd need a connection to your real database schema. Basedash does that automatically: it connects to your actual data sources and validates queries against your real schema as part of its AI-powered chart building.