Does this tool validate Athena SQL syntax?

The tool focuses on formatting and prettification rather than full syntax validation. It handles standard SQL and Presto/Trino syntax patterns. For syntax validation, run the query with EXPLAIN in the Athena console to check for errors without scanning data.

Does it support Athena-specific syntax like UNNEST and UNLOAD?

Yes. The formatter recognizes Athena and Presto/Trino-specific syntax including UNNEST, UNLOAD, CREATE TABLE AS, MSCK REPAIR TABLE, and partition projection expressions.

AWS Athena Query Formatter

StorageAWS

Format and validate Athena SQL queries with partition projection helpers.

SQL Query Input

Raw Output

Output will appear here...

About This Tool

The Athena Query Formatter prettifies and formats Amazon Athena SQL queries for better readability. Athena uses Presto/Trino SQL syntax with extensions for querying data in S3, and complex queries with nested subqueries, CTEs, and partition predicates can become difficult to read without proper formatting. This tool applies consistent indentation, keyword capitalization, and line breaks to make your Athena queries cleaner for code reviews, documentation, and collaboration.

When to Use This Tool

•Format complex Athena queries with multiple CTEs and subqueries before including them in documentation or runbooks.
•Prettify auto-generated Athena queries from tools like QuickSight or AWS Glue for manual review and optimization.
•Clean up Athena queries copied from CloudTrail, ALB, or VPC Flow Log analysis templates for team sharing.
•Standardize SQL formatting across your team's Athena saved queries and named queries.

Frequently Asked Questions

Does this tool validate Athena SQL syntax?: The tool focuses on formatting and prettification rather than full syntax validation. It handles standard SQL and Presto/Trino syntax patterns. For syntax validation, run the query with EXPLAIN in the Athena console to check for errors without scanning data.
Does it support Athena-specific syntax like UNNEST and UNLOAD?: Yes. The formatter recognizes Athena and Presto/Trino-specific syntax including UNNEST, UNLOAD, CREATE TABLE AS, MSCK REPAIR TABLE, and partition projection expressions.

Disclaimer: This tool runs entirely in your browser. No data is sent to our servers. Always verify outputs before using them in production. AWS, Azure, and GCP are trademarks of their respective owners.