SQLFluffThe SQL Linter for Humans

Dialect-flexible and configurable SQL linter

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Dialect Flexible

Supports 25+ SQL dialects including T-SQL, PostgreSQL, BigQuery, Snowflake, and more

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Automatically fix many linting violations with a single command

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Comprehensive linting rules covering style, structure, and best practices

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Extensive configuration options to match your team's coding standards

sql

-- Before linting
SELECT a,b  FROM my_table

-- After sqlfluff fix
SELECT
    a,
    b
FROM my_table

Install SQLFluff with pip:

bash

pip install sqlfluff

Lint your SQL files:

bash

sqlfluff lint my_query.sql

Auto-fix issues:

bash

sqlfluff fix my_query.sql