SQL Formatter vs SQLCheck

SQL Formatter is a free, MIT-licensed JavaScript library for pretty-printing SQL queries, with a browser demo and command-line tool. Formatting options include indentation; keyword, data type, function, and identifier case; logical operator placement; expression width; query spacing; and operator spacing. It supports dialects including BigQuery, ClickHouse, DB2, DuckDB, Hive, MariaDB, MySQL, TiDB, Couchbase N1QL, Oracle PL/SQL, PostgreSQL, Redshift, SingleStoreDB, Snowflake, Spark, SQL Server Transact-SQL, and Trino/Presto. The command-line tool accepts SQL from standard input or a file, can produce formatted output, and can update a file in place. The project also lists VS Code and Vim extensions, a Prettier plugin, and an ESLint integration. Its JSON Schema supports configuration-file autocompletion and IntelliSense, with usage guides for VS Code and Zed. The library can replace prepared-statement placeholders when parameter values are supplied. It does not support stored procedures or changing the delimiter from a semicolon. Templating syntax is not directly supported; a parameter-type workaround may not cover every construct. The maintainer describes the project as being in maintenance mode, with feasible bug fixes and likely no new features.

SQLCheck is a free command-line utility that scans SQL files for common anti-patterns associated with slow queries. It groups findings into logical database design, physical database design, query, and application development categories. Users can choose to check all patterns, medium- and high-risk patterns, or only high-risk patterns. The command line accepts a SQL file name and offers color and verbose output modes. The project identifies Microsoft SQL Server, MySQL, Oracle, PostgreSQL, and SQLite3 as supported dialects, and says it targets all major SQL dialects. Downloads are listed for Debian, RPM, macOS DMG, Windows EXE, and ZIP. Release notes for v1.3 list line numbers and a status code of 1 when anti-patterns are found. SQLCheck does not automatically fix findings and has no editor extensions or configuration file. Source-build instructions name g++ 4.9 or later and CMake. The repository identifies the license as Apache-2.0 and welcomes issues, pull requests, and documentation contributions.