SQL Enlight vs Squawk

SQL Enlight is a static analysis and refactoring tool for SQL Server and T-SQL. It examines code and databases for defects and supports server health monitoring, diagnosis, and performance tuning. Developers can validate syntax, run automated reviews, and apply automatic fixes to some code and database issues. Formatting, script summaries, and outlines help make large scripts easier to work with; sections can also be extracted into stored procedures or functions. Developers and database administrators can create custom analysis rules with XPath and XSLT. The tool integrates with SQL Server Management Studio and Visual Studio, and supports build workflows through Team Foundation Server check-in policies, MSBuild tasks, a command-line interface, and an Automation API. Its Azure DevOps extension supports build analysis, quality gates, reports, and pull-request checks and comments; a SonarQube plugin adds T-SQL issues, measures, rules, and quality-gate integration. SQL Enlight supports SQL Server 2005 through 2022, including Azure SQL Database. The paid product has a 14-day evaluation period. Licenses include email support, updates, and documentation access.

Squawk is an open-source linter and language server for PostgreSQL migrations and SQL. It checks schema changes for risks that could prevent database reads or writes. Its rules flag potentially unsafe statements, incompatible changes, and migration patterns, with messages that include examples and reasoning. The command-line tool lints SQL files, and a language server and VS Code extension provide editor linting.

For pull requests, a GitHub Action can lint modified migrations; Squawk can also comment through its upload-to-github command or GitHub App. For CI outside GitHub Actions, the documentation recommends configuring the GitHub App, citing CircleCI as an example. Installation options include npm, PyPI, release binaries, Docker, the browser playground, and VS Code. The playground uses WebAssembly to lint SQL in a browser. Configuration can set the PostgreSQL version, include or exclude rules and paths, and specify whether SQL files are assumed to run in transactions. Some rules are disabled by default and require explicit enabling. Squawk supports PostgreSQL only and has no automatic fixes or custom rules.