SQL injection is still one of the most dangerous web application risks — and one of the hardest to test thoroughly by hand.

The Invicti SQL Injection Cheat Sheet gives security teams a practical reference for testing SQL injection across MySQL, Microsoft SQL Server, Oracle, PostgreSQL, and SQLite.

In this report, you’ll learn:

• How SQL injection works across different databases and query contexts
• Common payloads for MySQL, SQL Server, Oracle, PostgreSQL, and SQLit
• Techniques for UNION-based, error-based, blind, and second-order SQL injection
• How attackers use comments, stacked queries, string operations, and timing delays
• Why manual SQLi testing can’t realistically cover every payload, encoding, and injection path
  

Whether you’re validating findings, improving secure coding practices, or scaling SQLi testing across modern web apps and APIs, this cheat sheet gives you a practical reference for understanding SQL injection risk and closing the gaps manual testing can’t cover.