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Testeur SQL Regex

Test SQL REGEXP patterns against sample data across different database dialects. See how each dialect interprets your pattern differently.

SQL Regex Tester
Test Strings (one per line)
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How to use SQL Regex Tester

  1. Enter your REGEXP pattern.
  2. Add test strings (one per line).
  3. View matches for each SQL dialect.
  4. Compare behavior differences across databases.

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A SQL regex tester lets you test regular expression patterns as they would behave in different SQL databases. Each database engine (MySQL, PostgreSQL, SQLite, MSSQL) has slightly different regex syntax and behavior.

This tool shows you how your pattern performs across all four dialects simultaneously, highlighting differences in matching behavior. It's invaluable for writing cross-database compatible queries.

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FAQ

Why do results differ between databases?
Each database uses a different regex engine with different syntax. For example, MySQL uses Henry Spencer's regex, while PostgreSQL uses POSIX regex.
Can I test LIKE patterns too?
Yes — the tool supports both LIKE and REGEXP/RLIKE pattern syntax.

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Author

MW
Marcus Webb"The DevTool Craftsman"

Full-Stack Developer & Tools Architect

Marcus has been writing code since the dial-up era. He's contributed to open-source developer tools and built CI/CD pipelines for startups.

📖 SQL Regex Tester on Wikipedia · Database Tools on Wikipedia · SQL Regex Tester on Britannica

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