# db-parser: Process message content with a pattern database (patterndb)

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[Classifying log messages](../../docs/axosyslog-core/chapter-parsers/chapter-patterndb/concepts-pattern-databases/index.md)

[Using pattern databases](../../docs/axosyslog-core/chapter-parsers/chapter-patterndb/configuring-pattern-databases/index.md)

[Triggering actions for identified messages](../../docs/axosyslog-core/chapter-parsers/chapter-patterndb/patterndb-triggers-actions/index.md)

[Creating pattern databases](../../docs/axosyslog-core/chapter-parsers/chapter-patterndb/reference-parsers-pattern-databases/index.md)

Last modified July 31, 2023: [Makes parsers chapter subsections alphabetic (b5cce39)](<https://github.com/axoflow/axosyslog-core-docs/commit/b5cce3909bee6ccfb29906268174bf38ebb3287c>)