---
title: "SQL Server Professional: System-Supplied Trace UDFs"
url: "https://osherove.com/blog/2003/9/7/sql-server-professional-system-supplied-trace-udfs.md"
canonical: "https://osherove.com/blog/2003/9/7/sql-server-professional-system-supplied-trace-udfs.html"
published: "2003-09-07T04:03:00"
updated: "2003-09-07T04:03:00"
tags: ["Cool Articles"]
author: "Roy Osherove"
description: "Most of you have probably created your own SQL Server user-defined functions (UDFs), but did you know that Microsoft ships a fair number of its own UDFs, especially in the most recent SP3? In this article, Baya…"
usage: "Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page)."
license: "https://creativecommons.org/licenses/by/4.0/"
---

# SQL Server Professional: System-Supplied Trace UDFs

By Roy Osherove September 7, 2003 In [Cool Articles](https://osherove.com/blog/category/cool-articles)

**Historical article** · Originally published September 7, 2003; technical details may be outdated.

_Most of you have probably created your own SQL Server user-defined functions (UDFs), but did you know that Microsoft ships a fair number of its own UDFs, especially in the most recent SP3? In this article, Baya Pavliashvili and Kevin Kline explore a subset of them that are related to traces._

\[[MSDN Just Published](http://msdn.microsoft.com/rss.xml)\]

Here's the [full article on MSDN](http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsqlpro03/html/sp03h1.asp).

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---

## About the author

**Roy Osherove**: Senior Solutions Architect at AWS working on AI for production and AI-driven development; author of The Art of Unit Testing and Elastic Leadership, with about 20 years of consulting and training on unit testing, TDD, team leadership and continuous delivery.

### Sites

- [RobotPaper](https://robotpaper.ai/): This blog: AI patterns and anti-patterns, AI and coding agents, and engineering leadership.
- [osherove.com](https://osherove.com): Roy's personal site. Author of The Art of Unit Testing and Elastic Leadership; consulting and training on unit testing, TDD, team leadership and continuous delivery, plus about 20 years of blog posts.
- [The Art of Unit Testing](https://www.artofunittesting.com): The Art of Unit Testing, 3rd Edition (Manning): readable, maintainable, trustworthy unit tests, plus TDD workshops in C#, JavaScript, Java and Kotlin.
- [5whys.com](https://www.5whys.com): Roy's writing on software team leadership: self-organizing teams, surviving chaos, learning mode and the Elastic Leadership model.
- [Pipeline Driven](https://pipelinedriven.org): Continuous delivery and DevOps practices: build patterns, pipeline-friendly testing, DevOps metrics and enterprise DevOps.
- [Elastic Leadership](https://www.elasticleadership.com): Elastic Leadership, Roy's framework for software team leaders (survival, learning and self-organizing modes).

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### Contact

- Contact form: https://forms.gle/jQSx5KoXvrVA1JCK7

### License

Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page). License: https://creativecommons.org/licenses/by/4.0/