Tim Mitchell

Tim Mitchell is a business intelligence consultant, author, and trainer. He has been building data solutions for over 20 years, and is a 13-time recipient of the Microsoft Data Platform MVP award (2010-2022). He is the founder and principal data architect at Tyleris Data Solutions.

Tim has spoken at international and local events including the SQL PASS Summit, SQLBits, SQL Connections, along with dozens of tech fests, code camps, and SQL Saturday events. He is the author of the book The SSIS Catalog: Install, Manage, Secure, and Monitor your Enterprise ETL Infrastructure, coauthor of the book SSIS Design Patterns, and is a contributing author on the charity book project MVP Deep Dives Vol 2.

You can visit his website and blog at TimMitchell.net or follow him on Bluesky at https://bsky.app/profile/tmitch.net.
  • Interests: SQL Server, Data Warehousing, ETL, Data Architecture, Python, Dbt

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Blog Post

Dust Off That Resume

Since I started regularly attending SQL Saturday events some five years ago, I’ve sat in on a number of professional...

2013-03-08 (first published: )

3,146 reads

Blog Post

I Need Your Vote!

Do your civic duty, and vote today! 
Voting is now open for SQLBits, to be held in Nottingham, UK this...

2013-01-07 (first published: )

1,585 reads

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Blogs

Presenting with Visual Studio Code

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A while back I wrote a quick post on setting up key mappings in...

Advice I Like: In 100 Years

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In 100 years a lot of what we take to be true now will...

dataMinds Saturday 2026 – Slides

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At Saturday the 21st of February I’m presenting an introduction to dimensional modelling at...

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Forums

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Hi, i'm running vs2022.   I'm trying out a c# script that i'd like to...

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Question of the Day

Missing the Jaro Winkler Distance

I upgraded a SQL Server 2019 instance to SQL Server 2025. I wanted to test the fuzzy string search functions. I run this code: 

SELECT JARO_WINKLER_DISTANCE('tim', 'tom')
I get this error message:
Msg 195, Level 15, State 10, Line 1 'JARO_WINKLER_DISTANCE' is not a recognized built-in function name.
What is wrong?

See possible answers