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

The Side Project

When I first started working as a technologist some 17 years ago, I was doing fairly low-level stuff: moving and...

2017-01-11 (first published: )

1,362 reads

Blog Post

KPIs in SSRS 2016

Key performance indicators, or KPIs, are at-a-glance metrics for simple insight into the business. These are each designed to provide...

2016-12-30 (first published: )

1,747 reads

Blog Post

On Being Disruptive

Being disruptive is a powerful way to conduct business. Steve Jobs and Bill Gates insisted that computers belonged not just...

2016-12-20 (first published: )

1,733 reads

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Blogs

Programmatic Tool Calling with the Claude SDK

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Programmatic Tool Calling with the Claude SDK Every morning somebody on the team runs the...

A New Word: Mauerbauertraurigkeit

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Methodology for dealing with bad data in production

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Pinal Dave wrote up his methodology for what to do when you discover bad...

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By Grant Fritchey

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Question of the Day

BIT_COUNT() IV

In SQL Server 2025, I run this code: 

select bit_count('A')
What is returned?

See possible answers