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

Why Before How

I’ve spent a lot of time browsing and participating in online technical forums. In my early years in the industry...

2017-03-28 (first published: )

1,889 reads

Blog Post

Managing Bad Data

In the last post in my ongoing series about ETL best practices, I discussed the importance of error handling in ETL...

2017-02-21 (first published: )

2,206 reads

Blog Post

What is ETL?

In my ongoing series on ETL Best Practices, I am illustrating a collection of extract-transform-load design patterns that have proven...

2017-01-16 (first published: )

2,507 reads

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Blogs

Don’t Miss Out – SQL Server 2025 Unleashed Training Starts Next Monday!

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Next Monday, Marchg 9, 2026, my one-day live online training SQL Server 2025 Unleashed:...

What is ALM in Fabric?

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As someone who’s worked with data for over 20 years and with many cloud...

The Most Successful Startups in 2025 — And What They Have in Common

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2025 belongs to the AI startups. If you peek into the tech headlines, you’ll...

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Forums

A Quick Restore

By Steve Jones - SSC Editor

Comments posted to this topic are about the item A Quick Restore

Guarding Against SQL Injection at the Database Layer (SQL Server)

By tedo

Comments posted to this topic are about the item Guarding Against SQL Injection at...

Ola Hallengren Index Optimize Maintenance can we have data compression = page

By JSB_89

I have a quick question on Ola Hallengren Index Optimize Maintenance . Do we...

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Question of the Day

A Quick Restore

While doing some testing of an application, I wanted to reset my environment after doing some testing with this code: 

USE DNRTest

BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak'
GO
/*
Bunch of stuff tested here
*/RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACE
What happens if this runs, assuming the "bunch of stuff" isn't anything affecting the instance.

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