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

SSIS Parameters

SSIS parameters help to ease the process of passing runtime values to SSIS packages. For values that can change over time, using parameters in SSIS is an ideal means...

2020-07-14 (first published: )

482 reads

Blog Post

Secure Your Data Prep Area

I’ve been building ETL processes for many years, and I’ve learned two universal truths: data preparation is messy, and you must always secure your data prep area. A data...

2020-06-18

5 reads

Blog Post

Lessons from Iowa’s Caucus Debacle

Earlier this week, the state of Iowa held its caucuses to choose each political party’s nominee for November’s presidential election. Being the first state in each election cycle to...

2020-02-11 (first published: )

786 reads

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Blogs

Fabric Mirroring doesn’t start copying Rows

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A short blog post about an issue with Fabric Mirroring (with Azure SQL DB...

JSON_OBJECTAGG is an Aggregate: #SQLNewBlogger

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I wrote an article recently on the JSON_OBJECTAGG function, but neglected to include an...

Cultural Change: Fostering a Cost-Aware Culture in Your Organisation

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After working deep in cloud operations, I’ve learned that FinOps isn’t really about dashboards...

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Creating a JSON Document I

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Who is Irresponsible?

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Designing Database Changes Before Deployment: Level 1 of the Stairway to Reliable Database Deployments

By Massimo Preitano

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Question of the Day

Creating a JSON Document I

I want to create a JSON document that contains data from this table: 

TeamID  TeamName  City          YearEstablished
1       Cowboys   Dallas        1960
2       Eagles  Philadelphia  1933
If I run this code, what is returned? 
SELECT json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;

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