Tim Mitchell

Blog Post

Bad Data Can Kill

Bad data can kill. Literally. I’m not talking about the impact of bad data on the bottom line of business,...

2016-05-31 (first published: )

1,953 reads

Blog Post

Refocus

Three years ago, I left the ranks of full-time employment to become an independent consultant. At the same time, I...

2016-05-04

457 reads

Blog Post

ETL Auditing

It happens far too often: Once an ETL process has been tested and executes successfully, there are no further checks...

2016-03-29 (first published: )

2,289 reads

Blog Post

ETL Logging

If you were to poll data professionals on which tasks they enjoy working on the most, ETL logging would probably...

2016-03-22 (first published: )

2,400 reads

Blogs

Claude Code Helps Analyze Test Data Manager Log Files

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I had a customer ask about analyzing their Test Data Manager (TDM) usage to...

PowerPoint to HTML with Claude AI

By

I had an idea for an animated view of a sales tool, and started...

Don’t Miss Out – SQL Server Query Tuning Fundamentals Starts Next Monday!

By

Next Monday, February 9, 2026, my one-day live online training SQL Server Query Tuning...

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Forums

SQL Server 2025 Query Performance Tuning: Troubleshoot and Optimize Query Performance

By Site Owners

Comments posted to this topic are about the item SQL Server 2025 Query Performance...

Is it uncommon for Dev's to have a data model of the source data

By Coffee_&_SQL

This is a generic question. To the moderators, I wasn't sure where to place...

ROLLUP to calculate Month total for all Categories

By Reh23

Good Afternoon, I have built a table with four columns:  Period(Month), Category, Numerator, Denominator....

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Question of the Day

Creating JSON I

On SQL Server 2025, what happens when I run this code:

SELECT JSON_OBJECTAGG( 'City':'Denver')
GO

See possible answers