John Sansom

John Sansom (Blog | Twitter) is a Microsoft Certified Master (MCM) of SQL Server and publisher of the free SQL community ebook DBA JumpStart, an inspiring collection of advice for Data Professionals, written by 20 SQL Server experts. Awarded the Microsoft Community Contributor(MCC) award, John is a prolific blogger and can be found regularly writing about SQL Server and Professional Development over at www.johnsansom.com.

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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

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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!

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

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Forums

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....

Level 28: DAX Text Functions: The DAX Extract & Modify Functions: LEFT(), RIGHT(), MID(), REPLACE(), SUBSTITUTE()

By Bill Pearson

Comments posted to this topic are about the item Level 28: DAX Text Functions:...

Creating JSON I

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Creating JSON I

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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

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