Daniel Janik

Daniel Janik has been supporting SQL Server for 18 years as a DBA, developer, architect, and consultant. He spent six years at Microsoft Corporation supporting SQL Server as a Senior Premier Field Engineer (PFE) where he supported over 287 different clients with both reactive and proactive database needs. Daniel has spoken at several SQL Saturday events across the US and Caribbean and regularly speaks at PASS local chapters.

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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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