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Sample Data with GenAI in Seconds

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A friend was asking for help with some data analysis. This was in PowerBI,...

TSQL Tuesday #188 Growing community

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I am responding late to a T-SQL Tuesday invite from John Sterrett. John’s call...

Time to Revive our YouTube Channel

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It’s been forgotten about and neglected for few years but I’ve decided to dust...

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How a Legacy Logic Choked SQL Server in a 30-Year-Old Factory

By Chandan Shukla

Comments posted to this topic are about the item How a Legacy Logic Choked...

People Make Odd Choices

By Grant Fritchey

Comments posted to this topic are about the item People Make Odd Choices

SQL Server 2022 Clusterless Distributed Availability Group

By Pablo Echeverria

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Question of the Day

Query Plan Regressions --

For the Question of the day, I am going to go deep, but try to be more clear, as I feel like I didn't give enough info last time, leading folks to guess the wrong answer... :) For today's question:  You’re troubleshooting a performance issue on a critical stored procedure. You notice that a previously efficient query now performs a full table scan instead of an index seek. Upon investigating, you find that an NVARCHAR parameter is being compared to a VARCHAR column in the WHERE clause. What is the most likely cause of the query plan regression?

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