Arun Sirpal

I am a Senior DBA with interest in MS technology especially SQL Server and Azure. During 2015 I was mentored by Paul Randal – Data Platform (SQL Server) MVP and during 2016 I completed my SQLskills Immersion training on Internals and Performance Tuning. When I am not working I am in the gym burning calories.

Blog Post

Azure Redis Commands

Now that we have created our Redis Cache lets connect to it. You can use the most common tool redis cli.exe https://redis.io/download or as I am going to do,...

2022-04-14

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Blog Post

MySQL server Query Store

The query store, sounds familiar? The idea of the black box sitting within the database server watching what is going on within the environment. This is available within MySQL,...

2022-03-03

148 reads

Blogs

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...

Microsoft MVP 2025: Continuing the Data Platform Journey

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I am honored to announce that I have been renewed as a Microsoft MVP...

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Forums

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

Comments posted to this topic are about the item SQL Server 2022 Clusterless Distributed...

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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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