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.

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Blog Post

PsPing your Azure SQL Server

PsPing tool is part of the sysinternals PsTools download found –  ( https://docs.microsoft.com/en-us/sysinternals/downloads/psping) This is the tool of choice when wanting to...

2018-07-23

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Blogs

Extending a SQL Server Failover Cluster Across Regions in  Google Cloud Platform (GCP)

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I was the principal author of this SIOS whitepaper, which describes how to build...

Heading to 2024 PASS Summit

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Question of the Day

The LAGging NULL

I have this data in a SQL Server 2022 table: 

player         yearid team HR
Alex Rodriguez 2012   NYY  18
Alex Rodriguez 2013   NYY  7
Alex Rodriguez 2014   NYY  NULL
Alex Rodriguez 2015   NYY  12
Alex Rodriguez 2016   NYY  9
If I run this code, what are the results returned in the hrgrowth column? 
SELECT
  player
, yearid
, hr
, hr - LAG (hr, 1, 0) IGNORE NULLS OVER (ORDER BY yearid) AS hrgrowth
FROM dbo.playerstats;

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