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Extended Event duration Millisecond or Microsecond?

July 23, 2017

There was a question in dba.stackexchange.com titled “module_end extended events duration in microseconds?” that I answered and it was Microsecond in that instance. Later on, I questioned myself if the duration is always in Microseconds for extended events. I found it is a mix of Millisecond, Microsecond and some are unknown meaning famous NULL. I […]

NULL Values in Histogram

May 26, 2017

During my cardinality estimator presentation in DBA virtual group, there was a question asked about NULL values and histograms. I am quoting the question as is “SQL Server include null values in the index. How are statistics handle null values?” I will answer the question in this blog post. For demo purposes, I will be […]

Think Like the Cardinality Estimator

April 26, 2017

This is a session about cardinality estimation, a phase during query optimization. I presented the session to following user groups. Pass DBA Virtual Chapter on April 25, 2017 SQL Saturday Rochester (#619) on April 29, 2017 Rhode Island SQL Server User Group on May 03, 2017 Maine PASS Chapter on May 18, 2017 Seacoast SQL […]

TSQL Tuesday #89 -My Learning Steps to Azure

April 11, 2017

I thank Koen Verbeeck (b|t) for hosting TSQL Tuesday #89. Topic for this month The times they are a-changing inspired by the blog post Will the Cloud Eat My DBA Job? by Kendra Little. I was glad to see this topic was chosen. I clearly remembered reading this blog post and thanking kendra for writing […]

Warning: Non-existent Step Referenced While Creating SQL Agent Job

April 6, 2017

Today there was a question submitted in dba.stackexchange.com with the heading “Suppressing non-ANSI warnings in SQLCMD script”. Details here. In summary, this happens when you use a script to create a SQL Agent job and one of the job steps has conditions (under advanced properties) to go to certain steps in case of success or […]


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In an hour I will be presenting at room - 2

New features in Management Studio -- Performance Troubleshooting made ... easier!

https://www.sqlsaturday.com/1016/en-us/Sessions/Details/sid/108130

Hope to see you there.
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During my career at sea we called Vitoria, Rio Grande do Sul, Santos and Rio de Janeiro many times.
Who knew one day I ... will be speaking at #sqlsatSaoPaulo
Life is strange.

Good morning.
Reviewing my presentation for #sqlsat1016 in 2 hours.
Good luck to all speakers, organizers and ... volunteers. Appreciate attendees taking time out for advancing their career.
#sqlsat1016 #sqlsatsaopaulo #SQLPass

Republicans didn’t want the #TrumpUniversity deposition getting out. I guess this really is the video they don’t ... want you to watch and retweet. So let’s all watch and retweet! 😲

#TrumpTrainwreck #TrumpIsALaughingStock
cc @motherjones @DavidCornDC @donwinslow #Demcast

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