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Klaus Aschenbrenner

Klaus Aschenbrenner provides independent SQL Server Consulting Services across Europe and the US. Klaus works with the .NET Framework and especially with the SQL Server 2005/2008 from the very beginnings. In the years 2004 - 2005 Klaus was entitled with the MVP award from Microsoft for his tremendous support in the .NET Community. Klaus has also written the book Pro SQL Server 2008 Service Broker which was published by Apress in the Summer of 2008. Further information about Klaus you can find on his homepage at http://www.SQLpassion.at. He also twitters at http://twitter.com/Aschenbrenner.

Query Memory Grants and Resource Semaphores in SQL Server

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

In today’s blog posting I want to talk about Query Memory in SQL Server, and want to… Read more

1 comments, 154 reads

Posted in Klaus Aschenbrenner on 16 October 2018

My upcoming Speaking Schedule

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

In today’s blog posting I want to give you a brief overview about my upcoming Speaking Schedule,… Read more

0 comments, 94 reads

Posted in Klaus Aschenbrenner on 24 September 2018

New Whitepaper: Architecting Microsoft SQL Server on VMware vSphere

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Last week VMware has released a new whitepaper with the very promising title “Architecting Microsoft SQL… Read more

1 comments, 160 reads

Posted in Klaus Aschenbrenner on 18 September 2018

Service Broker Target for Extended Events

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

During one of my last Online Trainings about Extended Events, someone asked me about the Service… Read more

2 comments, 1,888 reads

Posted in Klaus Aschenbrenner on 10 September 2018

Moving a SQL Server Availability Group to a different Subnet

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Over the last few days I have reworked my home network design, and introduced a new subnet… Read more

1 comments, 2,054 reads

Posted in Klaus Aschenbrenner on 3 September 2018

The unwanted Side Effects of enabling Read Committed Snapshot Isolation

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

A lot of developers are approaching me very often, and tell me that they are using the… Read more

1 comments, 282 reads

Posted in Klaus Aschenbrenner on 30 August 2018

Is a SELECT statement always executed?

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

In today’s blog posting I want to talk about a quite simple question in SQL Server: is… Read more

0 comments, 33 reads

Posted in Klaus Aschenbrenner on 22 August 2018

SQLpassion Online Trainings for Fall 2018

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Today I’m quite happy to announce my SQLpassion Online Trainings for the remaining year. Currently I have… Read more

0 comments, 1,714 reads

Posted in Klaus Aschenbrenner on 14 August 2018

What is an Event-Less Extended Event Session?

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Do you have ever heard about an “Event-Less” Extended Event Session? What is the idea about it?… Read more

0 comments, 1,514 reads

Posted in Klaus Aschenbrenner on 11 June 2018

Does a Query always wait in the SUSPENDED State?

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

In today’s blog posting I want to talk about a very interesting topic: in which execution state… Read more

0 comments, 680 reads

Posted in Klaus Aschenbrenner on 5 June 2018

Actual Number of Rows are not always accurate

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Today’s blog posting is a quite interesting one, because I want to show you a concrete example… Read more

3 comments, 1,967 reads

Posted in Klaus Aschenbrenner on 28 May 2018

SQLpassion Online Trainings in June 2018

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Today I want to announce my SQLpassion Online Training for June 2018.

On June 21, 2018 I’m… Read more

0 comments, 210 reads

Posted in Klaus Aschenbrenner on 21 May 2018

What is VMware vSAN?

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

If you follow me on Twitter, or if you have read my last blog posting about… Read more

3 comments, 602 reads

Posted in Klaus Aschenbrenner on 22 January 2018

How I designed my VMware vSAN based Home Lab

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

As you might know, I have already a quite powerful mobile Home Data Center that I have… Read more

9 comments, 2,085 reads

Posted in Klaus Aschenbrenner on 15 January 2018

SQLpassion Online Training in January 2018

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Today I want to announce my SQLpassion Online Training for January 2018. On January 25 I’m running… Read more

0 comments, 262 reads

Posted in Klaus Aschenbrenner on 9 January 2018

Design, Deploy, and Optimize SQL Server on VMware

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

The year 2017 is almost over, and therefore I want to announce today some important announcements about… Read more

0 comments, 510 reads

Posted in Klaus Aschenbrenner on 5 December 2017

SQLpassion Black Friday Deal

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

As we all know the Black Friday approaches quite fast, and therefore I also want to offer… Read more

0 comments, 444 reads

Posted in Klaus Aschenbrenner on 21 November 2017

SQLpassion Online Training about Availability Groups

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Because of the huge success and additional requests I’m offering my webinar about SQL Server Availability Groups Read more

0 comments, 1,161 reads

Posted in Klaus Aschenbrenner on 9 October 2017

Setting a Processor Affinity in SQL Server – the (unwanted) Side-Effects

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

Today I want to talk about a very important topic in SQL Server – setting a Processor… Read more

6 comments, 1,716 reads

Posted in Klaus Aschenbrenner on 2 October 2017

Adding a Replica back into a SQL Server Availability Group

(Be sure to checkout the FREE SQLpassion Performance Tuning Training Plan - you get a weekly email packed with all the essential knowledge you need to know about performance tuning on SQL Server.)

In one of my last blog postings I have already described a common pitfall when you try… Read more

0 comments, 1,444 reads

Posted in Klaus Aschenbrenner on 25 September 2017

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