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How to UNPIVOT table in SQL Server / UNPIVOT table example in SQL Server
Szymon Wójcik:Recently I’ve had a similar case when I needed to unpivot multiple related columns at the same time. It turned out that running multiple UNPIVOTs is actually slower and creates more...
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Monitoring native Windows deduplication job progress with Power Shell
I am a big fan of Windows data deduplication since I first saw it in Windows Server 2012 RC. You can never have enough of the disk space, right? :) It has its downsides (mostly maintenance-related –...
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Multiple UNPIVOTs versus CROSS APPLY analyzed
Few days ago I posted a bookmark to a blog post where an example of multiple UNPIVOTs was given. I stated that such scenario – UNPIVOT of multiple groups which contain related data – is not optimal and...
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Setting up linked servers using Windows Authentication and how to solve...
This post will cover a topic of connecting linked servers using Windows Authentication. Linked server is a hot topic since longer than I am able to imagine (namely SQL Server 7.0) but it needs a bit of...
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Remote stored procedure execution through linked server
I am recently doing a lot of experiments with linked servers. Last one included enabling remote stored procedure call and it’s really quick – it only requires RPC Out to be set to true in the linked...
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Linked servers’ antipatterns
After previous post about using Windows Authentication for linked servers I realized there are more common points with regards to linked servers that might be identified as antipatterns. I’ll describe...
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SQL SERVER – How to Access the Previous Row and Next Row value in SELECT...
Szymon Wójcik:After reading forementioned article by Pinal Dave I wanted to compare those methods and I even managed to make the CTE version to run in acceptable time – around 0.5 seconds on 20k...
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Miscellaneous linked server creation – aliases, other database providers and...
After publishing recent posts regarding linked servers I noticed there are still some topics about linked servers that are interesting but not so straightforward. So, I decided to describe them details...
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Late start into 2014
Long time no post. There’s a number of reasons for that, all of them “overridden” by my laziness. :) I had a strong resolution of keeping good progress with the blog, but reality proved otherwise....
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Benchmarking database servers on desktop hardware
Long time no post, again. I have about 10 drafts started that will probably never see the light of day since I abandoned them. On the other hand, I was quite busy last 18 months overclocking everything...
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