Johan Åhlén

Johan Åhlén's blog about life, universe and everything.

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StreamInsight introduction and BizTalk adapter
I stumbled upon this blog post, which I think gives a very good introduction to building a StreamInsight Application: http://blogs.msdn.com/b/masimms/archive/2010/08/10/building-your-first-end-to-end-streaminsight-application.aspx It's rather long...
A volcano presentation at Microsoft BI Conference
Sometimes things turn out in a quite different way than expected. I looked forward to visit the Microsoft BI Conference in Stockholm and listen to Rafal Lukawiecki, but ended up doing a presentation there myself... The background is that Rafal is doing...
I will speak about StreamInsight at Miracle Open World in Denmark
Beat the stock market with StreamInsight StreamInsight is one of the main news of SQL Server 2008 R2. It's a platform for Complex Event Processing (CEP) that enables processing of high speed event streams using familiar tools such as Visual Studio...
StreamInsight example queries, input adapters and output adapters
I've published a couple of example StreamInsight queries, input adapters and output adapters on CodePlex. These examples use sample stock market historical data from 2009 and show how to run StreamInsight in Explicit, Implicit and Observable mode...
I will speak about StreamInsight at TechDays 2010 in Sweden
StreamInsight is one of the main news of SQL Server 2008 R2. It's a platform for Complex Event Processing (CEP) that enables processing of high speed event streams using familiar tools such as Visual Studio, C# and LINQ. CEP is a technology that is...
Algorithmic Trading using Complex Event Processing (CEP) and Data Mining
Algorithmic Trading is automated trading done by computer programs (algorithms) that react to patterns in financial market data or financial news. As of 2009, high frequency trading firms accounted for 73% of all US equity trading volume. Several different...
PowerPivot announced as real name for project Gemini
Microsoft just announced the real name for the BI Self Service component (project "Gemini" ) of SQL Server 2008 R2 . According to the new web site, PowerPivot is: "PowerPivot provides business users with BI at their fingertips while enabling...
A first look at SQL Server 2008 R2 - StreamInsight
Background A couple of weeks ago, the second CTP for SQL Server 2008 R2 was released. I downloaded it immediately. Still the product is far from finished, and the CTP didn't contain any preview of the "Gemini" component, but I could at least...