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  • PowerPivot FILTER condition optimizations

    - by Marco Russo (SQLBI)
    In the comments of a recent post from Alberto Ferrari there was an interesting note about different performance related to the order of conditions in a FILTER call. I investigated about that and Jeffrey Wang has been so nice to give me some info about actual implementation that I can share on a blog post. First of all, an important disclaimer: PowerPivot is intended to make life easier, not requiring the user to think how to write the order of elements in a formula just to get better performance....(read more)

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  • DotNetNuke is switching to C#, uh oh

    - by Chris Hammond
    If you didn’t see Shaun’s blog post earlier this week you should give it a good read through . The post announced the fact that starting with Version 6.0 (targeted for Q2 2011) DotNetNuke will no longer be developed/released as a VB.NET Application. All development of the core platform will be in C# (this does not mean that the community modules for the platform will change languages). Most of the feedback I have seen so far has been rather positive, most folks who use DotNetNuke on a regular basis...(read more)

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  • Visual Studio 2012 and Oracle Development Environment

    - by John Paul Cook
    Creating a complete environment for developing .NET applications that target Oracle requires a little planning and understanding of how Oracle connectivity works. You need to be methodical and test along the way so that you aren’t trying to troubleshoot a multitude of interrelated problems at the end. I’ve made several assumptions in writing this post: You are using 64-bit Windows 7 because you are developer with a lot of ram. I think this post will help you even if you are running Windows 8 instead...(read more)

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  • BPM Process Accelerator Packs - Update

    - by Pat Shepherd
    There are 3 BPM Process Accelerator Packs available now (Accelerator Packs Available ) as discssed in my earlier post: https://blogs.oracle.com/enterprisearchitecture/entry/bpm_process_accelerator_packs There is a new and very useful white paper on BPM/Accelerator best practices at: http://www.oracle.com/technetwork/middleware/bpm/learnmore/processaccelbestpracticeswhitepaper-1708910.pdf Thought I'd post that as the topic is getting more and more attention in various discussions I have been having.

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  • Thinking in DAX: Counting Products in the Current Status with PowerPivot

    - by AlbertoFerrari
    One of my readers came to me with an interesting formula to compute in PowerPivot. Even if I don’t normally post about very specific scenarios, I think this time it is interesting to write a blog post since the formula can be easily created, if you think at it in DAX, while it is very hard if you are still approaching it with an MDX or SQL mindset. Thinking in DAX is something that comes after a lot of formula authoring, something that all BI professionals should strive for, as Vertipaq in the new...(read more)

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  • Null Or Empty Coalescing

    - by Latest Microsoft Blogs
    In my last blog post, I wrote about the proper way to check for empty enumerations and proposed an IsNullOrEmpty method for collections which sparked a lot of discussion. This post covers a similar issue, but from a different angle. A very long time ago Read More......(read more)

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  • SQL SERVER Find Most Expensive Queries Using DMV

    The title of this post is what I can express here for this quick blog post. I was asked in recent query tuning consultation project, if I can share my script which I use to figure out which is the most expensive queries are running on SQL Server. This script is very basic and very [...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • T-SQL User-Defined Functions: the good, the bad, and the ugly (part 3)

    - by Hugo Kornelis
    I showed why T-SQL scalar user-defined functions are bad for performance in two previous posts. In this post, I will show that CLR scalar user-defined functions are bad as well (though not always quite as bad as T-SQL scalar user-defined functions). I will admit that I had not really planned to cover CLR in this series. But shortly after publishing the first part , I received an email from Adam Machanic , which basically said that I should make clear that the information in that post does not apply...(read more)

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  • Thinking in DAX (#powerpivot and #bism)

    - by Marco Russo (SQLBI)
    Last week Alberto published an interesting post about Counting Products in the Current Status with PowerPivot . Starting from a question raised from a reader, Alberto described how to solve a common issue (let me know the “current status” of each item at a given point in time starting from a transactions table) by using a single DAX formula. I suggest you to read his post to understand the technical details of that. What is inspiring of this example is that we can look at Vertipaq and DAX from several...(read more)

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  • PowerPivot, Stocks Exchange and the Moving Average

    - by AlbertoFerrari
    In this post I want to analyze a data model that perform some basic computations over stocks and uses one of the most commonly needed formula there (and in many other business scenarios): a moving average over a specified period in time. Moving averages can be very easily modeled in PowerPivot, but there is the need for some care and, in this post, I try to provide a solid background on how to compute moving averages. In general, a moving average over period T1..T2 is the average of all the values...(read more)

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  • Using Feature to apply themes in SharePoint 2013 Preview

    - by panjkov
    In my previous post I wrote about applying custom theme to SharePoint 2013 site using new theming engine. I also mentioned that one approach for implementing this functionality could be to encapsulate this code in Feature receiver. In this post, I will demonstrate and explain this approach for applying custom theme to SPWeb. Our custom theming Feature will On Feature Activated create and apply new theme to the existing web, while preserving information about current theme On Feature Deactivating...(read more)

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  • devlog & community engagement: where to start?

    - by Lai Yu-Hsuan
    I heard one of the ways to promote games is to start a development log, but I haven't gotten it to this day. Where should I start? Though I have had a blog, this idea seems a infinite loop: Writing blog to promote game, then I have to promote my blog and nothing becomes easier. So, where do you post devlog? Or you post other interesting things in some communities? Are there some examples that I can learn from?

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  • 16 things that could be improved in Ubuntu 10.04

    <b>OMG Ubuntu:</b> "In this post I'm going to list 16 things that I think could be improved in Lucid. I'm going to try my best to address the issues in detail and offer solutions. Of course, all of this is also a matter of opinion too. The object of this post is to make you think about ways we could improve each one."

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  • PowerPivot FILTER condition optimizations

    - by Marco Russo (SQLBI)
    In the comments of a recent post from Alberto Ferrari there was an interesting note about different performance related to the order of conditions in a FILTER call. I investigated about that and Jeffrey Wang has been so nice to give me some info about actual implementation that I can share on a blog post. First of all, an important disclaimer: PowerPivot is intended to make life easier, not requiring the user to think how to write the order of elements in a formula just to get better performance....(read more)

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  • How to prevent Google Analytics from adding a second slash between domain and page specific URL when viewing a page?

    - by Jeromy Anglim
    I have a blog http://foo.tumblr.com. I sometimes go to Site Content - All Pages on Google Analytics and then navigate to page listing and then click the icon to take me to that page on my blog. However, instead of opening http://foo.tumblr.com/post/1234/blah.html Google Analytics is opening http://foo.tumblr.com//post/1234/blah.html (i.e., it is adding a second slash between the domain the page specific component of the URL). How can I stop Google Analytics from doing this?

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  • Parent-child hierarchies and unary operators in PowerPivot

    - by Marco Russo (SQLBI)
    Alberto wrote an excellent post describing how to implement the Unary Operator feature (which is present in Analysis Services) in PowerPivot (there was a previous post about parent-child hierarchies, too). I have to say that the solution is not so easy to implement as in Analysis Services, but it just works and, from a practical point of view, it is not so difficult to implement if you understand how it works and accept its limitations (only sum and subtractions are supported). I think that many...(read more)

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  • Creating a simple accordion with JQuery

    - by nikolaosk
    This another post that is focusing on how to use JQuery in ASP.Net applications. If you want to have a look at the other posts related to JQuery in my blog click here We all know that there is always a limited space in our web page to show content.In this example I would like to show you how to create an accordion "effect" on a simple .aspx page. Some basic level of knowledge of JQuery is assumed. Sadly, we canot cover the basics of JQuery in this post so here are a few resources for you to focus...(read more)

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  • Updated Master Data Services Documentation and Resources

    - by mattande
    (This post was contributed by Reagan Templin, Lead Technical Writer for the MDS Team) With the release of SQL Server 2008 R2, it’s a great time to check out the updated documentation and resources for the release, and for SQL Server 2008 R2 Master Data Services ("MDS") in particular. As you saw in the last post ( New White Papers Available ), there are some great white papers available on MSDN to get you going with MDS. Below you’ll find more information about other updated and newly published content....(read more)

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  • SQL SERVER Shrinking NDF and MDF Files ReadersOpinion

    Previously, I had written a blog post about SQL SERVER Shrinking NDF and MDF Files A Safe Operation. After that, I have written the following blog post that talks about the advantage and disadvantage of Shrinking and why one should not be Shrinking a file SQL SERVER SHRINKFILE and TRUNCATE Log File [...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • SQL SERVER What is AdventureWorks?

    NOTE: If you know the answer of this question, then I request you to stop reading this post right now. Please do not leave comment about this blog post not being useful to you, if you knew the answer. Few days ago, I received DM asking What is an AdventureWorks database and why in all [...]...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Extend OER to enable deletion of unsubmitted assets

    - by Bob Webster
    This post provides a small extension to OER 11g that allows users without full Registrar permissions to delete their own unsubmitted assets. When the extension is installed in OER, a delete button conditionally appears on the Asset Details page of the OER Web App. The button is only visible if the selected Asset is in the 'Unsubmitted' state and the asset was created by the current user. Read the full post here 

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  • Which driver should I use with a 9600 GT Mobile?

    - by lisalisa
    I checked the Additional Drivers offered for my card and I saw four options: NVIDIA accelerated graphics drivers (version 173) NVIDIA accelerated graphics drivers (post-release updates) (version 173-updates) NVIDIA accelerated graphics drivers (version current) (Recommended) NVIDIA accelerated graphics drivers (post-release updates)(version current-updates) I'm not sure which one to pick. I want a driver that's stable but also takes advantage of my card's hardware.

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  • Using Ajax #! for Google but site is not being crawled any more

    - by user28231
    We used to have all links in a normal way (thus with parameters?), we changed to Ajax loading cause we installed a music player. Here's an example: Old links: http://stereofox.com/post.php?idPost=5326 New links: http://stereofox.com/post.php#!idPost=5326 The snapshot you can get it by adding _escaped_fragment_= after the ?. All of these have the same content, and this image says what has happend to the site since we changed the linking system.

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  • Installing WINE 1.4 Errors on Precise 12.04

    - by user71965
    This message is consistently received when installing WINE1.4, which fails to install properly update-initramfs: Generating /boot/initrd.img-3.2.0-25-generic-pae Fatal: No images have been defined. run-parts: /etc/initramfs/post-update.d//runlilo exited with return code 1 dpkg: error processing initramfs-tools (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: initramfs-tools Any thoughts appreciated.

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