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Author: Prologika - Teo Lachev

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Excel Timeline Slicers

In an attempt to improve visualizations of Excel-based dashboards, Excel 2013 introduced a Timeline filter. Specifically designed to visualize dates, the Timeline filter works similarly to regular slicers which were introduced in Excel 2010. Similar to a regular slicer, Timeline connects at the connection level and is capable of filtering multiple reports. It supports also extended selections, such as to select multiple years. However, there…

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Applied BI Semantic Model Course Available

Due to the popular demand, I'm adding a new 5-day Applied BI Semantic Model training course to our training classes. This course reflects the growing need of BI developers to implement both Tabular and Multidimensional semantic models and acquire the necessary knowledge in a compressed educational format. I'm teaching this class for 30 developers next month alone. Targeting BI developers, this intensive 5-day onsite class…

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Power View Can’t Load Power Pivot Models

Scenario: You have created an SSRS application in SharePoint and specified that the application pool would use a specific domain service account that is designated to SSRS. When you attempt to create a Power View report from a deployed Power Pivot model, you get the following error: An error occurred while loading the model for the item or data source '<path to Excel file>'. Verify…

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Where is Power Pivot for SharePoint?

In the process of configuring Power Pivot for SharePoint, you need to run the Power Pivot Configuration Tool, which the documentation explains well here and here. What it doesn't tell you is that unless you overwrite the URL in the Activate PowerPivot Feature in a Site Collection step, Power Pivot will be activated for the first site collection. I ran into a situation where the…

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Atlanta MS BI Group Meeting on Jun 30th

Join us for our next Atlanta MS BI Group meeting tomorrow, Monday, June 30th, to learn about implementing BI for financial reporting. You'll also get a glimpse of the newly announced Microsoft Azure Machine Learning. Spread the word and invite your coworkers but RSVP on our website so we can plan food accordingly. Main Presentation: Microsoft BI for Financial Reporting   Level: Intermediate Date: Monday,…

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Microsoft Azure Machine Learning

Yesterday, Microsoft announced Microsoft Azure Machine Learning, previously known as project Passau. Your humble correspondent has been participating in the Preview Program. Basically, Microsoft Azure Machine Learning is a service for self-service cloud-based predictive analytics. You upload your data to the cloud, define datasets and workflows to create "experiments". Previously, you could create data mining models using the SQL Server data mining capabilities. Microsoft Azure…

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Optimizing Arbitrary Shaped Sets

I'm working on optimizing a fairly large cube (2.5 TB) with some 25 billion rows in the fact table. The customer was complaining about long-running queries. Most queries would specify a time range that was passed to the query filter. For example, if the user wants to see the aggregated data from May 25th 20:00 to June 2nd 19:00, the query WHERE clause would like…

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Partition Bug with Visual Studio

There is a glaring bug with Multidimensional and Visual Studio 2012 and above. When attempting to add a new partition, the Partition Wizard finishes without error but no partition is added. Interestingly, no one has reported this bug more than two years after these Visual Studio editions have shipped. A couple of workarounds exist: Use SSDT or Visual Studio 2010 to create partitions. You can…

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Presenting at SharePoint Saturday Atlanta 2014

I'll be presenting "10 Ways to Maximize Your SharePoint BI Investment" at SharePoint Saturday Atlanta 2014 on June 21st. "Join me to learn how to take the most out of your on-prem or cloud SharePoint investment to promote organizational and self-service BI. We'll compare features of SharePoint editions and discuss options to visualize data from corporate databases and analytical models. Business users will learn how…

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Atlanta MS BI Group Meeting on May 19th

Join us for our next Atlanta MS BI Group meeting tomorrow, Monday, May 19th, to learn about Power Query. Spread the word and invite your coworkers but RSVP on our website so we can plan food accordingly. Main Presentation: Power Query   Level: Intermediate Date: Monday, May 19th, 2014 Time 6:30 – 8:30 PM ET Place: South Terraces Building (Auditorium Room) 115 Perimeter Center Place…

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