Blog – Page 66 – Prologika

CU2 for SQL Server 2012 SP1

February 27, 2013 / No Comments »

Microsoft released a while back a cumulative update 2 for SQL Server 2012 SP1. Besides other things, it includes a fix for the "wide" MDX query performance degradation issue with Analysis Services that I previously reported. Knowledge base for the performance issue Knowledge base with SP1 CU2 download link
Nevron Chart for Reporting Services

February 18, 2013 / No Comments »

Nevron was kind enough to show me their chart and gauge for Reporting Services. In certain areas, their products exceed the charting capabilities of Reporting Services. Here are the highlights: The product provides support for SQL Server Reporting Services (SSRS) 2005, 2008, 2008R2 and SQL Server Data Tools (SSDT) 2012. Advanced Chart Designer Complete set of 2D and 3D Charting Types Support for Code Customization - Nevron Chart for Reporting Services supports customization through C# code, which allows you to use the full Nevron Chart for .NET API in SSRS and achieve a higher degree of customization. Expressions Everywhere - Nearly all properties of the Chart report item can now be specified by expressions. Appearance styles (fill, stroke, shadow and text) are also reworked to support both constant specification and specification that is based on expressions. This allows you to bind nearly all configurable aspects of the report item to...
SQL Server 2012 Semantic Search

February 11, 2013 / No Comments »

Suppose your company has a web application that allows customers to enter comments, such as to provide feedback about their product experience. How do you derive knowledge from these comments? Perhaps, customers are complaining a lot about a particular product. Or, they are raving about your service. Enter semantic search – a new feature in SQL Server 2012. Building upon full text search, semantic search allows you to search not only for words, but also for the meaning (semantics) of these works. Mark Tabladillo, Ph.D., gave us great presentation at our Atlanta BI January meeting. He demoed how semantic search can be used to find the most common phrases in a document and how to find similar documents from a given search criteria. Besides external documents, you can apply semantic search to text data already stored in a database, such as a text-based Comments field. Again, this is possible because...
Gartner’s 2013 Business Intelligence Magic Quadrant

February 8, 2013 / No Comments »

Gartner released the 2013 BI Magic quadrant report. And the winner is…
Gartner’s 2013 Data Warehouse Magic Quadrant

February 5, 2013 / No Comments »

MVP fellow, Andrew Burst, discusses Gartner's newly released DW (not BI, mind you) magic quadrant. It looks like Gartner fell in love with Teradata but Microsoft is moving up as well thanks to the advances in its Parallel Data Warehouse (PDW) and in-memory offerings.
Performance Degradation with the Aggregate Function and Unrelated Dimensions

February 5, 2013 / No Comments »

I ran into a severe performance issue with the Aggregate function and unrelated dimensions which I reported on connect. In this context, an unrelated dimension is a dimension that doesn't join any measure group in the cube. Why have unrelated dimensions? My preferred way to implement time calculations is use a regular dimension that is added to the cube but not related to any measure groups. Then, I use scope assignments to overwrite the time calculations, e.g. for YTD, MTD, etc. For example, the scope assignment for YTD might look like: Scope ( [Relative Date].[YTD] ); this = Aggregate ( {[Relative Date].[Current Period]} * PeriodsToDate([Date].[Fiscal].[Fiscal Year], [Date].[Fiscal].CurrentMember) ); End Scope; Notice the use of the Aggregate function which when executed maps to the default aggregation function of the underlying measure. For some reason with SQL Server 2012, a query that uses the Relative Date dimension experiences a significant performance hit....
PowerPivot Data Refresh in Excel 2013

February 4, 2013 / No Comments »

What options does a PowerPivot user have to refresh data in a PowerPivot model on the desktop, aka PowerPivot for Excel? Prior to Excel 2013, the answer was just one – manual refresh by either clicking the Refresh button in the PowerPivot window or the Refresh button in the Existing Connections dialog box. Note that the Refresh button in the Excel ribbon doesn't work since Excel doesn't know anything about PowerPivot. Not does the checking the "Refresh data when opening the file" checkbox in the PowerPivot connection. In Excel 2010, these options won't reopen the PowerPivot connections to the data sources. Instead, the net effect is that they will simply refresh the pivot reports from the pivot cache which is not what you're after. Starting with Excel 2013, however, Excel and PowerPivot play better together as I discussed in my What's New in Office 2013 BI blog. And, now we...
PerformancePoint 2013 Dependencies for Analysis Services

February 4, 2013 / No Comments »

Besides the usual hassle configuring PerformancePoint, including insufficient permissions to databases and service accounts, version 2013 requires the SQL Server 2008 R2 drivers. This is surprising considering that SharePoint 2013 shipped after SQL Server 2012. In a previous blog, I explained how to configure the SharePoint 2013 BI Center. When you go to any of the PerformancePoint-related links, such as Dashboards or PerformancePoint Content, you'll see the following ribbon. The Dashboard Designer button is the new way to launch the PerformancePoint Designer. However, when you attempt to configure a data source pointing to Analysis Services, you will likely get an error. The first stop for troubleshooting SharePoint and PerformancePoint issues is of course the Windows Event Log. If you examine the Windows Event Log, you'll see that PerformancePoint fails to load the 10.0 version of Microsoft.AnalysisServices.AdomdClient. This is the version that's included in SQL Server 2008 R2. This sends you...
The SharePoint 2013 Business Intelligence Center

February 4, 2013 / No Comments »

Where should I put my BI reports? Should I upload them to department-level SharePoint sites or put them in one place? These are common questions that we get from customers. Delivering on the promise of pervasive BI, my preference is to centralize BI artifacts in a single place. Ideally, this BI depository should be the SharePoint Business Intelligence Center. If organizational security is required, you can control security at SharePoint site or library level. For example, you can create department-specific PowerPivot galleries. The BI Center is one of the SharePoint site templates that is specifically designed to host BI reports. In SharePoint 2013, Microsoft has extended the BI Center to accommodate various types of BI documents. When I first installed the BI Center in SharePoint 2013 (click Settings (the wheel in the top-right corner), Site Contents, New Subsite, Enterprise Tab, Business Intelligence Center), I was confused. The images are not...
Programming MapReduce Jobs with HDInsight Server for Windows

December 28, 2012 / 4 Comments »

In a previous blog "Installing HDInsight Server for Windows", I introduced you to the Microsoft HDInsight Server for Windows. Recall that HDInsight Server for Windows is a Windows-based Hadoop distribution that offers two main benefits for Big Data customers: An officially supported Hadoop distribution on Windows server – Previously, you can set up Hadoop on Windows as an unsupported installation (via Cygwin) for development purposes. What this means for you is that you can now set up a Hadoop cluster on servers running Windows Server OS. Extends the reach of the Hadoop ecosystem to .NET developers by allowing them to write MapReduce jobs in .NET code, such as C#. And, in previous blogs, I've introduced you to Hadoop. Recall that there are two main reasons for using Hadoop for storing and processing Big Data: Storage – You can store massive files in a distributed and fault-tolerant file system (HDFS) without...