Published March 2, 2011
With all that is going on these days, I have not been doing a good job of keeping this aggregator site up to date. With that, I will say – I will no longer be updating this site because of the frentic pace that Dave and I are updating our own respective sites. Saying ths, for more information, please go to:
Dave Wickert: http://powerpivotgeek.com
Denny Lee: http://dennyglee.com
SQLCAT Blog: http://sqlcat.com
Because PowerPivot for Excel and PowerPivot for SharePoint involves so many components from SQL Server 2008 R2 Analysis Services, Office 2010, and SharePoint 2010, this poster provides an end-to-end view of the PowerPivot Security Architecture in one view. This view includes nearly all of the logical security surface areas and illustrates how these systems interact.
Included in this diagram are:
- Service Accounts
- SharePoint Databases
- Security Hardening
- Automatic Data Refresh
- User Identity Flow
- PowerPivot Permissions Levels
Please click through to continue reading: PowerPivot Technical Architecture Diagram
Published August 30, 2010
August 30, 2010 by dennyglee
A long time ago, but not in a galaxy too far away…actually, just in Redmond, WA,… there was A NEW HOPE for easier PowerPivot for SharePoint installations!
So hats off to the Analysis Services product team for building an easier PowerPivot for SharePoint installation by providing us with the “New Server” installation choice. Yet, even with the easier installation steps, it is important to make sure you do the steps in the right order and have the correct prerequisites installed to make it a smooth installation experience.
Click through to continue reading: PowerPivot for SharePoint: Single Server Installation
By powerpivotgeek (email@example.com), on August 22nd, 2010
Recently a question has come up on one of the forums about the number of rows that PowerPivot can load. Clearly PowerPivot can hold a lot – just look at our demos. Millions and millions . . ah . . but how many millions?
The key geek ‘magic’ is the Vertipaq engine. The in-memory Vertipaq engine has an extensive array of techniques that it uses for compressing and manipulating the data. Being an in-memory database system means that the more data that we can get in . . the more data we can scan . . the more kinds of applications that we can solve. So compression is a HUGE deal for us.
Please click through to continue reading: How much data can I load into PowerPivot?
August 21, 2010 by dennyglee
One of the cool things with PowerPivot is to click on an SharePoint List’s Export as Data Feed (i.e. an ATOM feed) and its data can be imported directly into a PowerPivot for Excel workbook. To get this thing to work, one of the key things that I remind people regularly is to make sure you install ADO.NET Data Services Update for .NET Framework 3.5 SP1.
So after doing this multiple times, I proceeded to do my usual atom feed import like I usually do:
Please click through to continue reading Help, my PowerPivot for SharePoint Lists Atom Feed has fallen and it can’t get up!
By powerpivotgeek (firstname.lastname@example.org), on August 21st, 2010
From time to time I get questions from folks asking me “What is the best debugging tool for PowerPivot?” – The Answer is that there is clear cut favorite and it is EXTREMELY useful, but I didn’t know that it was released to the public. Well . . . after some investigation, it looks like it is available – not only that, it has been for a while. But better late than never . . take a look at it!
Please click through to continue reading SharePoint 2010 revised ULSViewer
By powerpivotgeek (email@example.com), on August 18th, 2010
Question: By default PowerPivot has two limitations when working with text files (using the Office ACE OLE DB provider): (1) will only import data from files with an extension of .txt, .tab, and .csv; and (2) it will only recognize tab, comma, semicolon, space, colon, and vertical bar and column delimiters. Is there a way to change PowerPivot’s configuration so that it will recognize other file extensions or column delimiters?
To continue reading, please click through to Howto: Get more flexibility when importing data from text files