Tag Archives: Power Pivot

Sql Server “Denali” CTP3 – first impressions…

Microsoft recently released their third CTP of Denali the upcoming SQL Server release (SQL Server 2011), so here are some initial thoughts now it’s more widely available.:

The first thing to look at is the new Tabular mode for Analysis Services (as opposed to the traditional multi-dimensional mode, which is still available). This is the server version of the VertiPaq engine first seen in the PowerPivot add-in, and moves the engine from being a personal/team tool to an organisation/enterprise level affair.

This means IT are going to get involved (and people can disagree about how they feel about that!), but that report sharing should be easier as data is held centrally. In the past the report contained all the data, which could make for very large workbooks, or you published to SharePoint, which not everyone was set up to do.

Cubes can be queried using MDX, which is great for a front-end vendor like us, and XLCubed works out of the box against the CTP. Existing functionality is working smoothly, and as Microsoft Gold Partners we’re working closely with the releases to utilise all the functionality for the RTM.

We have ported a few existing cubes to the new architecture and one first impression is that removing columns or using perspectives is going to be needed to keep things sensible for end-users, you can quickly end up with hundreds of attributes.

The ability to create hierarchies was something that was often asked for in PowerPivot, and thankfully that’s there now. This should simplify many cubes.

Attribute-tastic

 

The intricacies of MDX put most business users off trying to use it directly, whereas DAX’s similarities with Excel functions means there is more scope to have users create formulae on the fly. Examining how best to expose that to users is something we’ll be spending some time on in the coming months..

Easier distinct counts and the built in date calculations are the obvious candidates, but there are a number of others which we feel we can make more accessible for the majority of users.

It’s certainly an interesting move, and thinking in Tables and Columns instead of the Multidimensional model takes some getting used to, conversely for some people its more natural.

It’ll also be interesting to see how MDX and DAX are integrated. The Tabular server supports both languages for query. Currently using MDX you can use the “With Member” syntax to create members sent to the Tabular server, could you declare a DAX calculation in a similar manner?

PowerPivot, SQL R2, Sharepoint 2010, Office 2010.

So we’ve been using PowerPivot for a while now, and Office 2010 has been part of our lives for some time. I’ll use this blog to answer some of the questions that keep cropping up in conversation with our customers:

1. Does XLCubed work with Excel (Office 14) 2010?

a. Yes, we’ve been using it since the first CTP release and each release since then.

2. Can I use XLCubed Web with SharePoint 2010?

a. Yes, publishing to the web and embedding the reports within your SharePoint site works in exactly the same way as with previous versions.

3. Does XLCubed connect to PowerPivot?

a. Yes, XLCubed connects to the PowerPivot published cubes, and our client tools can be used to build reports and dashboards from them.

4. Can I build reports from SQL Server R2 using XLCubed?

a. Yes this will work just fine, just as you can build reports from previous version of SQL or other relational sources. (here is an example)

PowerPivot in the real world

The services team have been working on migrating some of our internal models and sample databases across to a PowerPivot environment – looking at the pros and cons, using DAX rather than MDX to perform some calculations. Results have been varied, its been interesting to see some features that we’ve had for a while (like cube formulas, slicers and web parameters) appear in a similar way in PowerPivot.

Quite clearly PowerPivot isn’t the be all and end all or anything like a replacement for Analysis Services, but it certainly has a role for tactical solutions, some power user analysis, and we think likely also for RAD prototypes of larger scale AS implementations. It doesn’t venture into the gap left by PerformancePoint Planning (as many thought it would in early 2009) – we’ve moved to address this area with the XLCubed PM suite that uses in memory OLAP cubes and/or Analysis Services.

Trying out some of the tools

Here’s a few download sets for you to try, take careful note of the hardware spec and requirements for the MS ones though:

The 2010 Information Worker Virtual machine

Register and Download Office 2010

PowerPivot 32Bit, 64Bit

XLCubed Evaluation

If you would like to evaluate against your own data – contact the XLCubed Product team for evaluation editions or if you want to try a no risk proof of concept or prototype contact the XLCubed consulting team.