olap | 易学教程

Connecting to Analysis Services from R or Nodejs

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问题 I am trying to connect Analysis services from either through R or Nodejs. For R, I have found the following library: https://github.com/overcoil/X4R For Nodejs, I have found the following library: https://github.com/rpbouman/xmla4js Analysis Services Server is external. It is not in my local machine. Currently I am able to connect it successfully from Excel using both Windows and basic authentication (username/password). For accessing it through R or nodejs, in the following link it is said I

ORMs are to RDBMSs as xxx is to OLAP cubes? Does xxx exist?

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问题 Is there an ORM-analogue for querying OLAP cubes / data-warehouses? I'm specifically interested in the .NET world, but generally interested in anything ;-) 回答1: I've started an open source project, Kona, to wrap the ADOMD.Net lib, and try to bring ADOMD.Net into the 21st Century. You can get it up at http://www.codeplex.com/kona, but it does need some more love and attention. The task of converting lambdas to MDX isn't a small one, so I haven't even tried to to that, yet. I've tried to

Use VBA to select and deselect multiple slicer items (OLAP data)

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问题 I am working on a script which selects only the needed slicer items. I tried using .SlicerItems.Selected = True / False for selecting and deselecting but I am using an OLAP data source in which case .Selected is read-only. The slicer items are in the format of YYYYWW so 7th week of 2018 would be 201807. I recorded a macro selecting some slicer items and this is what it gave me: Sub Macro2() ActiveWorkbook.SlicerCaches("Slicer_YYYYWW").VisibleSlicerItemsList = Array( _ "[Results].[YYYYWW].&

create OLAP cube in R programming language

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问题 Hi I have following data Function SB `Country Region` `+1 Function` `+1 SB` `+1 Country Region` <chr> <chr> <chr> <chr> <chr> <chr> 1 ENG SB10 AMER ENG SB10 AMER 2 IT SB07 EMEA IT SB07 EMEA 3 QLT SB05 EMEA QLT SB05 EMEA 4 MFG SB07 EMEA MFG SB07 EMEA 5 MFG SB04 EMEA MFG SB05 EMEA 6 SCM SB08 EMEA SCM SB08 EMEA i want to create 3 dimensional OLAP cube in which column Function SB Country Region should be in row and +1 Function , +1 SB , +1 Country Region should be in column . output should be of

Calculated measure/dimension

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I'm relatively new to MDX and am trying to accomplish what I think should be an easy thing, but I haven't found any solution. I have a sales cube and one of the measure is profit which can be negative or positive. I want to get one measure which is effectively the sum of positive profit, i.e. only include in the new measure those profit numbers that have a positive profit. The trick here is this is on the row detail level and something like WITH MEMBER Measures.PositivePNL as IIF (Measures.PNL > 0, Measures.PNL,0) doesn't work as that only works with the aggregate number I should have

Hadoop Hypercube

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问题 Hey, i am starting a hadoop based hypercube with a flexible number of dimensions. Does anybody know any existing approaches for this? I just found PigOLAPSketch, but there is no code to use it. Another approach is Zohmg from lastfm, which uses hbase, but seems to be very dead. I think i will start a pig solution, maybe you have some advices? 回答1: This would be very cool/useful. OpenTSDB is an HBase time-series database that might be interesting to look at, they have a clever approach to

XAML PivotTable from Mosha Pasumansky

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Does anyone have sources of his pivot table? Sources were hosted at http://wpf.netfx3.com/files/folders/5672/download.aspx , but now this site is down. Or may be there are similar samples of pivot grid(with source)? Here is a pic of it : This is in response to "Similar Samples of Pivot Grid (with Source)" CellSetGrid is an Open Source ASP .Net (c#) control, which offers pivot table like functionality. [This used to be available for download in this site: www.SQLServerAnalysisServices.com Now the site does not host this control anymore.] I have uploaded the source of the control - CellSetGrid

Microsoft SQL Server Analysis Services OLAP cube

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I was trying to find a tool to increase performance in the reports of our application and I heard about OLAP + Reporting Services which is described as an excellent combination to do this work. Anyway I didn't find the way to keep the OLAP cube up-to-date since the data in the original DB can change. (It's a transactional application and one pending record can be mark as paid etc). Is this the better way to do this, or should I use another technology? If the suggestion is still to use OLAP + Reporting services how can I have the information up-to-date? I have never used them but I've heard

How to fit a week into a calendar time hierarchy?

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As is usual with cubes, the users want things that don't fit into a hierarchy to be displayed hierarchically. They'd like to see Day > Week > Month > Quarter > Year as the hierarchy, but the problem with weeks is they can be part of 1-2 months, not just 1 month (and by extension part of 2 quarters, semesters, years). So my question is: how to set up the attribute relationships, and how to set up the hierarchy? Here is what I have, but I know it's not optimal. Hierarchies (cycle == weeks): Attribute Relationships: There is no Cycle -> Year, because it is a many-to-many relationship There are

In memory OLAP engine in Java [closed]

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问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . Is there an in memory OLAP (slice and dice data) Java library. (The equivalent of Microsoft Analytic Services). Especially would like to hear if anyone has used one for real. 回答1: Java Data Mining (JDM 2.0) is a standard Java API for developing data mining applications and tools. 回答2: www.icCube.com is a JAVA in