I am looking for a way to connect to a MS Analysis Services OLAP cube, run MDX queries, and pull the results into Python. In other words, exactly what Excel does. Is there a solution in Python that would let me do that?
Someone with a similar question going pointed to Django's ORM. As much as I like the framework, this is not what I am looking for. I am also not looking for a way to pull rows and aggregate them -- that's what Analysis Services is for in the first place.
Ideas? Thanks.
Microsoft Analysis Services takes a neutral position in the MOLAP vs. ROLAP arguments among OLAP products. It allows all the flavors of MOLAP, ROLAP and HOLAP to be used within the same model.
ADOMD. Go to C:\Windows\Microsoft.NET\assembly\GAC_MSIL\Microsoft. AnalysisServices. AdomdClient\ .
An OLAP cube, also known as multidimensional cube or hypercube, is a data structure in SQL Server Analysis Services (SSAS) that is built, using OLAP databases, to allow near-instantaneous analysis of data.
This can be done quite easily using pythonnet:
http://pythonnet.github.io/
You load the Microsoft.AnalysisServices.dll that is provided with SQL Server 2005 and 2008 or get the redistributable package here:
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=b33d2c78-1059-4ce2-b80d-2343c099bcb4
search for SQLSERVER2008_ASAMO10.msi
Then you can load it up and use it. Here is an example that simply processes cubes:
import CLR
from CLR.System.Reflection import Assembly
Assembly.LoadWithPartialName("AnalysisServices.DLL")
from CLR.Microsoft.AnalysisServices import Server
from CLR.Microsoft.AnalysisServices import ProcessType
serverName = 'localhost\sql2005'
dbName = 'MyDatabase'
# Connect to server
amoServer = Server()
amoServer.Connect(serverName)
# Connect to database
amoDb = amoServer.Databases[dbName]
amoDb.Process(ProcessType.ProcessFull)
I am completely ignorant about Python, but if it can call DLLs then it ought to be able to use Microsoft's ADOMD object. This is the best option I can think of.
You could look at Office Web Components (OWC) as that has a OLAP control than can be embedded on a web page. I think you can pass MDX to it, but perhaps you want Python to see the results too, which I don't think it allows.
Otherwise perhaps you can build your own 'proxy' in another language. This program/webpage could accept MDX in, and return you XML showing the results. Python could then consume this XML.
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