Dynamic datasource issue with loop. NOT Web Contents

[wkmaylish]

I am trying to setup data set that could help us document our data warehouse and Power Bi environments. 

I am currently working on pulling in system info from analysis services and am running into an issue with a dynamic datasource.  In my attempt to make my life easier I created a loop that would loop through a list of cubes and pull all of the data together into one query (instead of creating 20+ queries and another to union them together).It didnt hit me that this would be dynamic until I published. 

Is there anyway to do this without having to create a query for each table? 

Thanks for the help.

Bare bones version of the M code. 

let
DataCatalog = {"Cube1", "Cube2", "Cube3"},

FnGetOnePage = 
    (i) as record =>
    let    
    CatalogTables =  AnalysisServices.Database("{Server Address}", 
    List.First(List.Range(DataCatalog,i,1)), [Query="Select * from $System.TMSCHEMA_PARTITIONS"]),           
    CatalogTables2 = Table.AddColumn(CatalogTables,"Dataset", each  List.First(List.Range(DataCatalog,i,1))),
    res = [Data=CatalogTables2, Next = i+1 ]    
    in
    res,    
 
 GeneratedList =
  List.Generate(
      ()=>[i=0,res=FnGetOnePage(i)],
      each [res][Next]<= List.Count(DataCatalog),
      each [i=[i]+1,res=FnGetOnePage([res][Next])],
      each [res][Data] )    
in
    GeneratedList

[lbendlin · Accepted solution]

Here's how I would approach it.  Create a simple table out of the list of the cubes you want to query, and then run the query inside an added column. (Note: only one cube shown in this example)

let
    Server = "localhost:62185",
    Databases = #table({"Name"},{{"15aa750e-d54b-4902-85f5-6c5b44698a7f"}}),
    #"Added Custom" = Table.AddColumn(Databases, "Meta", each AnalysisServices.Database(Server, [Name], [Query="Select * from $System.TMSCHEMA_PARTITIONS"])),
    #"Expanded Meta" = Table.ExpandTableColumn(#"Added Custom", "Meta", {"Name", "QueryDefinition"}, {"Name.1", "QueryDefinition"})
in 
    #"Expanded Meta"

[manojk_pbi]

Hi @lbendlin , I have similar scenario but data is coming from web. I have to build dynamic query to extract second level of data. How can we acheive ?

I did try the similar way but it didn't work.

[lbendlin]

@manojk_pbi please open a new thread, provide more details, and tag me there.

[wkmaylish]

Thanks for the reply. I gave it a try and am able to pull back data in PBI Desktop but it still gives me a dynamic dataset error once I publish. I am going to look into pulling this data into our data warehouse somehow. 

[lbendlin]

You can run your DMV queries from Powershell scripts if you want.

How to Extract SSAS DMV Data using PowerShell - sqlitybi