Overcome the export limit of 150k rows from Power

2019-06-01 03:11发布

问题:

Is there a way to overcome Power BI export limit of max 150k rows?

Limit docs:
https://docs.microsoft.com/en-us/power-bi/visuals/power-bi-visualization-export-data#limitations-and-considerations

Voting for PBI improvement:
https://ideas.powerbi.com/forums/265200-power-bi-ideas/suggestions/18432742-increase-export-data-limits

回答1:

Ok, I got through with that. It is possible. You should be familiar with R and SQL Server to do that. The example below exports 201k rows directly form PBI to SQL Server. Install RODBC package in R. For those who want to do that from scratch, please check the reference links.

Here is an example. Generate a test table in Power BI with 201k rows:

let
    Source = List.Generate(()=>1, each _ < 201001, each _ + 1),
    #"Converted to Table" = Table.FromList(Source, Splitter.SplitByNothing(), null, null, ExtraValues.Error)
in
    #"Converted to Table"

The table is one Column1 with values starting from 1 to 201001. So beyond PBI limit.

Out with that through R. Menu Transform / Run R Script. Paste the code:

library(RODBC)
conn <- odbcDriverConnect("driver=SQL Server;server=.\\SQLEXPRESS;Database=MyDataBase")
odbcClearError(conn)
sqlSave(conn, dataset, tablename="MyR_table",rownames=FALSE, safer=FALSE, append=FALSE)
close(conn)

It will export entire M table to SQLEXPRESS (or any sql server that you provide) to database MyDataBase to table MyR_table (the table is created dynamically, does not have to be created first on SQL Server). In my case it dumped the whole test table of 201k rows in 8 and half minutes.

Links for further reference:
http://biinsight.com/exporting-power-bi-data-to-sql-server/
https://www.youtube.com/watch?v=ANIZkTZO3eU