Forum Discussion
Save old and append updated data into an additional table
- 9 years ago
THERE ARE TWO STEPS TO ACHIEVE THIS.
STEP1:
CONNECT YOUR POWERBI MODEL TO DAX STUDIO(YOU NEED TO DOWNLOAD SEPARATELY)
EXTRACT THE TABLE DATA INTO .TXT FILE USING BELOW SYNTAX
EVALUATE
TABLE NAME
PUT YOUR EXTRACTED DATA INTO ONE FOLDER.
CREATE A CONNECTION IN POWERBU DESKTOP "FROM FOLDER" OPTION.
EVERYDAY REPEAT THE FIRST PROCESS WITH DAX STUDIO AND PUT YOUR FILE IN FOLDER. REFRESHING THE POWERBI DESKTOP FILE WILL PICK THE NEW ROWS( APPEND CAN ALSO BE DONE)
Imke Feldmann has a pattern for this using R: http://www.thebiccountant.com/2016/02/09/how-to-create-a-load-history-or-load-log-in-power-query-or-power-bi/
You can now call R from Power Query (without needing the plot in a R visual). I'm not sure what performance or relaibility of this technique is but, if it si sustainable, it lets you maintain your historical data autmatically as part of your data refresh cycle.