Append new rows to master table using Power Query

[themistoklis]

On this link you will find a workbook which gets the XE rates for a specific time period.

I want to have the exchange rates from 2017 onwards but this takes sometime to load the data.

Is there any way to amend the existing Power Query so as when it runs on a daily basis, to identify the last date with available XE rates and get only rates from the following date till yesterday's date.

This way the process wont have to run again from 2017 and only will run for the missing dates.

E.g. Today is 26/02/2019

XE data are available in the table till 20/02/2019 (master table)

The process will then run from 21/02/2019 till 25/02/2019 and append the rates to the master table

[mahesh_powerbi]

@v-jiascu-msft @themistoklis 

My data source is SAP BW where query folding doesnt work. Kindly point to a work around to achieve updating master data on a daily basis.

Thanks,

Mahesh

[v-jiascu-msft · Accepted solution]

Hi @themistoklis ,

That's the scenario of the incremental refresh. Please refer to the service-premium-incremental-refresh. Maybe you don't need it in your scenario. 

Best Regards,

[themistoklis]

@v-jiascu-msft 

That's a nice solution. Thanks for that