Hi,
I've created a solution for ETL using Excel Power Query. The solution pulls in data from various sources and does the transform steps and finally uses Append to create an output dataset, which I can then plan to upload to a database. As this is a routine task, I'd like to add an index column to the "output" dataset, which is still easy, however, I need to somehow keep track of the last index number (for any batch) so that my next run of the solution uses the last index from the previous one and continues from there. The end game here is to fully automate the process so I don't have to manually feed the next index. I hope this is a clear explanation.
Thank you for your help!
