Read the first line of a CSV

RE: Read the first line of a CSV

Abhay Dalsaniya — Mon, 27 Mar 2023 05:14:31 GMT

I am not aware of any way to read csv directly within the Appian. It has to be loaded into DB first and then retrieve from the same.

RE: Read the first line of a CSV

luis_acosta — Fri, 24 Mar 2023 16:27:39 GMT

Hey, vgarcmon. Have you tried to change the BatchSize parameter? It is one of the most common unnattended recomendations, because documentation doesn´t recommend setting this paremeter to -1, which means "extract all the registers at once".

RE: Read the first line of a CSV

vgarcmon — Thu, 14 Jul 2022 14:31:57 GMT

They are files of about 100MB that we load automatically from a repository, and to verify the correct structure of these I need to keep the "headers" to validate them.

RE: Read the first line of a CSV

Mike Schmitt — Thu, 14 Jul 2022 14:29:11 GMT

Oof -- How large is the CSV? Where is it coming from, and do you have any alternatives?

RE: Read the first line of a CSV

vgarcmon — Thu, 14 Jul 2022 14:28:01 GMT

I have also tried the readtextfromfile() function but the file is very large and I get the following error: The Memory Circuit Breaker prevented this evaluation from completing due to insufficient resources. Is there any way to limit this reading?

RE: Read the first line of a CSV

Mike Schmitt — Thu, 14 Jul 2022 14:24:29 GMT

A CSV file is really just text (just in a particular format). I think you might be able to leverage a rule that reads the contents of a text file - i'll look around and see if I remember the one I was thinking of.