How is pull data updated?

[deleted-user-4eCuGRDZm2v8]

I need to create a browser based survey that at first, searches through a list of addresses within our city.  I understand I can do this using a CSV and the pull data function but how is the data updated?  If I run a script to update the CSV do I have to republish the survey each time?

Scott

[JamesTedrick]

And just to check, it is the old file with a new date?

[deleted-user-4eCuGRDZm2v8]

Correct.