InfoPath Dev

I HAVE A VERY IMPORTANT QUESTION, I HAVE RECENTLY DESIGNED AN INFOPATH PROGRAM FOR MY OFFICE COMPUTER, WISH HELPS ME WITH THE PATIENTS SCHEDULE, HOWEVER I HAVE THE PROBLEM THAT WHEN I TRY TO DO AN UPDATE IN THE INFORMATION THAT ALREADY HAS BEEN SUMMITED IT'S ERASES EVERYTHING I HAVE PREVIOUSLY DONE AND TAKES ME BACK TO THE BEGINNING. My question is what can I do to be able to do updates without having to do it all over again. Thank you in advance

Hi-

How does the form work? Does it submit to SQL, to SharePoint? I ask because in general you want to open an xml (form) in order to update its data.

If you open the XSN (form template) you'll get an all blank form.

Understanding a bit more of your scenario will help. Can you elaborate? Thanks!