Dear,
I am trying not to register a field in the database that is generated with survey. I would like to know how I can achieve this.
Let me explain, fields that are only used for confirmation during the completion of the survey and/or image fields that are only used to personalize the survey.
Set the bind::esri:fieldType column to null and it will not show up in the service. Note it will not take it away after the fact but a new publish it would not have it. You can delete it from the service if you need to.
https://doc.arcgis.com/en/survey123/desktop/create-surveys/esricustomcolumns.htm