Regarding data storage

Hi,

I am using private server and which is linked to postgresql.
I am able to see the data entered from the survey form on the server and also using ODK briefcase extract in the desired format.
Problem:

  1. Now issue is I am not able to open the postgresql.
  2. If I am able to open the postgresql, how in which format data is storing in postgresql.
  3. If I delete the xlsform from the server what will happen to the data. Will it delete automatically data from the postgresql where the former saved data for that particular Xlsform (and this xlsform now we have deleted) i.e. what will happen to that.

Please reply to the problem what i am facing.

Thanks in advance.