I have simple query.
Suppose if I am working on a project which contains one form (frmStudent) which is linked to table tblStudent.
Suppose if I release this this application. And after some time I created a new form in my project (frmTeacher)
And again for this form I have created new table (tblTeacher) in my database.
Now my question is, while i had this software delivered earlier (when it had only one form (frmStudent)) my client had inserted some records in database. After I update my application and again released my application, what will happen to these past entries? because I dont want to lose any past work of my client.