Member Avatar for Amiet_1

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.

  • 3 Contributors
  • 2 Replies
  • 166 Views
  • 15 Hours Discussion Span
  • Latest Post Latest Post by Mr.M
Member Avatar for Suzie999

It is your responsibility as developer to ensure your update is backward compatible and/or can import the old database to the new.

Member Avatar for Mr.M

The simple update will be to update the project its self. Meaning you will create your project and publish/release it, the if you feel of adding new features you need to update the already created project in that way when you publish its will create a new version folder and should an end user who is using an older version download and install the app will only change/add the new added features and the project will still be as it was with the new features now.

To test simply create a project then install it on your computer and update your project and install it again(installing the new version) you will see. I do this a lot before I release my projects. At least in VB.NET

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.