When i am creating basic view taking any table ,suppose mara and adding three fields which are non key after executing this basic view i am getting records of these three fields only. but when i create composite view adding my basic view in it and ...

What is singleton class ? what will be the real time example or scenario for singleton class related to OOABAP.

I need to Create ODATA Service for a Customer Registration page with Validations for CustomerID, Name, Email, Age, Address, and Phone Number. How can i achieve this? whether i use signleton class or a normal class to import the methods from se24 in...