Myself Vaibhav, I am working currently on a product which is allready developed using the SQL server as a backend.
What I suppose to do is, using this concept I should transfer the SQL queries in such a generalised way so that it could be executed on any Backend. It means the same product could be deployed for any backend.
The solution for this is Data Access Layer (DAL). Could anyone please explain me what exacatly one has to do here in this case.