Assumptions are:

You have a SQL DB with a single table called "tblCustomer" with 2 fields "CustomerNo" and "CustomerName".

I don't know what you are talking about.  Please ellaborate.

After reading the title and the body text again, the only thing that I can gather from this post is that you are wanting a single BO that is dropped on the UI but on the back end it may be pulling from Oracle or SQL.  If this is your question, then yes, you will want to interface with a single BO at the UI level.

The reason this got posted was I clicked on the tab key while making my initial message then pressed a key without looking at the screen and it submitted this thread. See Post #20169 for this real question. Sorry.