How do I make sure a customer number is permanently associated with a particular customer?
Right now, I have a customer ID column (four digit number) but if I delete a row all the numbers ripple up and everything is then wrongly assigned.
Example:
0001 Acme Pencils
0002 John's Sheet Metal
0003 Fred's Groceries
If I now delete 0002, I get
0001 Acme Pencils
0002 Fred's Groceries
From 0002 onwards all the customers have the wrong numbers assigned to them.
I think I need a composite key made from Number and Name but how do you make one? In the design view, I only see Primary Key...
Thanks - rev