Shopping cart query

[chrima]

Hi all,
Can anyone advise on the following:

I'm currently building my own shopping cart. When i grab the customers shipping details, i am asking the customer (via radio buttons) whether or not the shipping address is the same as the billing address. If they answer yes i am currently placing the shipping details in a table called 'shipping' and the billing details (although the same as the shipping details) into a table called 'billing'.
My question is, if the shipping and billing details are the same would it be better practice to not insert the data into the 'billing' table, rather query the shipping table first?

Any advice on what you guys do in this situation would be great.

Cheers,
chrima

[lanjoky]

This is just my personal opion but I would always fill the billing table with the details of the users address and contact info etc and have a field in that table that holds a bit (1=true 0= false) if one is filled in the shipping address is hte same if 0 is filled the shipping address is different and therefore something needs to be in shipping table for that address.

Make sense??