Mapping internal table fields to business partner?

I have an internal table with some fields(from but000) and i have created one business partner(person).Now i want fill the value of fields from internal table to the fields of business partner.

Now the question is how to map the fields of an internal table to the fields of the business partner

<Moderator Message: Locked to due to being a basic question covered by ABAP programming fundamentals>.

Message was edited by: Stephen Johannes