What is a set? What pointers are required, what are possible? How may sets be ordered?

A set is an owner record and, optionally, its member records. There are three types of pointers: next, prior and owner, but only next is required. There are five possible orders for arrangements of sets; they are: first - insert at beginning, last - insert at end of set, next - insert after current of set, prior - insert prior to current of set and sorted - insert according to sort value.
  • Interview Candidate
  • 2
  • 2743

Showing Answers 1 - 2 of 2 Answers

Algis kantautas

  • Mar 21st, 2007
 

A.By Codasyl conception SET is data chain between Owner and Member record. B.Pointers: NEXT,PRIOR,OWNER(direct adresation to OWNER_RECORD from MEMBER).At least NEXT pointer is requered to navigate via set.
C. Number of sets really  is unlimited.

  Was this answer useful?  Yes

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.

 

Related Answered Questions

 

Related Open Questions