What is a Set? What are the pointers that are possible to arrange the sets? - IDMS

What is a Set? What are the pointers that are possible to arrange the sets?

- An ‘owner’ record and optionally ‘member records’.

- The ‘pointer’ types are ‘next’, ‘prior’ and ‘owner’.

- Only ‘next’ pointer is needed to order the set.

- The sets are arranged in 5 possible orders.

1. first – inserts at the beginning of the set.
2. last – inserts at the end of the set.
3. next – inserts after the current of set.
4. prior – inserts before the current of set.
5. sorted – inserts as per the sort value.