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What Is A Set In Idms? What Pointers Are Required, What Are Possible? How May Sets Be Ordered? |
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Answer» 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. 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. |
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