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What is secondary indexing?
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Answer / guest
Secondary Index is used when we need to
* Access the IMS Database in an order other than its
primary hierarchical sequence
* Access a segment in the database directly without
supplying its complete concatenated key
| Is This Answer Correct ? | 16 Yes | 3 No |
Answer / david
I might add that batch processing thru a secondary index is
extremely slow with many IOs. It is best used in an online
transaction when just one record is being processed at a time.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / sukanthi
Secondary indexes are based on any field (unique or non-
unique) in a IMS database. It provides for different
processing requirements other than the primary index key
sequence.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / meenal
secondary indexing means accessing a segment in different
ways... using different primary keys..
| Is This Answer Correct ? | 3 Yes | 3 No |
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