Apparatus and method for monitoring usage of components in a...

Details Apparatus and method for monitoring usage of components in a... Apparatus and method for monitoring usage of components in a...

2008-06-24

2008-06-24

Rones, Charles (Department: 2164)

Data processing: database and file management or data structures

Database design

Data structure types

Reexamination Certificate

active

07392266

ABSTRACT:
Database indexes include multiple fields that are used to track how the components of the index are used. An index component monitoring mechanism tracks how the components of the index are used, and updates fields in the index accordingly. Such component-level statistics allow a query optimizer to make more intelligent decisions regarding when to build a new index and when to discard an index, and also provide information regarding which queries are using the index, the maintenance cost of the index, and the selectivity of the index when used to process a query.

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