What-if index analysis utility for database systems
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United States of America Patent
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Apr 24, 2001
Grant Date -
N/A
app pub date -
Aug 25, 1998
filing date -
Aug 25, 1998
priority date (Note) -
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Abstract
What-if index analysis utility provides the ability to analyze the performance of the existing configuration of a database system with respect to one or more workloads of queries and to propose a hypothetical configuration for the database system to analyze its potential impact on the performance of the database system. The utility may be used, for example, to perform an impact analysis of the set of indexes selected by an index selection tool, for example, with respect to a workload of queries and may also be used to explore what-if scenarios for the database system by analyzing the impact of hypothetical sets of indexes with respect to the execution of various workloads over projected sizes of a database. The utility may be used to perform summarizations of workloads, configurations, and the performance of workloads with respect to the existing configuration and hypothetical configurations. What-if index analysis utility may be used, for example, by a database administrator or a physical database design tool to help improve performance of a database system.
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