Caching Derived Data in Object-Oriented Databases, and an Intelligent System Design for Selecting Their Materialization Strategies
Voss, William Eric
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https://hdl.handle.net/2142/81922
Description
Title
Caching Derived Data in Object-Oriented Databases, and an Intelligent System Design for Selecting Their Materialization Strategies
Author(s)
Voss, William Eric
Issue Date
1998
Doctoral Committee Chair(s)
Belford, Geneva G.
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Computer Science
Language
eng
Abstract
To recompute from scratch, cache, or maintain a running-total is a database optimization question. The best answer depends in part upon usage patterns. For example, is total accessed frequently, or is the underlying table updated frequently? These usage patterns cannot necessarily be accurately predicted during application design. I describe materialization cost estimates based on having the database observe and collect data on actual usage patterns, and the actual costs observed implementing different choices. I designed an intelligent system which dynamically makes materialization choices using these cost estimates. The system is adaptive, and switches between the possible materialization choices as usage patterns change.
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