Indexing management for hierarchical main memory
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United States of America Patent
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Jul 13, 2004
Grant Date -
N/A
app pub date -
Oct 19, 2001
filing date -
Oct 19, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is a system and method for selectively loading indexes into main memory to improve hierarchical database performance, called hot indexing. The most frequently accessed portions of database contents or indexes are loaded into memory. By not loading the entire database into main memory, the size of the database is not limited by the size of the memory. At the same time, targeting the most frequently accessed portion ensures that the desired database content or index is in the faster main memory as opposed to the slower disk based memory. Moving the entire portion into memory, as opposed to making disk based queries to content, speeds up the entire data mining process dramatically. A synchronization method guarantees that changes made to the portion in main memory are reflected in the more permanent disk-based memory.
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