Data retrieval system
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United States of America Patent
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-
May 22, 2001
Grant Date -
N/A
app pub date -
Sep 3, 1998
filing date -
Sep 5, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A data retrieval system in which a plurality of objects having a multi-level hierarchical relationship are stored is disclosed. Thus, each object has a respective parent and a set of children. The system includes an index table comprising a respective name and associated identifier for each object, and a data table comprising a respective set of attributes and a position key associated with each object in the system. Each position key comprises a series of components, each component corresponding to a level of the hierarchy. A first component of said key stores the identifier of an associated object, and each successive component stores the identifier of the parent of the object stored in the previous component.
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