06236988 is referenced by 149 patents and cites 8 patents.

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.

Title
Data retrieval system
Application Number
9/146789
Publication Number
6236988 (B1)
Application Date
September 3, 1998
Publication Date
May 22, 2001
Inventor
Barry Keith Aldred
Winchester
US
Agent
Anne Vachon Dougherty
US
Gail H Zarick
US
Assignee
International Business Machines
NY, US
IPC
G06F 17/30
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