Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-05-23
2006-05-23
Kindred, Alford W. (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C707S793000, C715S853000
Reexamination Certificate
active
07051033
ABSTRACT:
A hierarchy may be explicitly or implicitly reflected in existing data maintained external to hierarchy structures. Such hierarchies are referred to herein as a “pre-existing hierarchies”. Techniques are described herein for capturing a pre-existing hierarchy in hierarchy structures. After a pre-existing hierarchy has been captured, there exist two independent sets of data that reflect the hierarchy: the external hierarchy definition and the internal hierarchy definition. Changing either hierarchy definition changes the hierarchy. Therefore, to maintain a consistent reflection of the hierarchy, the internal hierarchy definition must be modified in response to changes made to the external hierarchy definition, and the external hierarchy definition must be modified in response to changes made to the internal hierarchy definition. Various techniques are described for maintaining consistency between the two hierarchy definitions.
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Agarwal Nipun
Jain Namit
Murthy Ravi
Sedlar Eric
Bingham Marcel K.
Kindred Alford W.
Oracle International Corporation
Truong & Becker LLP
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