Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2003-12-24
2008-12-09
Mizrahi, Diane (Department: 2165)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
07464100
ABSTRACT:
Methods and apparatus, including computer program products, for addressing data in a database. One method includes storing a physical address of a data object in a mapping item having an item address, and identifying the data object by that item address. If the data object is moved to a second physical address, the second physical address is stored in the item. The item can be contained within a mapping page, and the item address can be derived from an address within the mapping page. The item address can be stored with the data object and can be stored in database indices to identify the data object. One method for accessing a data object includes reading an identifier for the data object, obtaining a mapping item address from the identifier, reading a physical address from the mapping item address, and then accessing the data object using the physical address.
REFERENCES:
patent: 6591340 (2003-07-01), Chopra et al.
patent: 2002/0073110 (2002-06-01), Duvillier et al.
patent: 2003/0115324 (2003-06-01), Blumenau et al.
patent: 2004/0186976 (2004-09-01), Bayt
Fountainhead Law Group PC
Mizrahi Diane
SAP (AG)
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