Timeline condition support for an abstract database

Details Timeline condition support for an abstract database Timeline condition support for an abstract database

2008-01-22

2008-01-22

Hwang, Joon Hwan (Department: 2166)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000

Reexamination Certificate

active

07321895

ABSTRACT:
Embodiments of the invention relate data retrieved from the logical fields of an abstract database using a timeline. The logical fields specified by a database abstraction model are extended to include attributes that specify where data corresponding to a logical field occurs on a timeline. Query results may be displayed by ordering query results as points (for an event) or segments (for a duration) on the timeline. Further, query processing techniques disclosed by the present invention allow users to include temporal operators such as “before”, “after”, “during”, and “within” in an abstract query. Temporal operators provide users with the ability to include temporal relationships in an abstract query, without having to construct a complex conditional expression from more primitive logical operators (e.g., “ands” and “ors”).

REFERENCES:
patent: 6647382 (2003-11-01), Saracco
patent: 6725227 (2004-04-01), Li
patent: 2003/0169284 (2003-09-01), Dettinger et al.
patent: 2006/0095457 (2006-05-01), Glasspool et al.
U.S. Appl. No. 10/083,075, “Application Portability and Extensibility Through Database Schema and Query Abstraction”, filed Feb. 26, 2002.
U.S. Appl. No. 10/403,356, “Dealing with Composite Data Through Data Model Entities”, filed Mar. 31, 2003.
U.s. Appl. No. 11/005,418, “Abstract Query Plan”, filed Dec. 6, 2004.

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