Estimation of clustering for access planning

Data processing: database and file management or data structures – Database design – Data structure types

Reexamination Certificate

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C707S793000, C707S793000, C707S793000

Reexamination Certificate

active

07024422

ABSTRACT:
A method for computing clustering factor that is particularly suitable for use with existing indexes. The clustering factor is generated, by first determining clustered storage locations of records in a relation, i.e., locations where the records would be found if they were clustered relative to the attribute (e.g., locations for the records if they were ordered in storage in accordance with the attribute). Then, the actual storage locations of records are correlated to the clustered storage locations, and a clustering statistic is generated based upon the correlation.

REFERENCES:
patent: 5778352 (1998-07-01), Inoue et al.
patent: 5930828 (1999-07-01), Jensen et al.
patent: 6029195 (2000-02-01), Herz
patent: 6370549 (2002-04-01), Saxton
patent: 6470330 (2002-10-01), Das et al.
patent: 6556983 (2003-04-01), Altschuler et al.
patent: 6728720 (2004-04-01), Lenzie
patent: 6792399 (2004-09-01), Phillips et al.
Abdo Esmail Abdo, U.S. Appl. No. 09/818,044, (ROC920000274US1), filed Mar. 27, 2001, “Apparatus and Method for Determining Clustering Factor in a Database Using Block Level Sampling”.

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