Patent · US Expired

Method and infrastructure for processing queries in a database

US7299224B2 · kind B2 · utility

9Cited by

1References

20Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Jochen Doerre · Eppelheim, DE
Monika Matschke · Calw, DE
Roland Seiffert · Herrenberg, DE
Matthias Tschaffler · Nufringen, DE

Key dates

Filing date	Aug 26, 2004
Grant date	Nov 20, 2007
Priority date	—
Expiry date	Oct 18, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S707/99934
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Provided is a method for processing queries in a database in which data records have a parametric object and an extension of a nonparametric data type. A query includes a parametric condition for the parametric object of the data records and a nonparametric condition for the nonparametric extension of the data records. Parametric information of each data record is translated into constructs of the data type of the extension. A parametric result set of data records for the parametric condition is generated. The parametric condition of said query is translated into a filter condition for said constructs of the data type of the extension. The nonparametric condition of said query and said filter condition are employed to generate a nonparametric result set. The parametric result set and the nonparametric result set are joined to obtain a result set.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.