The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2011
Filed:
Aug. 26, 2004
Robert J. Jenkins, Jr., Foster City, CA (US);
Adiel Yoaz, Foster City, CA (US);
Robert J. Jenkins, Jr., Foster City, CA (US);
Adiel Yoaz, Foster City, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
An approach for using functional indexes as a primary filter is provided. A database query that contains a reference to a column of a table, but does not contain any reference to a functional index based on that column, is received by a database server. The database server adds to the database query a reference to the functional index on the column. The database server determines if the database query should be executed using the functional index. If the database server determines that the database query should be executed using the functional index, then the database query is executed with the functional index. If the database server determines that the database query should not be executed using the functional index, then data that indicates that the functional index is not to be evaluated when the database query is executed is stored.