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. 05, 2002
Filed:
Sep. 29, 1999
David S. Edwards, Glendale, AZ (US);
David A. Egolf, Glendale, AZ (US);
William L. Lawrance, Phoenix, AZ (US);
Bull HN Information Systems Inc., Billerica, MA (US);
Abstract
A system and method that enhances the row retrieval performance of a multi-layer relational database manager by including in the code generation component layer of the database manager a row retrieval performance enhancing subroutine designed to execute functions performed by a lower component layer substantially faster than if the functions were executed by such lower component layer. The subroutine includes logic for establishing the conditions under which the particular subroutine is invoked during the execution of a SQL request. The output code generated to execute a specific SQL query, including calls to the row retrieval subroutine in place of normally included calls to the lower component layer. This enables the generated code to perform lower component layer functions with specialized code designed to increase performance based on the characteristics of the data being retrieved.