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:
Oct. 02, 2018
Filed:
Jun. 23, 2015
International Business Machines Corporation, Armonk, NY (US);
Haruki Imai, Kanagawa, JP;
Hideaki Komatsu, Kanagawa, JP;
Akira Koseki, Kanagawa, JP;
Toshiro Takase, Chiba, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An extraction method for extracting a sub query to be converted to a program for processing stream data continuously inputted to a database, from a query including instructions, as sub queries, to be issued to a database management system. The extraction method includes receiving input of the query and a lower limit value of efficiency as processing time per unit memory increase amount. A calculating operation calculates a one memory increase amount and the efficiency using the memory increase amount and the processing time to be reduced. The method selects a sub query whose calculated efficiency is equal to or higher than the lower limit value and extracts the selected sub query as a conversion object on condition that the integrated memory increase amount is equal to or smaller than the maximum memory increase amount.