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. 23, 2010
Filed:
Sep. 16, 2004
Bhaskar Ghosh, Burlingame, CA (US);
Thierry Cruanes, Redwood City, CA (US);
Benoit Dageville, Foster City, CA (US);
Bhaskar Ghosh, Burlingame, CA (US);
Thierry Cruanes, Redwood City, CA (US);
Benoit Dageville, Foster City, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
Techniques are provided for executing database statements, or portions thereof, in parallel without using slave SQL to communicate to each slave the operations to be performed by the slave. Techniques are provided for incorporating within a shared cursor the code fragments that govern both sides of the interaction between a query coordinator (QC) and remotely-located slaves. Further, techniques are provided for the QC to communicate with each slave on how and which portions of the execution plan to execute and when. A state-transition engine for slave execution under the control of the query-coordinator is also provided.