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. 04, 2008
Filed:
Jul. 27, 2004
Bhaskar Ghosh, Burlingame, CA (US);
Thierry Cruanes, Redwood City, CA (US);
Benoit Dageville, Foster City, CA (US);
Shrikanth Shankar, Mountain View, CA (US);
Bhaskar Ghosh, Burlingame, CA (US);
Thierry Cruanes, Redwood City, CA (US);
Benoit Dageville, Foster City, CA (US);
Shrikanth Shankar, Mountain View, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A cursor that is generated from an original database statement includes a master plan that is shared among the various participants involved in the parallel execution of the operations specified in the original statement. For participants that cannot share the same cursor, such as slave processes on remote servers, a remote cursor is generated. Signatures are generated for both the master plan and the remote plans, and compared to ensure that the remote plans are equivalent to the master plans. Various parameters and statistics are provided to remote servers to increase the likelihood that the remote plans will be equivalent to the master plan.