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US Patent 7877373 Executing alternative plans for a SQL statement

Patent 7877373 was granted and assigned to Oracle on January, 2011 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Current Assignee
Oracle
Oracle
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
78773731
Patent Inventor Names
Mohamed Zait1
Date of Patent
January 25, 2011
1
Patent Application Number
114841081
Date Filed
July 10, 2006
1
Patent Citations Received
‌
US Patent 12086135 Problem solving in a database
2
Patent Primary Examiner
‌
Khanh B. Pham
1
Patent abstract

Under automated alternate plan analysis, a query optimizer generates candidate execution plans. The candidate execution plans are selected as alternate execution plans for the query and execution. Output describing characteristics of each alternate execution plan and/or its execution is generated and/or compared. From this information, it may be determined, for example, whether results returned by any of the alternate execution plans are the same and whether the least cost execution plan is actually the most efficiently executed.

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