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:
Jul. 06, 1999
Filed:
Aug. 04, 1997
Applicant:
Inventors:
Naphtali David Rishe, Miami, FL (US);
Artyom Shaposhnikov, Miami, FL (US);
Assignee:
Naphtali Rishe, Miami, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
707-3 ; 707-2 ; 707-8 ; 39520033 ; 39520043 ;
Abstract
The present invention relates to a system and methods for fine-granularity concurrency control in a parallel database. Very fine granularity (at the level of B-tree records) is implemented in a B-tree. Our method applies to B-trees, B-trees with variable keys, and their applications, such as semantic and object-oriented databases. Our method involves accumulating a transaction and then 'optimistically' validating it, while attaining high efficiency with maximum semantic safety. 'Lazy queries'--an efficient method for finding the intersection of two large queries--is provided for the system.