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:
Apr. 09, 2013
Filed:
Nov. 30, 2006
Hisashi Miyashita, Tokyo, JP;
Ryoh Neyama, Yokohama, JP;
Yohsuke Ozawa, Fujisawa, JP;
Mikio Takeuchi, Zama, JP;
Hisashi Miyashita, Tokyo, JP;
Ryoh Neyama, Yokohama, JP;
Yohsuke Ozawa, Fujisawa, JP;
Mikio Takeuchi, Zama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for improving access efficiency in a database. The database stores values of a plurality of keys associated with the respective keys. The system of the invention executes a plurality of transactions on the database, and acquires and records a referenced value which is a value of a key referenced in a corresponding transaction from the database according to the execution of each of the transactions. Then, according to commit requests of the plurality of transactions, the system requests a reply of a resultant table including an arrangement of judgment results obtained by judging whether the value of the key stored in the database is maintained as the referenced value without change made by another transaction for the respective transactions. The system further judges whether each transaction is successful, based on the resultant table sent back and commits only transactions judged to be successful.