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:
Nov. 28, 1995
Filed:
Oct. 10, 1990
Applicant:
Inventor:
Mitsuru Kakimoto, Kanagawa, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395650 ; 395600 ; 395425 ; 3642814 ; 364D / ; 364569 ;
Abstract
A method and an apparatus for the concurrency control in the database system, in which each transaction can be executed properly according to its scale. In the apparatus, a processing time for each transaction is estimated, a timestamp appropriate for each transaction is determined from the estimated processing time and a current time, and a concurrency control is carried out according to the determined timestamps for the transactions to be executed concurrently.