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:
Aug. 19, 2014
Filed:
Nov. 16, 2010
Shigeko Mori, Kanagawa, JP;
Shigeko Mori, Kanagawa, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of checking consistency of pointers in a hierarchical database includes reading segment information recorded on the hierarchical database and determining a type of each segment and pointer included in each segment. The method also includes extracting parent pointers and twin pointers from child segments and extracting a child pointer from the parent segment. The method also includes calculating a first hash value by a combination of a storage location address of the parent segment and a value of the child pointer and a combination of the values of the parent pointers and the twin pointers included in the child segments, and a second hash value from a combination of storage location addresses of the child segments and the values of the parent pointers included in the child segments. The method further includes indicating a consistency error when the first hash value and the second hash value differ.