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.

Date of Patent:
Aug. 27, 2013

Filed:

Sep. 18, 2012
Applicant:

Huawei Technologies Co., Ltd., Guangdong, CN;

Inventors:

Zhenlong Zhang, Hangzhou, CN;

Shuai Zhou, Hangzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for recovering description information, or a method for caching data in a database, includes: judging whether a database is closed normally after the last operation; if the database is not closed normally, traversing each data block in a level-2 cache, where corresponding disk location information is saved in a header of each data block; obtaining a data block in a disk according to the disk location information; and when the obtained data block in the disk is the same as a corresponding data block in the level-2 cache, establishing description information according to location information of the data block in the disk and location information of the data block in the level-2 cache, where the description information is used to describe correspondence between the location information of data in the disk and the location information of data in the level-2 cache.


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Zhang, Zhenlong. (2013). Method and device for recovering description information, and method and device for caching data in database (U.S. Patent No. 8521959). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8521959

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