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:
Sep. 13, 2005
Filed:
Jun. 20, 2002
Hong-yeon Kim, Daejeon, KR;
Jongho Won, Incheon, KR;
June Kim, Daejeon, KR;
Myung-joon Kim, Daejeon, KR;
Hong-Yeon Kim, Daejeon, KR;
Jongho Won, Incheon, KR;
June Kim, Daejeon, KR;
Myung-Joon Kim, Daejeon, KR;
Electronics and Telecommunications Research Insitute, Daejon, KR;
Abstract
A method for file deletion and recovery against system failures in a database management system comprising steps of deleting files listed in a pending action list during a transaction commit process, writing a non-atomic file deletion as an atomic operation into a log and recovering uncompleted file deletion during restart recovery by using the log is disclosed. When system failures occur during file deletion in a database management system, resources of which releasing is interrupted by failures are released perfectly through recovery step, so it is advantageous in that coherency of data is maintained and efficiency of storage device arises.