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:
May. 11, 2021
Filed:
Jul. 25, 2018
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Panagiotis Antonopoulos, Redmond, WA (US);
Adrian-Leonard Radu, Redmond, WA (US);
Hanumantha Rao Kodavalla, Sammamish, WA (US);
Peter Byrne, Charlotte Hall, MD (US);
Wei Chen, Sammamish, WA (US);
Raghavendra Thallam Kodandaramaih, Redmond, WA (US);
Girish Mittur Venkataramanappa, Redmond, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Database recovery can be performed in substantially constant time. From a database transaction log, the state of one or more transactions is identified including those that were active at a time of a crash but not committed. Transactions can be reapplied sequentially starting from the beginning of a last successful checkpoint to the end of the transaction log. Uncommitted user transactions are not undone synchronously, but simply marked as aborted. Subsequently, versions of affected data elements can be reverted back to a prior saved version asynchronously.