Invention Grant
- Patent Title: Recovery of in-memory databases after a system crash
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Application No.: US17122831Application Date: 2020-12-15
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Publication No.: US11409616B2Publication Date: 2022-08-09
- Inventor: Aditya Gurajada
- Applicant: SAP SE
- Applicant Address: DE Walldorf
- Assignee: SAP SE
- Current Assignee: SAP SE
- Current Assignee Address: DE Walldorf
- Agency: Fountainhead Law Group P.C.
- Priority: IN201811018113 20180515
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F11/14

Abstract:
Data recovery in a database includes performing a backward scan of a transaction log that records transactions made on the database. The backward scan includes traversing log records starting from a latest-in-time log record toward the beginning of the transaction log. Each log record can be replayed to recover data for a database row associated with the log record. An earlier-in-time log record is skipped if the associate database row has been recovered by later-in-time log record.
Public/Granted literature
- US20210103501A1 RECOVERY OF IN-MEMORY DATABASES AFTER A SYSTEM CRASH Public/Granted day:2021-04-08
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