公开(公告)号：US10162710B2

公开(公告)日：2018-12-25

申请号：US15361946

申请日：2016-11-28

Applicant: SAP SE

Inventor： Yong Sik Kwon ,  Hyeong Seog Kim ,  Kyu Hwan Kim ,  Seyeong Bae ,  Joo Yeon Lee ,  Beomsoo Kim ,  Juchang Lee ,  Marcel Birn

IPC: G06F11/14 ,  G06F17/30

Abstract: A computer implemented method is provided. The method comprises initializing a first database image of a first database system based on a recovery image comprising committed transactions, visible uncommitted transactions, and undo logs associated with the visible uncommitted transactions, undoing the visible uncommitted transactions using the undo logs, generating redo logs from the undo logs, replaying the redo logs to create invisible uncommitted transactions, and after replaying the redo logs, replaying transaction logs received from a second database system. Related apparatus, systems, techniques and articles are also described.