公开(公告)号：GB2531537A

公开(公告)日：2016-04-27

申请号：GB201418665

申请日：2014-10-21

Applicant: IBM

Inventor： DANIEL MARTIN ,  NAMIK HRLE ,  CHANDRASEKARAN MOHAN ,  JAMES SPYKER ,  YONGFENG YAO

IPC: G06F17/30

Abstract: A database management system (DBMS) comprising a source database, e.g. a OLTP database, and a target database, e.g. an OLAP database. The DBMS is configured for: asynchronously replicating data changes of the source database to the target database; receiving a request (308) to perform a database statement (T4S4); identifying a most recently committed one (T2) of a plurality of transactions (T1, T2, T3) which committed in the source database before receiving (LSNO the request (308); repeatedly determining if the identified most recently committed one transaction was replicated to the target database; delaying execution of the requested statement (T4S4) in the target database until the evaluation returns that the first transaction (T2) has also been replicated to and has committed in the target database; after the delaying, executing the requested statement (T4S4) in the target database.