公开(公告)号：GB2533116A

公开(公告)日：2016-06-15

申请号：GB201421916

申请日：2014-12-10

Applicant: IBM

Inventor： MATTHIAS TSCHAFFLER ,  DANIEL MARTIN ,  ANDREAS LOHRER ,  NAMIK HRLE

IPC: G06F17/30

Abstract: A source database is configured for efficiently processing database queries of a first query type (e.g. OLAP) and a target database is configured for efficiently processing database queries of a second query type (e.g. OLTP). A request (302) is received for performing a database statement particularly as regards a query. A latency time (304) and a velocity (306) of replicating data changes is determined and is used for predicting if an execution of the database statement will be finished earlier in the source or target databases (308). The statement request is dispatched to the source or target databases according to which is predicted to finish the request earlier.