METHOD AND APPARATUS OF MAINTAINING DATA FOR ONLINE ANALYTICAL PROCESSING IN A DATABASE SYSTEM

摘要

An embodiment of the present invention discloses a method and apparatus for maintaining data for online analysis processing in a database system. The method includes: tracking the changed page in the main process; And synchronizing the changed pages to the child process for online analysis processing. In a method and apparatus for maintaining data for online analysis processing, the changed page is tracked and the child process is synchronized with the changed page. Therefore, the periodic fork is avoided, the fork overhead caused by the periodic fork is eliminated in the prior art, and only the changed page is synchronized, so that the synchronization is speeded up and the performance of the online data processing is improved.