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

摘要

Embodiment of the present invention discloses a method and an apparatus of maintaining data for online analytical processing in a database system. The method includes: tracking a changed page in a main process; and synchronizing the changed page to a child process for online analytical processing. In the method and apparatus of maintaining data for online analytical processing the changed pages are tracked and then the child process is synchronized with the changed pages. Therefore periodic forking is avoided fork overhead due to periodic forking in the prior art is removed the synchronization is faster since only the changed pages are synchronized and the performance of online data processing is enhanced.