THE DATA SYNCRONIZATION PROCESS OF HETEROGENEOUS DATABASE SYSTEMS USING SOAP(SIMPLE OBJECT AECCESS PROTOCOL) AND TIMESTAMP MECHANISM

摘要

A process for synchronizing data among heterogeneous databases using an SOAP(Simple Object Application Protocol) and a time stamp is provided to minimize access time for the changed data, save a storage space, and widely support data communication between heterogeneous platforms and databases. The process of a sync server comprises an extracting process and a loading process. The extracting process finds out a data set changed after the latest sync time by comparing the time stamp with the latest data sync time by previously setting an attribute for recording the time stamp when a data schema of the database is configured. The loading process receives the changed data set from the extracting processor through a SOAP mode.