How to observe the changes made in Remote sql database table from android

Currently am developing an android application in which i wish to intregrate the webservices and save the received datas in my sqlite database.Further if there is any changes in my remmote sql i wish to update the same thing in my sqlite too.How can i acheive this..is there any way to acheive this.I just stuck in this thing for more than 2 days.