if DB type is MS SQL,you can use trigger,and define two field.One is Create_Date,second one is Modify_Date.then you can fill these fields when you CReate new record or modify Record. When you login,you can get infomation that be created and modified from last time.
When you login,you can get infomation that be created and modified from last time.
或是在本地动态创建一个txt文件,把每次的操作记录下,每日生成一个文件,
……
方法有n个
传输数据可以考虑这种方式