说明：  目前，嵌入式系统呈现井喷的发展趋势，而要实现嵌入式终端设备（如PDA）与远程数据库的交互，是一件较为复杂的工程，本文较详细的介绍了PDA与远程数据库的数据同步等问题。
(At present, the embedded system development trends show blowout, and to achieve the embedded terminal equipment (eg, PDA) with the remote database interaction is a more complex project, this article describes a more detailed database on PDA and remote data synchronization, etc.问题.)