| Mobile Computing is a hotspot of current research in computing technology. As an important direction of mobile computing, embedded mobile database management system (EMDBMS) has very important value of research and application.It implements the convenient and unified data management on embedded devices, integrated the technology of the traditional database management system and the special features of the embedded environment.Recently, though there are much important research on EMDBMS, they mostly focuses on the transaction model,data replication under the mobile entironment, little research on the structure ordonnance.Paper analysed the system structure,key technique of the EMDBMS, sufficient considered the destitute resource of the embedded equipments and the levity of the mobile entironment, then detailedly introduces the design scheme of an EMDBMS which is based on module, disparts the system into kernel part and arbitrable part.And then, paper studies and implements the kernel module of the EMDBMS: SQL complier. After discussed and explained the theory of the SQL complier implementation, this paper implements a SQL complier with comprehensive functions, using the JavaCC tools. The data synchronization management is a key module of the system. We studies and implements the module under the SyncML frame.The application of the EMDBMS in the employment management system, which is another research aim. With the undergraduates obtain employment becomes more and more multiplex and the marketable, the intrinsic working mode of the employment supervise department can't seasoned with the requirement. With the application, the undergraduates can predominate employ message and promulgate resume in everywhere and at any moment, and can reflect unexpected case in time. Based on the API which are provided by the EMDBMS, we empolder a special mobile equipment for the HuNan province employment supervise department, set up employment message management platform. |
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