基于corba技术开发一个考试查询系统，要求：

 　　建立一个数据库，包括学生基本信息表(考试证号，姓名)，考试成绩表(考试证号，科目号，成绩)，考试科目表(考试科目号，科目名称)

 　　服务器提供：

a)　　查询服务：允许用户通过考试证号查询所有科目成绩，或通过考试证号+科目名称查询某一科目成绩

b)　　录入服务：允许管理员对数据库录入考生信息，及其考试成绩

 　　客户可：

a)　　录入：与服务器端录入服务对应

b)　　查询：与服务器端查询服务对应

-Based on corba technology to develop an exam query system requirements: l the establishment of a database, including students basic information table (the exam card number, name), examination results table (exam card number, account number, results), chart of examination (examination subjects No. Subject name) l server: a) inquiry service: allows the user through the query results of all subjects, exam card number or a particular subject results b) Entry Services Examination Certificate No. the+ subjects name query: allows administrators to database entry candidates corresponding to the server-side query service, their test scores l customers: a) Input: corresponding to the server-side entry services b) query: