目录1.开发背景................................................................................................................................................12.需求分析................................................................................................................................................12.1系统目标.................................................................................................................................................12.2需求定义.................................................................................................................................................12.3数据流程.....…........................................................................................................................................23.功能描述................................................................................................................................................24.概念模型设计……................................................................................................................................44.1读者与书籍之间的关系（借阅三元关系）.........................................................................................45.逻辑模型设计和优化.........................................................................................................................55.1图书信息表.............................................................................................................................................65.2读者信息表.............................................................................................................................................65.3管理员信息表.........................................................................................................................................65.5管理员_书籍...........................................................................................................................................75.6管理员_学生...........................................................................................................................................76.物理设计和实施..................................................................................................................................76.1建立索引.................................................................................................................................................76.2SQL语句................................................................................................................................................77、主要数据操作语句..........................................................................................................................117.1管理员操作……....................................................................................................................................117.2读者操作..…….....................................................................................................................................127.3管理员对借阅关系的操作.…….........................................................................................................128.参考文献.............................................................................................................................................12塔里木大...
