数据库实践设计作品--网上图书订购管理系统，附完整的E-R图和说明文档，以及全部实现代码和SQL2005项目工程-Database design work in practice- an online book ordering management system, with a complete ER diagrams and documentation, as well as to achieve full code and SQL2005 Project

数据库系统上机实验一到实验四报告，数据表的创建到维护、权限操作都用SQL语言代码完成，报告完整，结构清晰，内含数据库上机实验指导书。(The database system is on the machine experiment one to the experiment four report, the data table creation, the maintenance, the permission operation is completed by the SQL language