很好的数据库学习图书详细说明学习内容我学习后觉得这本书很有用 并且已经用于实践-good learning library database detailing the content of learning I think that after this book very useful and has been used for practice

数据库优化和深一步的sql强化,并对设计字段和表设计的具体说明(Database optimization and deep step SQL reinforcement and detailed descr iption of design fields and table designs)