译者：

杨冬青，1969年毕业于北京大学数学力学系数学专业，现任北京大学信息科学技术学院教授，博士生导师，网络与信息系统研究所副所长，数据库与信息系统研究室主任，中国计算机学会数据库专委会委员。多年来承担并完成973、863国家科技攻关、国家自然科学基金等多项国家重点科研项目;曾获国家科技进步二等奖、三等奖和多项省部级奖励;在国内外科技杂志及会议上发表论文百余篇，著译作十余部。目前的主要研究方向为数据库系统实现技术、Web环境下的信息集成与共享、数据仓库和数据挖掘、典型应用领域的数据库技术等。

Database System Concepts, 5/e, is intended for a first course in databases at the junior or senior undergraduate, or first-year graduate, level. In addition to basic material for a first course, the text contains advanced material that can be used for course supplements, or as introductory material for an advanced course.</p>

The authors assume only a familiarity with basic data structures, computer organization, and a high-level programming language such as Java, C, or Pascal. Concepts are presented as intuitive descriptions, and many are based on the running example of a bank enterprise. Important theoretical results are covered, but formal proofs are omitted. In place of proofs, figures and examples are used to suggest why a result is true.</p>

The fundamental concepts and algorithms covered in the book are often based on those used in existing commercial or experimental database systems. The aim is to present these concepts and algorithms in a general setting that is not tied to one particular database system. Details of particular commercial database systems are discussed in the case studies which constitute Part 8 of the book.</p>

The fifth edition of Database System Concepts retains the overall style of prior editions while evolving the content and organization to reflect the changes that are occurring in the way databases are designed, managed, and used.</p> Key Handles: &#8226; Early coverage of SQL in two chapters &#8226; Think of SQL as doing or creating Queries &#8226; Silberschatz uses a bank analogy throughout his text with Running Examples &#8226; Case studies are incorporated that represent a different database, this is in the last Part of the text &#8226; Focuses on cutting edge material, such as xml, web based database systems