Preface Welcome to the Second Edition of the DB2 Universal Database v8 Application Development Certification Guide for IBM's popular relational database servers. Whether you intend to become an IBM Certified Professional, or are looking for a hands-on resource for developing applications for DB2, read on. This book has been updated with the new features found in version 8 and also an entirely new section has been added to help you prepare for the DB2 UDB v8 Family Fundamentals Certification Exam. This book focuses on developing database applications and contains greater detail and information on application development topics than our companion book: DB2 Universal Database v8 Administration Certification Guide. We will also cover the fundamentals of the DB2 client-server environment, database objects, the Structured Query Language (SQL), concurrency, and transactions. This latter material is focused on helping you pass the DB2 UDB v8 Family Fundamentals Exam. How This Book Is Organized This book consists of three parts and several appendices. We also refer to additional resources for many chapters when applicable. The material covered in this book is geared toward becoming an IBM Certified Application Developer-;DB2 UDB v8 Family. This certification requires passing the DB2 UDB v8 Family Fundamentals Exam and the DB2 UDB v8 Family Application Development Exam. More information about DB2 UDB certification can be found at www.ibm.com/certify . Part 1 covers the material for the DB2 UDB v8 Family Fundamentals Exam, and is completely new to this edition. Our companion book, the DB2 UDB v8 Administration Certification Guide covers fundamentals material with additional detail for those who are interested in database administration. We have limited our coverage in this book to focus on passing the Fundamentals Exam and covering material that would be suitable for an application developer. Part 2 covers the material necessary to pass the DB2 UDB v8 Family Application Development Exam. Part 3 contains bonus material intended to help an application developer versed in using DB2 Extenders products. Part 1-;DB2 UDB Family Fundamentals The first part of the book focuses on the DB2 UDB v8 Family Fundamentals Exam so that a reader who wishes to become certified as a DB2 UDB v8 Application Developer can do so with this book alone. The chapters for this section are as follows: Chapter 1-;DB2 Product Overview. Introduces the DB2 suite of products. Chapter 2-;DB2 Tools and Connectivity. Discusses the suite of tools included with DB2 and how to connect to DB2 databases, where applicable. Chapter 3-;Database Objects and Security. Explores the Data Definition Language (DDL) and Data Control Language (DCL) for creating tables, views, schemas, and indexes; and controlling access to them. Chapter 4-;Data Retrieval. Discusses how to select data from tables and views. Chapter 5-;Data Modification. Discusses how to insert, update, and delete data in tables. Chapter 6-;Data Concurrency. Discusses the rules for data access for any application connected to a DB2 database. Part 2-;DB2 UDB Family Application Development Part 2 covers the material necessary to pass the DB2 UDB v8 Family Application Development Exam. Chapter 7-;DB2 Programming Roadmap. Introduces the DB2 client-server environment, database objects, SQL, and the basic structure of a database application. Chapter 8-;DB2 Programming Features and Strategies. Discusses the various programming interfaces that you can use to develop applications with DB2. Chapter 9-;Embedded SQL Programming. Provides a guide to embedded SQL programming within DB2. Chapter 10-;Administrative API. Covers the DB2 Administration and Context Management API that allows you to perform tasks such as backups, restore, and load from within your application code. Chapter 11-;CLI/ODBC Applications. Examines the DB2 CLI/ODBC driver and also discusses programming in OLE DB, using interfaces such as ADO. Chapter 12-;Java Programming. Covers JDBC and SQLj in detail, including how to use each. Chapter 13-;Perl Programming. Discusses writing Perl scripts to access DB2 databases using the Perl DBI. Part 3-;DB2 UDB Extenders Part 3 is a bonus section that explores the DB2 UDB Extenders products. Chapter 14-;DB2 Extenders. Provides an overview of DB2 Extenders products. Chapter 15-;DB2 Text Extender. Provides a guide on setting up, using, and administering DB2 Text Extenders. Chapter 16-;DB2 Net Search Extender. Provides a guide on setting up, using, and administering DB2 Net Search Extenders. Chapter 17-;DB2 AIV Extenders. Provides a guide on setting up and using DB2 AIV Extenders. Chapter 18-;DB2 XML Extender. Provides a guide on setting up, using, and administering DB2 XML Extenders. Chapter 19-;DB2 Spatial Extender. Provides a guide on setting up, using, and administering DB2 Spatial Extenders. Part 4-;Appendices Appendix A-;DB2 Universal Database v8 Certification Test Objectives. Provides a summary of the test objectives of the exam 700 (DB2 UDB v8 Family Fundamentals) and exam 703 (DB2 UDB v8 Family Application Development). Appendix B-;DB2MALL Database. Covers a simple database, called DB2MALL, which is used by our examples in this book. Appendix C-;Application Troubleshooting. Provides a brief how-to on troubleshooting database applications. Contents of CD-ROM We have included a CD-ROM with DB2 trial software. Included in the CD-ROM are the following software packages. DB2 UDB v8 Personal Edition Try-and-Buy Version Instructions to download the DB2 UDB v8 Text, Audio, Image, and Video Extenders DB2 Net Search Extenders DB2 database driver (DBD) v0.73 for Perl DB2MALL database Mall Database We have created a database for an online mall to be used with the Application Development section. The name of the database is DB2MALL, and Appendix B describes how to create it. We also provide a description of all the tables. All of our samples and exercises reference this database, so please familiarize yourself with it. We have simplified many of the tables for simplicity and clarity. Using the DB2 Online Books Throughout this book, we will often refer to the DB2 online books that are installed with every DB2 product. They can also be downloaded in PDF format from the DB2 Product and Service Technical Library at: www-3.ibm.com/software/data/db2/library/ These books provide a wealth of information about configuring and using DB2. Take advantage of them, since they are free. If you are not sure where to look for an answer to a question, there is also a Search feature provided with the online books which is also available on the Web site. We will often refer you to the DB2 online books for further background to allow us to concentrate on more detailed explanations of other topics and to describe advanced concepts.
评分
评分
评分
评分
从一个资深开发人员的角度来看,一本好的技术书籍的价值,往往体现在它对“最佳实践”的提炼上,而非仅仅是对API的罗列。这本书在这方面做得非常出色。我发现它在讲解数据库连接池管理和工作负载管理(WLM)时,展现出超越普通应用开发范畴的视野。它没有止步于客户端如何连接数据库,而是深入到服务器端如何有效地分配资源给不同的应用连接,这一点对于我们这种需要服务于多个部门、负载波动较大的系统尤为关键。书中关于如何使用DB2的异步编程模型来提高I/O密集型操作的吞吐量的部分,对我启发极大。我记得当时正在设计一个高并发的数据导入工具,传统的同步写入方式导致资源争抢严重,在参考了书中关于利用特定API进行批量异步提交的章节后,我成功地将导入时间缩短了近40%。这本书的深度在于,它要求读者不仅仅是一个CRUD操作的执行者,更是一个能够理解数据库资源分配和系统瓶颈的架构思考者。它的排版清晰,图示合理,即使是像锁升级机制这样复杂的主题,也能通过流程图的方式被清晰地梳理出来,避免了纯文字描述可能带来的混淆。
评分这本书的封面设计着实吸引人,那种沉稳的深蓝色调配上清晰的字体,立刻让人感受到它内在的专业性和厚重感。我之所以会选择它,很大程度上是因为我对IBM的DB2数据库技术栈一直保持着高度的关注,尤其是在那个版本迭代较为频繁的时期,寻找一本能够系统梳理认证知识点的权威指南显得尤为重要。初翻阅时,我被其详尽的目录结构所折服,它似乎将DB2 v8环境下应用开发的方方面面都囊括其中,从基础的SQL和XQuery语法的高级应用,到存储过程、用户定义函数(UDF)的复杂编写与调试,再到与各种应用层语言(如Java/JDBC或.NET/ADO.NET)的无缝集成策略,都做了细致的划分。特别是关于性能调优的章节,我记得它深入探讨了查询优化器的工作原理以及如何通过索引设计和SQL重构来榨取系统的最大效能,这对于任何希望在生产环境中部署健壮、高效DB2应用的人来说,都是无价的经验财富。我当时正在为一个大型企业资源规划(ERP)系统的模块进行数据库接口的重构工作,书中关于事务管理和并发控制的论述,为我提供了坚实的理论基础和实操指导,让我能够更加自信地处理那些棘手的死锁和数据一致性问题。这本书绝非是那种浮于表面的速成手册,它更像是一位资深DBA和开发专家手把手带领你深入理解这个强大数据库内核的“内功心法”,对于真正想成为DB2开发专家的技术人员,它提供了坚实的第一块砖。
评分坦白说,最初我有些担心这本“认证指南”会不会过于侧重于应试技巧而牺牲了深入的技术探讨。毕竟,认证考试的内容往往需要一定的取舍。然而,翻开这本书后,我的担忧完全消散了。它展现出一种罕见的平衡感:既满足了认证所需的覆盖面广度和精确性,又没有放弃对底层原理的挖掘。举个例子,当它讨论到XML数据的处理时,它不仅仅罗列了XQuery的语法函数,而是详细对比了使用原生XML类型与BLOB存储XML数据的性能差异和适用场景,这对于需要处理半结构化数据的现代应用来说至关重要。我当时正在尝试优化一个需要频繁在关系数据和XML数据之间进行转换的模块,书中关于DB2内置XML存储过程的性能调优建议,直接帮我找到了性能瓶颈所在——原来是某些内置函数的调用顺序和数据类型的隐式转换导致的额外开销。这本书的行文风格非常直接,不绕弯子,每一个技术点的介绍都附带着清晰的代码片段和预期的输出结果,非常适合那些偏爱“看代码说话”的学习者。它更像是导师而非单纯的参考书,总是能在我迷茫时,用最精准的语言点出问题的核心所在。
评分这本书给我最深刻的印象是它对版本特性深度挖掘的勇气。DB2 v8虽然已是若干年前的版本,但在很多大型企业中,其稳定性和特定功能集仍是核心。市面上很多新书为了追逐最新的版本,往往会轻描淡写地带过旧版本的核心功能。然而,这本指南却非常扎实地覆盖了v8时期引入的那些影响深远的特性,比如对SQL/PL的增强,以及如何更有效地利用DB2的内建优化工具。我特别欣赏它对数据迁移和异构数据库连接(如Federation)的介绍,这在当时很多企业进行系统整合的背景下,是刚需技能。书中对联邦查询的性能注意事项和查询重写规则的分析,远比官方的白皮书更具操作性。它教会了我如何识别那些看似无害的跨平台查询是如何拖垮整个系统的。总的来说,这本书提供了一个全面的、结构化的学习路径,它不仅帮你通过了认证,更重要的是,它为你打下了在真实世界中利用DB2 v8构建和维护高性能企业级应用所必需的知识体系框架。阅读它,就像是获得了一张DB2内部运作的详细蓝图,让你从“使用者”升级为“驾驭者”。
评分我购买这本书的直接动机,其实是源于一次紧迫的职业挑战——公司要求团队在极短时间内掌握DB2 v8下的新型数据访问技术,并以此为基础进行一个遗留系统的现代化改造。市面上很多资料往往停留在概念介绍层面,无法提供那种“干货”——即如何在真实复杂的业务场景中应用这些技术。而这本指南的独特之处在于,它似乎非常贴近实际的认证考试和企业级项目的需求,内容组织逻辑非常紧密,层层递进。我特别欣赏它在讲解面向对象特性(如基于表的继承、结构化类型)时所采用的案例,那些例子并非是教科书式的简单示例,而是模拟了企业数据建模中经常遇到的复杂关系,这使得我对如何利用DB2的高级特性来简化数据模型的理解得到了质的飞跃。此外,书中对于错误处理和异常捕获机制的讲解也极其到位,它不仅告诉你如何写`TRY...CATCH`块,更重要的是解释了不同错误码背后的数据库状态,这在故障排除时简直是救命稻草。我记得有一次,系统出现了一个非常隐蔽的权限拒绝错误,通过回顾书中关于安全模型和权限继承的章节,我迅速定位到了问题根源,避免了一次重大的项目延期。这本书的价值在于,它将晦涩的官方文档转化为可执行、可理解的开发范式,让学习曲线变得平滑而高效。
评分 评分 评分 评分 评分本站所有内容均为互联网搜索引擎提供的公开搜索信息,本站不存储任何数据与内容,任何内容与数据均与本站无关,如有需要请联系相关搜索引擎包括但不限于百度,google,bing,sogou 等
© 2026 book.quotespace.org All Rights Reserved. 小美书屋 版权所有