### Pragmatic.SQL.Antipatterns：深入解析与实用指南 #### 一、引言 在软件开发领域，数据库设计的重要性不言而喻。一个高效、合理的数据库设计能够极大地提高应用程序的性能，并减少后期维护的成本。然而，在实际工作中，由于种种原因，开发者往往会遇到各种“反模式”（Antipatterns），这些错误的设计或实践可能会导致一系列问题。《Pragmatic.SQL.Antipatterns》一书正是为了帮助开发者识别并避免这些常见的陷阱而编写的。 #### 二、书籍概述 《Pragmatic.SQL.Antipatterns》由Bill Karwin编写，该书不仅是一本详尽的SQL数据库设计指南，更是一部充满实践经验和教训的作品。书中详细介绍了多种数据库设计中的常见错误，并提供了相应的解决方法。作者通过丰富的案例分析，让读者深刻理解到错误设计所带来的后果，并学会如何避免它们。 #### 三、读者反馈摘要 1. **Marcus Adams** — 高级软件工程师 - Marcus Adams强调了最佳实践的重要性，并表示本书汇集了许多人的经验教训，甚至包括他自己的一些失误。他认为如果早些阅读这本书将会受益匪浅。 2. **Frederic Daoud** — 《Stripes: And Java Web Development Is Fun Again》及《Getting Started with Apache Click》作者 - Frederic Daoud认为本书既有趣又实用，软件开发者可以从中学到很多关于反模式及其解决方案的知识。他提到自己在阅读后立即应用了一些技术来改进自己的应用程序。 3. **Darby Felton** — DevBots Software Development联合创始人 - Darby Felton指出，对于软件开发者来说，《Pragmatic.SQL.Antipatterns》是必读书籍之一，因为它帮助团队更好地理解数据库设计选择的影响，并基于需求、期望、测量和实际情况做出最佳决策。 4. **Arjen Lentz** — OpenQuery执行董事，《High Performance MySQL, Second Edition》合著者 - Arjen Lentz赞赏作者Bill的独特风格和幽默感，这使得讨论潜在枯燥话题变得轻松有趣。他认为这本书不仅易于理解，而且方便日后查阅，是一本非常有价值的新资源。 5. **Mike Naberezny** — Maintainable Software合伙人，《Rails for PHP Developers》合著者 - Mike Naberezny认为这本书是多年实践经验的结晶，每个主题都深入探讨，细节关注度超出了他的预期。尽管不是入门级别的书籍，但对于具备一定SQL基础的开发者来说，它是一本宝贵的参考书，能够让读者学到新知识。 6. **Liz Neely** — 高级数据库程序员 - Liz Neely认为这本书非常适合那些掌握基本SQL技能但需要为稍微复杂项目设计数据库的软件工程师。 #### 四、核心知识点 1. **数据库设计反模式** - 作者列举了多种常见的数据库设计错误，如过度规范化、不当使用存储过程等，并解释了这些错误可能带来的问题。 2. **性能优化技巧** - 书中提供了一系列提升数据库性能的方法，包括索引策略、查询优化等。 3. **案例研究** - 通过具体的案例分析，展示了如何识别并修正数据库设计中的问题，以及这些修正对应用程序性能的影响。 4. **最佳实践** - 介绍了一套经过验证的最佳实践，帮助开发者构建高效、可扩展的数据库系统。 5. **实践指南** - 提供了一个逐步的指导框架，帮助读者将所学知识应用于实际项目中，从而避免常见的设计陷阱。 #### 五、总结 《Pragmatic.SQL.Antipatterns》不仅是一本关于SQL数据库设计的参考书，更是每一位从事软件开发工作的人员都应该拥有的宝贵资源。通过学习本书中的知识，开发者可以更好地理解数据库设计的重要性和复杂性，并学会如何构建高性能、易维护的数据库系统。

The Pragmatic Programmer, From Journeyman To Master 英文版 完整pdf版

Drowning in unnecessary complexity, unmanaged state, and tangles of spaghetti code? In the best tradition of Lisp, Clojure gets out of your way so you can focus on expressing simple solutions to hard problems. Clojure cuts through complexity by providing a set of composable tools--immutable data, functions, macros, and the interactive REPL. Written by members of the Clojure core team, this book is the essential, definitive guide to Clojure. This new edition includes information on all the newest features of Clojure, such as transducers and specs. Clojure joins the flexibility and agility of Lisp with the reach, stability, and performance of Java. Combine Clojure's tools for maximum effectiveness as you work with immutable data, functional programming, and safe concurrency to write programs that solve real-world problems. Start by reading and understanding Clojure syntax and see how Clojure is evaluated. From there, find out about the sequence abstraction, which combines immutable collections with functional programming to create truly reusable data transformation code. Clojure is a functional language; learn how to write programs in a functional style, and when and how to use recursion to your advantage. Discover Clojure's unique approach to state and identity, techniques for polymorphism and open systems using multimethods and protocols, and how to leverage Clojure's metaprogramming capabilities via macros. Finally, put all the pieces together in a real program. New to this edition is coverage of Clojure's spec library, one of the most interesting new features of Clojure for describing both data and functions. You can use Clojure spec to validate data, destructure data, explain invalid data, and generate large numbers of tests to verify the correctness of your code. With this book, you'll learn how to think in Clojure, and how to take advantage of its combined strengths to build powerful programs quickly.

pragmatic.software.testing a new book for program testing

The.Pragmatic.Programmer;From.Journeyman.to.Master.pdf 2.38MB 英文版 程序员修炼之道.中文版.pdf 11.4MB 电子工业出版社中文版影印

Pragmatic - Testing.Elixir.2021.7.epub

Metaprogramming is one of Elixir's greatest features. Maybe you've played with the basics or written a few macros. Now you want to take it to the next level. This book is a guided series of metaprogramming tutorials that take you step by step to metaprogramming mastery. You'll extend Elixir with powerful features and write faster, more maintainable programs in ways unmatched by other languages. You'll start with the basics of Elixir's metaprogramming system and find out how macros interact with Elixir's abstract format. Then you'll extend Elixir with your own first-class features, write a testing framework, and discover how Elixir treats source code as building blocks, rather than rote lines of instructions. You'll continue your journey by using advanced code generation to create essential libraries in strikingly few lines of code. Finally, you'll create domain-specific languages and learn when and where to apply your skills effectively. When you're done, you will have mastered metaprogramming, gained insights into Elixir's internals, and have the confidence to leverage macros to their full potential in your own projects.

ruby_movies_for_pragstudios_course

For sharing.

这本书是 Programming Scala 的第二版，估计作者也是为了与大名鼎鼎的 Programming in Scala 区分开来吧，把名字换成了 Pragmatic Scala 了。好书一本。