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 Free database ebooks Other database ebooks Refactoring Databases: Evolutionary Database Design
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 The majority of this book, Chapters 6 through 11, consists of reference material that describes each refactoring in detail. The first five chapters describe the fundamental ideas and techniques of evolutionary database development, and in particular, database refactoring. You should read these chapters in order:Chapter 1, "Evolutionary Database Development," overviews the fundamentals of evolutionary development and the techniques that support it. It summarizes refactoring, database refactoring, database regression testing, evolutionary data modeling via an AMDD approach, configuration management of database assets, and the need for separate developer sandboxes. Chapter 2, "Database Refactoring," explores in detail the concepts behind database refactoring and why it can be so hard to do in practice. It also works through a database-refactoring example in both a "simple" single-application environment as well as in a complex, multi-application environment. Chapter 3, "The Process of Database Refactoring," describes in detail the steps required to refactor your database schema in both simple and complex environments. With single-application databases, you have much greater control over your environment, and as a result need to do far less work to refactor your schema. In multi-application environments, you need to support a transition period in which your database supports both the old and new schemas in parallel, enabling the application teams to update and deploy their code into production. Chapter 4, "Deploying into Production," describes the process behind deploying database refactorings into production. This can prove particularly challenging in a multi-application environment because the changes of several teams must be merged and tested. Chapter 5, "Database Refactoring Strategies," summarizes some of the "best practices" that we have discovered over the years when it comes to refactoring database schemas. We also float a couple of ideas that we have been meaning to try out but have not yet been able to do so. Download free ebooks of database:Refactoring Databases: Evolutionary Database Design
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