jack2gs的博客

T-SQL性能调优秘籍——基于SQL Server 2012窗口函数，书中提及的网站已经打不开了，在github上找到了。路径在附件中。

This book is about the marriage of refactoring—the process of improving the design of existing code—with patterns, the classic solutions to recurring design problems. Refactoring to Patterns suggests that using patterns to improve an existing design is better than using patterns early in a new design. This is true whether code is years old or minutes old. We improve designs with patterns by applying sequences of low-level design transformations, known as refactorings.