Refactoring Legacy T-SQL for Improved Performance: Modern Practices for SQL Server Applications
暫譯: 重構舊版 T-SQL 以提升效能：SQL Server 應用程式的現代實踐

Bohm, Lisa

Refactoring Legacy T-SQL for Improved Performance: Modern Practices for SQL Server Applications
  • 出版商: Apress
  • 出版日期: 2020-01-11
  • 定價: $1,575
  • 售價: 8.0 折 $1,260
  • 語言: 英文
  • 頁數: 236
  • 裝訂: Quality Paper - also called trade paper
  • ISBN: 1484255801
  • ISBN-13: 9781484255803
  • 相關分類: MSSQL、SQL、Refactoring

    • 立即出貨 (庫存 < 3)

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商品描述

Breathe new life into older applications by refactoring T-SQL queries and code using modern techniques. This book shows you how to significantly improve the performance of older applications by finding common anti-patterns in T-SQL code, then rewriting those anti-patterns using new functionality that is supported in current versions of SQL Server, including SQL Server 2019. The focus moves through the different types of database objects and the code used to create them, discussing the limitations and anti-patterns commonly found for each object type in your database.
Legacy code isn't just found in queries and external applications. It's also found in the definitions of underlying database objects such as views and tables. This book helps you quickly find problematic code throughout the database and points out where and how modern solutions can replace older code, thereby making your legacy applications run faster and extending their lifetimes. Author Lisa Bohm explains the logic behind each anti-pattern, helping you understand why each pattern is a problem and showing how it can be avoided. Good coding habits are discussed, including guidance on topics such as readability and maintainability.

What You Will Learn

  • Find specific areas in code to target for performance gains
  • Identify pain points quickly and understand why they are problematic
  • Rewrite legacy T-SQL to reduce or eliminate hidden performance issues
  • Write modern code with an awareness of readability and maintainability
  • Recognize and correlate T-SQL anti-patterns with techniques for better solutions
  • Make a positive impact on application user experience in your organization


Who This Book Is For
Database administrators or developers who maintain older code, those frustrated with complaints about slow code when there is so much of it to fix, and those who want a head start in making a positive impact on application user experience in their organization

 

商品描述(中文翻譯)

為舊有應用程式注入新生命，透過現代技術重構 T-SQL 查詢和程式碼。本書將教您如何透過找出 T-SQL 程式碼中的常見反模式，並使用 SQL Server 的當前版本（包括 SQL Server 2019）所支援的新功能來重寫這些反模式，顯著改善舊有應用程式的效能。重點將涵蓋不同類型的資料庫物件及其創建所使用的程式碼，討論每種物件類型在資料庫中常見的限制和反模式。

舊有程式碼不僅存在於查詢和外部應用程式中，還存在於底層資料庫物件的定義中，例如視圖和表格。本書幫助您快速找到資料庫中有問題的程式碼，並指出現代解決方案可以如何取代舊有程式碼，從而使您的舊有應用程式運行得更快並延長其壽命。作者 Lisa Bohm 解釋了每個反模式背後的邏輯，幫助您理解為何每個模式都是問題，並展示如何避免這些問題。書中還討論了良好的程式編寫習慣，包括可讀性和可維護性等主題的指導。

您將學到的內容：

- 找出程式碼中可針對效能提升的特定區域
- 快速識別痛點並理解其問題所在
- 重寫舊有 T-SQL 以減少或消除隱藏的效能問題
- 編寫現代程式碼時注意可讀性和可維護性
- 辨識並將 T-SQL 反模式與更佳解決方案的技術相關聯
- 對您組織中的應用程式使用者體驗產生正面影響

本書適合對象：

資料庫管理員或開發人員，維護舊有程式碼的人，對於有太多需要修正的慢速程式碼感到沮喪的人，以及希望在改善組織中的應用程式使用者體驗方面取得先機的人。

作者簡介

Lisa Bohm leads a team of database administrators for a software development company. Her history with legacy database code began early in her career with a summer project to rewrite the chemical inventory database for the research division of a local VA hospital. From there, she went on to building front-end web applications. When the web calls timed out, Lisa dug in to learn what databases can do. She has since transitioned into database administration, inheriting and improving legacy applications along the way. Her personal focus remains on solid database architecture and writing well-performing T-SQL.

作者簡介(中文翻譯)

莉莎·博姆領導著一家軟體開發公司的資料庫管理員團隊。她與舊版資料庫程式碼的歷史始於她職業生涯的早期，當時她參與了一個夏季專案，負責為當地退伍軍人醫院的研究部門重寫化學庫存資料庫。從那時起，她開始建立前端網頁應用程式。當網頁呼叫超時時，莉莎深入學習資料庫的功能。此後，她轉型為資料庫管理，並在此過程中繼承並改善舊版應用程式。她個人的重點仍然放在穩固的資料庫架構和撰寫高效能的 T-SQL 上。

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