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商品描述
Speed up the execution of important database queries by making good choices about which indexes to create. Choose correct index types for different scenarios. Avoid indexing pitfalls that can actually have indexes hurting performance rather than helping. Maintain indexes so as to provide consistent and predictable query response over the lifetime of an application.
Expert Oracle Indexing and Access Paths is about the one database structure at the heart of almost all performance concerns: the index. Database system performance is one of the top concerns in information technology today. Administrators struggle to keep up with the explosion of access and activity driven by the proliferation of computing into everything from phones to tablets to PCs in our increasingly connected world. At the heart of any good-performing database lies a sound indexing strategy that makes appropriate use of indexing, and especially of the vendor-specific indexing features on offer.
Few databases fully exploit the wealth of data access mechanisms provided by Oracle. Expert Oracle Indexing and Access Paths helps by bringing together information on indexing and how to use it into one blissfully short volume that you can read quickly and have at your fingertips for reference. Learn the different types of indexes available and when each is best applied. Recognize when queries aren’t using indexes as you intend. Manage your indexing for maximum performance. Confidently use the In Memory column store feature as an alternate access path to improve performance. Let Expert Indexing in Oracle Database 12c be your guide to deep mastery of the most fundamental performance optimization structure in Oracle Database.
- Explains how indexes help performance, and sometimes hinder it too
- Demystifies the various index choices so that you can chose rightly
- Describes the database administration chores associated with indexes
- Demonstrates the use of the In Memory column store as an alternate access path to the data
What You Will Learn
- Create an overall indexing strategy to guide your decisions
- Choose the correct indexing mechanisms for your applications
- Manage and maintain indices to avoid degradation and preserve efficiency
- Take better advantage of underused index types such as index-organized tables
- Choose the appropriate columns to index, with confidence
- Blend partitioning and materialized views into your indexing strategy
商品描述(中文翻譯)
加快執行重要的資料庫查詢,通過在創建索引時做出明智的選擇。根據不同的情境選擇正確的索引類型。避免索引陷阱,這些陷阱實際上會對性能產生負面影響,而不是幫助。維護索引以提供一致且可預測的查詢響應,使應用程序在其生命周期內保持穩定。
《Expert Oracle Indexing and Access Paths》是關於幾乎所有性能問題的核心數據庫結構:索引。數據庫系統性能是當今信息技術中的頭等大事。管理員努力跟上由計算機在我們日益連接的世界中無所不在的設備(從手機到平板電腦到個人電腦)所驅動的訪問和活動的激增。任何良好性能的數據庫的核心是一個健全的索引策略,它適當地使用索引,特別是供應商特定的索引功能。
很少有數據庫充分利用Oracle提供的豐富的數據訪問機制。《Expert Oracle Indexing and Access Paths》將有助於將索引和如何使用索引的信息匯集到一本簡短的書中,您可以快速閱讀並隨時參考。了解不同類型的可用索引以及何時應用最佳。識別查詢未按您預期使用索引的情況。管理索引以獲得最佳性能。自信地使用In Memory列存儲功能作為改進性能的替代訪問路徑。讓《Expert Oracle Indexing in Oracle Database 12c》成為您深入掌握Oracle數據庫中最基本的性能優化結構的指南。
解釋索引如何幫助性能,有時也會阻礙性能
揭開各種索引選擇的神秘面紗,以便您能夠正確選擇
描述與索引相關的數據庫管理任務
演示使用In Memory列存儲作為數據的替代訪問路徑
您將學到什麼
創建一個整體索引策略以指導您的決策
為您的應用程序選擇正確的索引機制
管理和維護索引以避免退化並保持效率
更好地利用未充分使用的索引類型,如索引組織表
自信地選擇要索引的適當列
將分區和物化視圖融入您的索引策略中
本書適合對數據庫性能和可擴展性挑戰感到困惑的所有級別的數據庫管理員和應用程序開發人員。任何與索引有關的數據庫管理員都會喜歡這本寶貴的書中充滿的豐富建議。