SQL Server 2012 Query Performance Tuning

本書是資深資料庫專家結合其十餘年一線實戰經驗與源碼研究傾力打造的MySQL內核權威指南，全景式解構MySQL 5.7及MySQL 8.0內核設計精髓。作者採用基於SQL執行流的獨特分析範式，通過一條查詢語句的生命週期，串聯起協定解析、資料字典、InnoDB存儲引擎、併發控制等核心模組，揭秘緩衝集區、雙寫緩衝區、自我調整雜湊索引的協同機制，以及B+樹索引的物理操作細節。無論是希望突破技術瓶頸的DBA、追求卓越性能的互聯網架構師，還是資料庫內核開發者，本書都將為你提供從啟動流程到高可用架構（含MGR集群）的完整知識圖譜，通過源碼調試與物理操作剖析，打通從原理認知到性能調優的實踐鏈路。 本書具體內容如下：第1章詳細闡述MySQL內核的發展歷程，並指導讀者如何下載MySQL源碼包以及搭建調試環境；第2章系統介紹MySQL的總體架構；第3章探討用戶端與服務端之間的協定；第4章分析資料字典的結構；第5章詳細介紹InnoDB存儲引擎的架構，包括在執行SQL語句時，InnoDB存儲引擎中的緩衝集區、雙寫緩衝區、自我調整雜湊索引以及後臺執行緒是如何協同工作的；第6章討論InnoDB的檔組織方式，解釋SQL查詢的資料是如何在檔中組織的；第7章揭示InnoDB索引的實現機制，闡述SQL語句是如何在索引上進行資料掃描和插入操作的；第8章闡述MySQL的併發控制機制；第9章介紹MySQL的高可用實現，包括MySQL不同階段的高可用發展及其原理，以及針對MySQL MGR非常詳細的介紹。

If you're playing Minecraft online with friends, you need this cool new collection of amazing Minecraft challenges! This book gives you simple, step-by-step instructions for building amazing arenas, setting up fun quests, and organising server-wide games.Difficulty levels range from easy-to-play games like hide-and-seek and racing, to fun building challenges, and all the way up to huge epic tasks involving all your friends. Best of all, you don't need to mod your copy of Minecraft-all the challenges here can be shared with your friends without any extra downloads or alterations to regular Minecraft. If you're looking to create some spectacular challenges to amuse and amaze your friends, look no further!

This amazing unofficial book gives you everything you need to create over 20 amazing challenges in Minecraft.This amazing unofficial book gives you everything you need to create over 20 amazing challenges in Minecraft.If you're playing Minecraft online with friends, you need this cool new collection of amazing Minecraft challenges! This book gives you simple, step-by-step instructions for building amazing arenas, setting up fun quests, and organising server-wide games.Difficulty levels range from easy-to-play games like hide-and-seek and racing, to fun building challenges, and all the way up to huge epic tasks involving all your friends. Best of all, you don't need to mod your copy of Minecraft-all the challenges here can be shared with your friends without any extra downloads or alterations to regular Minecraft. If you're looking to create some spectacular challenges to amuse and amaze your friends, look no further!

Data Mining: Practical Machine Learning Tools and Techniques, Fifth Edition, offers a thorough grounding in machine learning concepts, along with practical advice on applying these tools and techniques in real-world data mining situations. This highly anticipated new edition of the most acclaimed work on data mining and machine learning teaches readers everything they need to know to get going, from preparing inputs, interpreting outputs, evaluating results, to the algorithmic methods at the heart of successful data mining approaches. Extensive updates reflect the technical changes and modernizations that have taken place in the field since the last edition, including more recent deep learning content on such topics as GANs, transformers, BERT, GPT, VAE, adversarial examples, pre-training and fine-tuning, as well as a comprehensive treatment of ethical and responsible artificial intelligence topics. Authors Ian H. Witten, Eibe Frank, Mark A. Hall, and Christopher J. Pal, along with new

本書全面講述數據庫的基本原理和SQL Server 2022的應用。全書以理論夠用、實用，實踐為第一原則，使讀者能夠快速、輕鬆地掌握SQL Server數據庫技術與應用。全書分三部分共15章，第一部分為基礎篇（第1～4章），講述數據庫的基本理論知識，包括數據庫系統概述、數據模型、關系數據庫系統和數據庫設計；第二部分為應用篇（第5～14章），講述數據庫管理系統SQL Server 2022的應用，包括SQL Server 2022基礎、數據庫的概念和操作、表的操作、數據庫查詢、TSQL編程、視圖和索引、存儲過程和觸發器、事務與併發控制、數據庫系統的安全性、數據庫的備份與還原；第三部分為開發篇（第15章），介紹基於C#.NET 的SQL Server數據庫應用系統開發過程。本書理論和實踐相結合，既闡述了數據庫的基本理論，又結合了SQL Server 2022數據庫管理系統的應用； 內容翔實，實例豐富，圖文並茂，體系完整，通俗易懂，有助於讀者理解數據庫的基本概念，掌握要點和攻克難點。為便於學習，每章配有豐富的習題； 書後的附錄中還包含每章的實驗，供讀者進行操作實踐。本書可作為高等院校計算機相關專業“SQL Server數據庫”課程的教學用書，也可作為培養數據庫系統工程師的培訓教材，還可作為數據庫管理人員及數據庫應用系統開發人員的參考用書。

Discover the #1 New York Times bestselling training system that has developed world champions—a step-by-step manual for mastering your mind for peak performance and living with absolute fullness of life. Inner Excellence shows you how to: Develop self-mastery—and let go of what you can’t control.Overcome anxiety—and build powerful mental habits.Remove mental blocks—and get out of your own way.Train your subconscious mind—and release limiting beliefs.As a professional baseball player in the Chicago Cubs organization, Jim Murphy’s sense of worth revolved around results. He was focused on achievement but also afraid of failure. When he started coaching professional and Olympic athletes, he often encountered the same mindset. He became obsessed with learning how the best in the world performed with poise under pressure. After years of research, Murphy had a revelatory insight: the pursuit of extraordinary performance and the pursuit of the best possible life are th

Who is nameless Naga? What became of the remaining eighteen sadhus and sadhvis who stood against the brutal Afghans? Where does Krishna go with his unflinching devotion? And what does the mysterious Adhiraj know about the real war being fought--inside the hearts of those who dare to pursue their legacy, as much as in the fields? What is the fate of Ahmad Shah Abdali? What will become of Gokul? Will the Nagas retain the Dharma they fought so valiantly to protect? The story follows fate, myth, and history that dance together in a way that is truly epic. A tale of fidelity, selflessness, and unwavering commitment brings together mystical fighters, mesmerized troops, and formidable avatars. Get ready for an adventure where each response raises a new query and where the shockingly brave and betrayed moments disclose the real stakes. Explore the thrilling follow-up to The Naga Warriors as the nameless Naga solves the puzzles.

One woman, the performance of a lifetime. Or two. An exhilarating, destabilizing M鐽ius strip of a novel that asks whether we ever really know the people we love.Two people meet for lunch in a Manhattan restaurant. She's an accomplished actress in rehearsals for an upcoming premiere. He's attractive, troubling, young--young enough to be her son. Who is he to her, and who is she to him? In this compulsively readable, brilliantly constructed novel, two competing narratives unspool, rewriting our understanding of the roles we play every day - partner, parent, creator, muse - and the truths every performance masks, especially from those who think they know us most intimately. Taut and hypnotic, Audition is Katie Kitamura at her virtuosic best.

新中國成立以來，我國的國防科技事業得到了前所未有的發展，取得舉世矚目的成就。本書以歷史文獻和資料為基礎，分為創業奠基、獨立自主、開放合作和跨越發展四個部分，分別從領導管理體制演變、國防科技工業的建設、武器裝備發展等方面，系統梳理和闡述了1949年至2012年中國國防科技工業發展的歷史，力圖使廣大讀者對中國國防科技工業的發展歷程和經驗成就有較深入的瞭解，從中得到鼓舞和啟迪。

本書以Spark大數據分析的常用技術與真實項目相結合的方式，深入淺出地介紹Spark大數據分析的重要內容。全書共8個項目，內容包括廣告流量檢測違規識別流程分析、Spark大數據環境安裝搭建、基於Hive實現廣告流量檢測數據存儲、基於Spark SQL實現廣告流量檢測數據探索分析、基於Spark SQL實現廣告流量檢測數據預處理、基於Spark MLlib實現廣告流量檢測違規識別模型構建與評估、基於Spark開發環境實現廣告流量檢測違規識別，以及基於TipDM大數據挖掘建模平臺實現廣告流量檢測違規識別。本書項目2～項目7都包含知識測試和技能測試，通過練習和操作實踐，讀者可鞏固所學的內容。本書可以作為大數據分析相關課程的教材，也可以作為數據分析愛好者的自學用書。

本書對接世界技能大賽要求，以目前被廣泛應用的Windows Server為例，採用教、學、做相結合的模式，著眼實踐應用，以企業真實案例為基礎，全面、系統地介紹活動目錄在企業中的應用。全書分為3個部分：構建AD DS環境、配置與管理組策略和管理與維護AD DS。本書結構合理，知識全面，案例豐富，語言通俗易懂。本書採用“任務驅動、項目導向”的方式，注重知識的實用性和可操作性，強調職業技能訓練。本書所有項目的知識點、技能點和項目實訓操作都已錄製成微課或慕課，並以二維碼形式嵌入相應位置，讀者可通過掃碼觀看。本書適合作為普通高等院校、職業院校計算機網絡相關專業活動目錄的配置與管理課程的教材，也可作為網絡系統管理工程師、網絡系統運維工程師的自學參考書，是網絡工程師應備的學習寶典。

本書從初學者的角度出發，結合機械製圖相關規範和標準，以常用機械零件、機械設備及機械產品為例，系統地講述了使用AutoCAD 2012進行機械製圖的過程及其在機械製圖與相關專業設計繪圖的應用，包括AutoCAD 2012概述、機械製圖基本知識、二維繪圖與編輯、文字與尺寸標注、剖面與剖視圖的繪製、零件圖與裝配圖的繪製、軸測圖的繪製、尺寸文字標注、三維基本操作，以及機械製圖的打印輸出等內容。

本書圍繞大數據流處理領域，介紹Flink DataStream API、時間和窗口、狀態和檢查點、Table API和SQL等知識。本書以實踐為導向，使用大量真實業務場景案例來演示如何基於Flink進行流處理。本書主要面向對大數據領域感興趣的本科生、研究生，想轉行到大數據開發行業的在職人員，或有一定大數據開發經驗的相關從業人員。讀者最好有一定的Java或Scala編程基礎，掌握計算機領域的常見技術概念。

全書共13章，以案例是主線講解SQL2008。教材內容的安排是基於案例和項目。案例貫穿於整個教材的內容安排，在教材中，通過一個實際的開發案例來組織學習內容。在教材最後一章，通過一個實際的項目，來對整本教材內容進行一個總結和回顧。

本書共11章，由淺入深地介紹了Kubernetes的相關技術。主要內容包括容器的發展史，Kubernetes的核心概念，Kubernetes的安裝與部署，Kubernetes的基本單位Pod，Kubernetes中的各種控制器，Kubernetes發佈服務的方式，Kubernetes中的存儲卷與用法，Kubernetes中的幾種實用擴展，Kubernetes管理資源的方式與Pod的調度原理，API Server的基本使用方式及身份認證與授權方式等。本書適合開發人員、運維人員、測試人員閱讀，同時也適合對Kubernetes或容器技術感興趣的讀者閱讀。

本書系統全面的介紹了有關Oracle程序開發所涉及的各類知識。全書共分13章，內容包括數據庫的基本概念與Oracle環境、數據庫創建、表與表數據操作、數據庫的查詢和視圖、索引和數據的完整性、PL/SQL語言介紹、存儲過程和觸發器、高級數據類型、系統安全管理、備份和恢復、閃回操作和Undo表空間、其他概念、課程設計――企業人事管理系統。

本書選取某新零售行業的公司為原型，通過整合來自企業經營的大數據和來自互聯網的大數據，結合大量豐富的企業管理與業務案例場景，從大數據采集、處理、挖掘、可視化分析，到決策與優化改善，逐步展開，幫助讀者瞭解大數據的技術基礎（Python、SQL），掌握大數據采集、處理的方法，具備應用典型的大數據算法進行價值挖掘的能力，具備結合企業經營管理場景進行大數據可視化分析、決策的能力。本書共分為三個部分：第一部分“大數據概述”，主要介紹大數據的基本概念，大數據的應用場景；第二部分“大數據技術基礎”，主要介紹python基本語法、python數據采集、python數據處理、python可視化分析、SQL基礎等相關內容；第三部分為綜合案例，結合新零售企業的案例背景，介紹大數據采集、處理、挖掘的應用以及大數據可視化分析、大數據決策分析、優化改善的思路和方法。

本書對標《全國計算機等級考試二級MySQL數據庫程序設計考試大綱》，結合Oracle認證考試(SQL認證）以及“l+X"Web前端開發職業技能等級考試內容編寫而成。本書採用MySQL8.0版本，將MySQL8.0的新特性、新功能寫入教材，主要講述數據庫設計的基本原理和基本方法、MySQL基礎及其應用。全書共11個項目(26個任務），包括認識數據庫，MySQL實訓環境配置，MySQL字符集與數據類型，建庫、建表與數據表管理，數據查詢、數據處理與視圖，創建和使用程序，數據庫安全與性能優化，PHP基礎及訪問MySQL數據庫，訪問MySQL數據庫，phpMyAdmin操作數據庫以及MySQL集群架構搭建實例。本書可以作為高職高專學生的數據庫教材，也可以作為全國計算機等級考試二級MySQL數據庫程序設計、Oracle認證考試(SQL認證）以及“l+X"Web前端開發職業技能等級考試的參考教材，還可以作為數據庫開發人員的實用參考書或者職業培訓教材。

《跟李銳學Excel數據分析》是作者20年實戰經驗的總結、提煉，彙集了職場人在實際工作中常見的需求。書中結合具體場景，以實例的形式講解Excel 常用技術，能夠幫助讀者有效提高工作效率。跟李銳學Excel，提高工作效率、快樂生活。《跟李銳學Excel數據分析》共13 章，覆蓋Excel 函數與公式、數據透視表、商務圖表、動態圖表、數據管理、數據可視化、多表合併、數據看板、Power Query、Power Pivot 等技術。本書根據實際工作流程安排內容，各章環環相扣，從數據錄入到數據管理，從多表合併到函數建模，從數據可視化到專業數據看板分析，輔以案例，在傳授方法的同時解析思路，以便讀者能夠舉一反三、學以致用。《跟李銳學Excel數據分析》內容翔實、圖文並茂，包含豐富專業的實用技術。

本書分為8章, 第1章為AltiumDesigner24高級功能部分, 介紹整個設計流程中可能需要使用的高級功能; 第2章為設計規則的高級應用部分, 介紹多層板中常見的規則、Query語句的設置及應用、規則的導入和導出; 第3章為疊層應用及阻抗控制部分, 介紹疊層添加劑和阻抗的計算等; 第4章為PCB總體設計要求及規範, 介紹PCB常見設計規範、拼版、PCB表面處理工藝、組合裝配等; 第5章為EMC設計規範, 包括EMC概述、常見EMC器件、佈局、佈線等; 第6-8章為進階實例部分, 包含4層STM32開發板、4層MT6261智能手錶 (HDI設計)、6層全志A64平板電腦3個完整案例的講解。

Multirate Signal processing can improve system performance and reduce costs in applications ranging from laboratory instruments, cable modems, wireless systems, satellites, Radar, Sonar, and consumer entertainment products. This second edition continues to offer a systematic, clear, and intuitive introduction to multirate signal processing for working engineers and system designers. Significant new material and fresh concepts, including Green Signal Processing techniques have been introduced.The author uses extensive examples and figures to illustrate a wide range of multirate techniques, from basic resampling to leading-edge cascade and multi-stage filter structures. Along the way he draws on extensive research and consulting experience to introduce processing “tricks” shown to maximize performance and efficiency. Coverage includes:• Effect of sampling and resampling in time and frequency domains• Relationships between FIR filter specifications and filter length (# of taps)• Window de

The first ever picture-book biography for readers aged 4-7 years of the performance art pioneer – Marina AbramovicMarina Abramovic is a world-famous artist who uses her body to perform in unexpected and unusual ways that make an audiences think.She once sat back-to-back with her partner and had their hair tied together for over 17 hours. Another time, museum visitors watch her scrub 1,500 cow bones for six hours a day.This innovative book tells an inspiring story about the pioneering performance artist who is also the first female artist to hold a major solo exhibition at the Royal Academy of Arts in London.This special celebration for young readers of one of the most important contemporary woman artists of our time features striking black-and-white and red illustrations printed in Pantones throughout, together with a reproduction of the artist's work and a brief biography at the back of the book. In this innovative volume, Marina Abramovic and her cutting-edge work are brought to life