SQL Server 2012 Query Performance Tuning

Invite joy and healing into your life using your own magic with this self-help guide from the author of Witchcraft Therapy, Mandi Em.Witchcraft is a practice where everyone can self-soothe and find their alignment again through performance, play, following impulses, and inviting joy into their lives. Beyond spell jars and candle magic, there’s a whole world of uncommon ways to inject some childlike wonder and play therapy into your daily practice. Now you can pursue joy, healing, and fun, with this guide to finding happiness through magic, filled with straight-talk self-care advice backed up by magical spells, rituals, recipes, meditations, and more!Happy Witch is an uncommon spell book full of witchy self-care spells and rituals that think outside the box of what a witch’s practice usually looks like. From kinetic cloud dough play for moving through your emotions to using dance as a form of manifestation, Happy Witch brings out your inner child to help you undertake your healing throu

本書基於流行穩定版Flink 1.13進行講解，從Flink數據處理思想開始講起，帶領讀者深入理解Flink的基本架構，進而由淺入深結合具體案例進行講解，詳細剖析了Flink中DataStream API的使用，並對Flink中的時間語義、狀態、容錯機制等重要概念進行了詳盡的闡釋。同時，本書還對實際開發過程中常用的Flink SQL、CEP等高層級API進行了細緻講解，以電商網站中的實際應用為場景，提供了大量的代碼實現。本書分為12章：第1～5章，帶領讀者初步認識Flink並編寫基本的Flink程序；第6～10章，深入探討了Flink內部的高級應用。第11～12章，講解了Flink提供的擴展功能。本書適用於大數據的學習者與從業人員，以及院校大數據相關專業的學生，也是大數據學習的必備書籍。

The acclaimed actor’s shockingly prescient novel of speculative fiction “presents a near-future United States torn apart by civil war and deep racial strife” (Tampa Bay Times). America today is teetering on the edge of the alarming vision presented in LeVar Burton’s debut novel, written more than two decades ago . . . In 2012, the first African American president is assassinated by a white extremist―just four days after he is elected. The horrific tragedy leads to riots, financial collapse, and ultimately, a full-on civil war. In its aftermath, millions are left homeless as famine and disease spread throughout the country. But from Chicago, a mysterious voice cries out . . . To Leon Crane, a former NASA scientist now struggling to survive on the streets, the pleas he hears remind him of the wife he could not save―and offer him a chance at redemption.To Jacob Fire Cloud, a revered Lakota medicine man, the voice is a sign that the White Buffalo Woman has returned to unite all the races i

In the darkness of night, magic awaits... Nottingham, 1906 Marietta Stelle longs to be a ballerina but, as Christmas draws nearer, her dancing days are numbered - she must marry and take up her place in society in the New Year. But, when a mysterious toymaker, Dr Drosselmeier, purchases a neighbouring townhouse, it heralds the arrival of magic and wonder in Marietta's life.After Drosselmeier constructs an elaborate theatrical set for her final ballet performance on Christmas Eve, Marietta discovers it carries a magic all of its own - a magic darker than anyone could imagine. As the clock chimes midnight, Marietta finds herself transported from her family's ballroom to a frozen sugar palace, silent with secrets, in a forest of snow-topped fir trees. She must find a way to return home before she's trapped in Everwood's enchanting grip forever. In the darkness of night, magic awaits and you will never forget what you find here... Your favourite authors have fallen under the magical spell

本書分為四篇。第一篇（第1章和第2章）詳細介紹了MariaDB 10.5和MySQL 8.0的新特性，包括安裝步驟、升級方法和注意事項等內容。第二篇（第3～6章）為故障診斷與性能調優，本篇內容基於生產環境下MySQL的故障處理方案整理而成，包括表設計階段範式的理解、字段類型的選取、採用表鎖還是行鎖、MySQL默認的隔離級別與傳統數據庫的區別、SQL語句的優化以及合理利用索引等。第三篇（第7～9章）介紹如何搭建高可用架構，內容包括MariaDB MaxScale高可用架構的實現與讀寫分離、MySQL組複製集群管理，基於TSpider中間件實現分庫分表等。第四篇（第10章）介紹了MySQL Monitor和MySQL Slowquery監控平臺。

葉坦，1988年進入經濟所工作。任中國社會科學院二級研究員、博士生導師, 1993年起獲國務院政府特殊津貼，2012年受聘中國社科院首批“長城學者”。先後任日本學術振興會和國際交流基金研究員、早稻田大學等校客座研究員、《中國社會科學季刊》(香港)學術委員、中國出版集團學術顧問及多種學術刊物和機構的編委、評委等。2008年被聘為浙江大學經濟學院兼職教授，2012年榮聘北京大學經濟學院兼職教授、2016年獲聘中南財經政法大學“文瀾學者”講座教授等。收錄論文編排以發表時間為序。大抵可以反映作者近十幾年來的主要科研情況和學術觀點。

World-class breweries, rugged mountain peaks, and funky college town vibes: dive into the diversity of the Front Range with Moon Denver, Boulder & Colorado Springs. Inside you'll find:Flexible itineraries, like a week exploring Denver, Boulder, and Colorado Springs and day trips to nearby ski resorts and Rocky Mountain National ParkThe top outdoor adventures: Go rafting on the Cache La Poudre river, rock-climb in the Flatirons, or hike slickrock trails to stunning mountain vistas. Ski the fresh powder at Loveland or Winter Park and relax with an après-ski drinkMust-see highlights and unique experiences: Check out a new exhibit at the Denver Art Museum, catch a performance under the open sky at Red Rocks Amphitheatre, or explore the Wild West at the Museum of the American CowboyThe best local flavors: Indulge in the offerings of a farm-to-table restaurant, try gourmet treats at a buzzing public market, or chat with locals over a delicious microbrewHonest advice from Denver local and lif

Timmy is struggling with their inner cowardly lion in this picture book about friendship and overcoming anxiety.Timmy loves nothing more than performing, that is, until they have an audience. They live in the shadow of their inner cowardly lion who loves to come out and ROARall their confidence away. As Timmy dreads the upcoming school play, they form a powerful friendship with their classmate Nia. Together, they work to overcome their shyness and tame the lion. But when its time to take the stage, Timmy feels the familiar swooshof the lions tail.Will Timmy be able to calm their anxiety and put on a show-stopping performance?

One of the defining works of twentieth-century sociology: a revelatory analysis of how we present ourselves to others'The self, then, as a performed character, is not an organic thing ... it is a dramatic effect'How do we communicate who we are to other people? This landmark work by one of the twentieth century's most influential sociologists argues that our behaviour in social situations is defined by how we wish to be perceived - resulting in displays startlingly similar to those of actors in a theatrical performance. From the houses and clothes that we use as 'fixed props' to the 'backstage' of the solitude in which our personas are rehearsed and relaxed, Goffman reveals human character not to be fixed, but fluid and consciously maintained.'Never less than brilliant' New Statesman

2021年是中國共產黨成立一百周年，也是全面建設社會主義現代化國家新征程、向第二個百年奮鬥目標進軍的開局之年。本書以中國共產黨成立以來的百年財政工作為研究對象，分四篇進行詳細論述，內容包括：第一篇是為新中國奠基(1921-1949)，第二篇是財政統一和集中(1949-1978)，第三篇是財政改革與重構(1978-2012)，第四篇是現代財政與國家治理(2012年至今)。全書堅持以史為主、史論結合的原則，旨在總結一百年來中國共產黨領導財政工作的基本經驗和歷史規律，為全面建設社會主義現代化國家提供重要的歷史啟示。

In this gorgeous, queer standalone fantasy, a young musician sets out to expose her rival for illegal use of magic only to discover the deception goes deeper than she could have imaginedperfect for fans of An Enchantment of Ravens!Music runs in Sofi's blood. Her father is a Musik, one of only five musicians in the country licensed to compose and perform original songs. In the kingdom of Aell, where winter is endless and magic is accessible to all, there are strict anti-magic laws ensuring music remains the last untouched art. Sofi has spent her entire life training to inherit her father's title. But on the day of the auditions, she is presented with unexpected competition in the form of Lara, a girl who has never before played the lute. Yet somehow, to Sofi's horror, Lara puts on a performance that thoroughly enchants the judges. Almost like magic. The same day Lara wins the title of Musik, Sofi's father dies, and a grieving Sofi sets out to prove Lara is using illegal magic in her

本書為2012年立項的國家社科基金（西部項目）研究課題，內容涵蓋了寧夏歷代政權建制、歷代移民開發、天下黃河富寧夏、城市變遷與城市文化、城市群建設與經濟動能、沿黃河帶文化遺產、絲綢之路與“一帶一路”建設等，將歷史變遷與文化發展融合在一個全新的歷史時空裡，為人們瞭解和研究黃河文明與寧夏發展歷史提供了多重路徑和不同視角。

E. B. White Read-Aloud winner Mac Barnett celebrates individuality in a story told with tenderness and subtlety.It’s John’s big day at school today―a performance for Sharing Gifts time. His bag is carefully packed and prepared, his classmates are ready, and the curtain is waiting to open. John is nervous, looking out at all the other children staring back at him. But he takes a big breath and begins. Mac Barnett’s compassionate text and Kate Berube’s understated and expressive art tell the story of a kid who finds the courage to show others his talent for dancing.

The youngest ever Nobel Prize laureate, Pakistani women's rights activist Malala Yousafzai, is the 26th hero in the New York Times bestselling picture book biography series This friendly, fun biography series focuses on the traits that made our heroes great--the traits that kids can aspire to in order to live heroically themselves. Each book tells the story of an icon in a lively, conversational way that works well for the youngest nonfiction readers and that always includes the hero's childhood influences. At the back are an excellent timeline and photos. This book features Malala Yousafzai, who first made the news in 2012 after a gunman shot her for being outspoken about a girl's right to learn. After surviving the attack, she established the Malala Fund and continues to use her platform to fight for the right of girls everywhere to receive an education.

A poignant, coming of age story about a Cuban-American girl trying to figure out where she belongs―both in her ballet-loving family and the wider world. Perfect for fans of Front Desk and Merci Suárez Changes Gears.It’s a good thing Sofía Acosta loves dreaming up costumes, because otherwise she’s a ballet disaster―unlike her parents, who danced under prima ballerina Alicia Alonso before immigrating to the suburbs of New York. Luckily, when the Acostas host their dancer friends from Cuba for a special performance with the American Ballet Theatre, Sofía learns there’s more than dance holding her family together. Between swapping stories about Cuba and sharing holiday celebrations, the Acostas have never been more of a team. Then Sofía finds out about the dancers’ secret plans to defect to the United States, and makes a serious mistake―she confides in her best friend, only to discover that Tricia doesn’t want “outsiders” moving to their community. Now Sofía wonders what the other

內容簡介這不僅是一本從原理到使用、從入門到進階講解Greenplum的著作，而且是一本指導企業用更省錢、更高效地方式使用Greenplum構建企業級數據倉庫和數據中台的著作。作者在數據架構和數據倉庫一線工作10餘年，積累了豐富的項目經驗，他用淺顯易懂的語言、貼近生產環境的案例、豐富的示意圖例寫作了本書，能幫助讀者快速掌握具有實戰價值的知識。具體地，閱讀本書你將收穫如下內容：?掌握數據倉庫技術的發展歷程和發展方向；?理解MPP架構的架構特點和實現邏輯；?Greenplum數據庫的安裝和基本操作；?Greenplum數據庫的工作原理；?SQL語句從入門到開發實戰；?Greenplum數據庫ETL相關功能的具體用途；?機器學習、文本處理、圖計算、GIS等的入門知識；?掌握Greenplum數據庫的運維和監控要點；?全面掌握Greenplum數據庫的性能優化；?數據中台的理念和建設路徑；?數據中台從接口到智能化應用的項目實戰；?零售行業數據中台的項目實戰案例。

本書是我社2012年《香港二十八總督》的再版，內容與第一版相同。作者張連興承史家紀傳之傳統，以香港自1843至1997年二十八任總督在任事蹟，織就從第一次鴉片戰爭到回歸之間一百五十餘年的香港近現代史。除記述和評價歷任總督在港作為，本書也介紹了港英治下各時期香港的內外部政治形勢、經濟環境、社會問題、民生狀況，對讀者了解香港今昔頗有助益。

本書是2012年國家社科基金專案*終成果，專案名稱《北魏平城研究--西元五世紀中國都城的演變》。主要包括幾個方面的內容，一、對北魏平城城址佈局的研究，在繼承前人研究的基礎上對平城宮殿、城牆、道路等進行了扎實的考證，對瞭解漢唐都城佈局的演變意義重大。二、對平城發現的文化遺存的研究，涉及名物考證的方方面面，對這些名物的研究不僅有助於我們全面認識西元五世紀北魏平城文化的全貌，加深我們對魏晉南北朝時期歷史

本書一共分為3篇：基礎篇(上)、案例篇和工具篇(下)。基礎篇：從理論基礎和基本原理層面介紹了 MySQL 的安裝與設定、升級和架構，information_schema、sys_schema、performance_schema 和 mysql_schema，MySQL複製、MySQL 交易、SQL 語句最佳化及架構設計基礎知識。案例篇：從硬體和系統、MySQL 架構等方面提出了效能最佳化的十幾個案例，包括：效能測試的基本最佳化概念和最需要關注的效能指標解釋、對 SQL 語句執行慢的基本定位、避免 x86 可用性的一般性方法、節能模式會怎樣影響效能、I/O 儲存作為資料庫最重要的依賴是如何影響資料庫效能的、主備複製不一致可能有哪些原因、字元集不一致會造成哪些效能問題、在實際場景中鎖的爭用是怎樣的。工具篇：介紹了在 MySQL 效能最佳化過程中需要用到的各種工具，包括：dmidecode、top、dstat 等硬體和系統排查工具；FIO、sysbench、HammerDB 等壓力測試工具；mysqldump、XtraBackup 等備份工具；Percona、innotop、Prometheus 等監控工具。--------------------------------------------------------------------------------效能問題：本書解決 MySQL 資料庫效能問題，某種程度來說，MySQL 資料庫效能最佳化問題是一個平行處理的問題，歸根究柢是鎖和資源爭用的問題。其實效能最佳化要做的就是下列事情：•瞭解基本原理。找到事情的因果關係和依賴關係，儘量讓不相關的事情能平行進行。•要事第一。找到目前最重要、最需要最佳化的地方，投入時間和精力，不斷去改進與最佳化。•切中要害。找到耗費時間最長的地方，想盡辦法縮短其時間。機械思維和大數據思維：本書的效能最佳化方法論還是工業革命時代的機械思維，簡而言之，就是尋找因果關係，大膽假設，小心求證。現在已經是資訊時代，理應瞭解什麼是資訊理論，解決問題需要利用大數據思維！讀者對象：（1）MySQL 初學者。（2）專門從事 MySQL 工作1~3年的開發人員和運維人員。（3）資深的 MySQL DBA。

本書一共分為3篇：基礎篇(上)、案例篇和工具篇(下)。基礎篇：從理論基礎和基本原理層面介紹了 MySQL 的安裝與設定、升級和架構，information_schema、sys_schema、performance_schema 和 mysql_schema，MySQL複製、MySQL 交易、SQL 語句最佳化及架構設計基礎知識。案例篇：從硬體和系統、MySQL 架構等方面提出了效能最佳化的十幾個案例，包括：效能測試的基本最佳化概念和最需要關注的效能指標解釋、對 SQL 語句執行慢的基本定位、避免 x86 可用性的一般性方法、節能模式會怎樣影響效能、I/O 儲存作為資料庫最重要的依賴是如何影響資料庫效能的、主備複製不一致可能有哪些原因、字元集不一致會造成哪些效能問題、在實際場景中鎖的爭用是怎樣的。工具篇：介紹了在 MySQL 效能最佳化過程中需要用到的各種工具，包括：dmidecode、top、dstat 等硬體和系統排查工具；FIO、sysbench、HammerDB 等壓力測試工具；mysqldump、XtraBackup 等備份工具；Percona、innotop、Prometheus 等監控工具。--------------------------------------------------------------------------------效能問題：本書解決 MySQL 資料庫效能問題，某種程度來說，MySQL 資料庫效能最佳化問題是一個平行處理的問題，歸根究柢是鎖和資源爭用的問題。其實效能最佳化要做的就是下列事情：•瞭解基本原理。找到事情的因果關係和依賴關係，儘量讓不相關的事情能平行進行。•要事第一。找到目前最重要、最需要最佳化的地方，投入時間和精力，不斷去改進與最佳化。•切中要害。找到耗費時間最長的地方，想盡辦法縮短其時間。機械思維和大數據思維：本書的效能最佳化方法論還是工業革命時代的機械思維，簡而言之，就是尋找因果關係，大膽假設，小心求證。現在已經是資訊時代，理應瞭解什麼是資訊理論，解決問題需要利用大數據思維！讀者對象：（1）MySQL 初學者。（2）專門從事 MySQL 工作1~3年的開發人員和運維人員。（3）資深的 MySQL DBA。

本書主要分為四個模塊，共33章。模塊一主要從基本語法的視角，來詳細介紹 Spring Data JPA 的語法糖有哪些，包括源碼的剖析、實際工作中的經驗分享，以及作者對此的思考、啟發。模塊二從實際工作中的複雜應用場景開始，依次講解自定義場景，如何擴展 Spring 給我們提供的框架、數據源、連接、事務之間的關係，幫助讀者解決實踐中可能會遇到的問題，並學會獨立思考、穩妥解決。模塊三講解了實際工作遇到的經典問題，如 N+1 sql、lazy、事務的問題，及作者對此的思考和解決思路。模塊四從 Spring Data Rest、Spring Data ES、測試用例的角度，擴展思路，展望一下發展方向。

Ballet enthusiasts of all ages will delight in the magical story of The Nutcracker and the magnificent ballet it inspired in this enchanted book packed with colorful illustrations, fun facts, history, music, and the love of dance. Whether The Nutcracker is your first ballet experience or you're already a master dancer, everything you love and want to know about this special, sugar-spun, snow-dusted ballet can be found in these delightful pages. Follow The Nutcracker as it makes its way from page to stage to become the world's most popular holiday ballet. Learn all about the dazzling steps, spins, and jumps choreographed by Petipa, Ivanov, and Balanchine, and meet the famed composer Tchaikovsky. Special sections highlight some of the most famous dancers and companies that have brought the performance and the magic of this ballet to life. Packed with charming illustrations showcasing the beautiful costumes and lavish sets, plus removable poster for you to color, A Child's Introduction to

An insightful memoir from a figure skating champion about her life as a bisexual professional athlete, perfect for readers of Fierce by Aly Reisman and Forward by Abby Wambach. Karina Manta has had a busy few years: Not only did she capture the hearts of many with her fan-favorite performance at the U.S. Figure Skating Championships, she also became the first female figure skater on Team USA to come out as queer. Her Modern Love essay I Can't Hate My Body if I Love Hers was published in the New York Times, and then she joined the circus--Cirque du Soleil's on-ice show, AXEL. Karina's memoir covers these experiences and much more. Attending a high school with 4,000 students, you'd expect to know more than two openly gay students, but Karina didn't meet an out-lesbian until she was nearly seventeen--let alone any other kind of queer woman. But this isn't just a story about her queerness. It's also a story about her struggle with body image in a sport that prizes delicate femininity. It's

When a washed up Hollywood cowboy-turned-circus rodeo actor is shot dead in the midst of his performance at a New York sports-palace, in front of thousands of onlookers, it seems obvious that someone would have seen the perpetrator of the crime--or at the very least, recovered the gun. But when the ensuing investigation fails to turn up any evidence, even after the newsreels made in the moment are reviewed, the net of suspicion widens across the troupe of performers and the circus staff. Who among them is cunning enough to have constructed such a baffling murder scene?Unluckily for the murderer, genius sleuth Ellery Queen is among the thousands that witnessed the crime, and he won't be satisfied until he cuts through the confusion to discover the truth of the execution. By the time he uncovers all the necessary clues and delivers his patented "Challenge to the Reader," Queen (and his most careful readers) will be able to expose both the killer and the hiding place of the weapon--the ti

安全域能刻畫滿足安全性要求下的系統**運行範圍，是研究一個系統最基本的問題。自2012年配電安全域概念提出後，本書首次全面地介紹配電系統安全域理論，梳理其起源和發展過程，闡明配電安全域的概念定義、數學模型、求解方法、觀測手段以及性質機理等基本問題，探討安全域在規劃運行領域的應用，還結合智能電網的新特性，介紹配電安全域理論的**發展。安全域不但能豐富現有的配電網分析理論，而且還是實現配電網安全高效的基礎，具有重要的科學意義和廣闊的應用前景。

本書特色 ★★★★★Power BI最佳著作★★★★★ ☆☆☆☆☆【35個主題】、【283個企業實例】☆☆☆☆☆ 這是目前市面上內容最完整的Power BI圖書，讀者研讀本書可以學會將企業人力資源、市場分析、趨勢預測、業務銷售、財務預測等大數據使用一張圖表表達，讓關鍵數據【凸顯呈現】，執行【智慧決策】、提升職場【競爭力】。 這也是一本從零開始帶領讀者完整學習Power BI的書籍，共有35個章節。完整講解【大數據視覺化】、【智慧決策】、【雲端分享】。每個觀念皆有實例輔助解說，可以增進讀者學習效率。讀者可以使用Power BI學會下列的應用。 ☆【酷炫圖表完全解說】 ☆【圖表色彩分析與最佳化】 ☆【將地圖融入圖表分析數據】 ☆【數據交叉分析】 ☆【凸顯關鍵數據】 ☆【Power Query最強實戰】 ☆【AppSource圖表加值解說】 ☆【設計動態圖表】 ☆【股市分析實戰】 ☆【雲端共同作業】 ☆【手機分享】 有了上述知識，讀者可以輕鬆將上述觀念應用在【人力】、【財務】、【業務】、【行銷】、【趨勢】等提升企業工作效率與自己職場競爭力。

本書根據ISO/IEC GUIDE 98-3：2008《測量不確定度 第3部分：測量不確定度表示指南（GUM：1995）》和JJF1059.1《測量不確定度評定與表示》、JJF1059.2《用蒙特卡洛法評定測量不確定度》和JJF1059.3《測量不確定度在合格評定中的使用原則》以及新版JJF 1059.1-2012《測量不確定度評定與表示》和JJF 1059.2-2012《用蒙特卡洛法評定測量不確定度》等，介紹了測定不確定度的發展歷史，採用測量不確定度的意義，不確定度的評定步驟、來源、數學模型，輸入量的標準不確定度和不確定度分量評估，合成標準不確定度，擴展不確定度，自由度和包含因子，檢測結果的測量不確定度的評定，測量不確定度的表示等；結合不同藥品檢測方法的特點，給出各檢測方法的不確定度評定實例，*後還介紹蒙特卡洛法在藥品檢測中應用及實例。本書可供藥品檢驗機構、藥品研發、生產、營銷、使用單位的從事藥品檢驗、質量管理以及藥物分析研究的人員使用、還可作為供高等院校有關專業的師生參考書。

波浪驅動水面機器人技術作為一個前沿研究熱點，其出現不過十五年，而國內研究起步於 2012 年。《波浪驅動水面機器人》系統、深入地總結了作者近年來在波浪驅動水面機器人技術領域的主要研究成果與工程實踐經驗，凝練並深入探討了波浪驅動水面機器人基礎技術問題。《波浪驅動水面機器人》共 6 章，內容主要包括波浪驅動水面機器人的推進機理分析、總體設計、運動建模與預報、運動控制以及應用分析。

Michael Hattaway's Introduction to this bestselling edition of As You Like It accounts for what makes this popular play both innocent and dangerous. This third edition includes a new section on recent critical interpretations, including sections on ecocriticism, peace studies, and myths of gender, on recent as well as past stage productions and films of the play, as well as fresh illustrations. An appendix on an early court performance in 1599, commentary on the play's language, the book trade, and the discursive cultures of its time, as well as an updated reading list are also included.

A playful yet important story about individual differences and finding ways to belongAll of the animals in the forest can play an instrument, except Edward the Elephant. He tries, and he tries, but all he can do is make a terrible noise.So instead he feels happy just listening, and so much so, that he becomes the band's biggest fan! After walking up late for a performance one day, Edward runs through the jungle . . . DUM DUM DUM DUM . . . and discovers that he is musical after all. He turns out to be the beat the band needed! This is a playful yet important story about individual differences and finding ways to belong.