如何使用Excel和Power BI高效发现数字背后的信息？在数据分析时如何准确写出所需的公式?如何快速响应各方需求，提升自己的价值……答案是使用“数据模型”。 在《Power BI建模权威指南》中，著名的Excel、Power BI专家Alberto Ferrari和Marco Russo将会告诉你关于数据模型的基础知识，并通过多个实例帮助你构建、展示报表，教你通过设计数据模型以快速得到想要的答案，并提升效率。通过阅读，你会发现：找到正确的答案原来如此简单！ 本书不仅适合在校学生、初入职场的白领，也适合那些希望了解数据建模的数据分析师。如果你希望获得资深专家的丰富经验，相信本书也会带给你启发。

To succeed in today's transforming business world, organizations need business intelligence capabilities to make smarter decisions faster than ever before. This Power BI book is an entry-level guide that will get you up and running with data modeling, visualization, and analytical techniques from scratch.You'll find this book handy if you want to get well-versed with the extensive Power BI ecosystem. You'll start by covering the basics of business intelligence and installing Power BI. You'll then learn the wide range of Power BI features to unlock business insights. As you progress, the book will take you through how to use Power Query to ingest, cleanse, and shape your data, and use Power BI DAX to create simple to complex calculations. You'll also be able to add a variety of interactive visualizations to your reports to bring your data to life. Finally, you'll gain hands-on experience in creating visually stunning reports that speak to business decision makers, and see how you can securely share these reports and collaborate with others.By the end of this book, you'll be ready to create simple, yet effective, BI reports and dashboards using the latest features of Power BI.

This book is for BI professionals who wish to enhance their knowledge of Power BI beyond and to enhance the value of the Power BI solutions they deliver to business users. Those who are looking at quick solutions to common problems while using Power BI will also find this book to be a very useful resource .Some experience with Power BI will be useful.

超文本传输协议（Hypertext Transfer Protocol，HTTP）是在万维网上进行通信时所使用的协议方案。HTTP有很多应用，但最著名的是用于web浏览器和web服务器之间的双工通信。 HTTP起初是一个简单的协议，因此你可能会认为关于这个协议没有太多好说的。但现在，你手上拿着的是却一本两磅重 的书。如果你对我们怎么会写出一本650页 的关于HTTP的书感到奇怪的话，可以去看一下目录。本书不仅仅是一本HTTP首部的参考手册；它是一本名副其实的web结构圣经。 本书中，我们尝试着将HTTP中一些互相关联且常被误解的规则梳理清楚，并编写了一系列基于各种主题的章节，对HTTP各方面的特性进行了介绍。纵观全书，我们对HTTP“为什么”这样做进行了详细的解释，而不仅仅停留在它是“怎么做”的。而且，为了节省大家寻找参考文献的时间，我们还对很多HT...(展开全部)

Microsoft Power BI Complete Reference Guide gets you started with business intelligence by showing you how to install the Power BI toolset, design effective data models, and build basic dashboards and visualizations that make your data come to life.In this Learning Path, you will learn to create powerful interactive reports by visualizing your data and learn visualization styles, tips and tricks to bring your data to life. You will be able to administer your organization's Power BI environment to create and share dashboards. You will also be able to streamline deployment by implementing security and regular data refreshes.Next, you will delve deeper into the nuances of Power BI and handling projects. You will get acquainted with planning a Power BI project, development, and distribution of content, and deployment. You will learn to connect and extract data from various sources to create robust datasets, reports, and dashboards. Additionally, you will learn how to format reports and apply custom visuals, animation and analytics to further refine your data.By the end of this Learning Path, you will learn to implement the various Power BI tools such as on-premises gateway together along with staging and securely distributing content via apps. This Learning Path includes content from the following Packt products:Microsoft Power BI Quick Start Guide by Devin Knight et al. Mastering Microsoft Power BI by Brett Powell.

本书是HTTP及其相关核心Web技术方面的权威著作，主要介绍了Web应用程序是如何工作的，核心的因特网协议如何与架构构建块交互，如何正确实现因特网客户端和服务器等。本书适合所有想了解HTTP和Web底层结构的人阅读。

本书是程序员学习核心JavaScript语言和由Web浏览器定义的JavaScript API的指南和综合参考手册。

本书由Rust核心开发团队编写而成，由浅入深地探讨了Rust语言的方方面面。从学习函数、选择数据结构及绑定变量入手，逐步介绍所有权、trait、生命周期、安全保证等高级概念，模式匹配、错误处理、包管理、函数式特性、并发机制等实用工具，以及两个完整的项目开发实战案例。 作为开源的系统级编程语言，Rust可以帮助你编写出更为快速且更为可靠的软件，在给予开发者底层控制能力的同时，通过深思熟虑的工程设计避免了传统语言带来的诸多麻烦。

本书介绍Kafka的技术原理和应用技巧。内容包括如何安装和配置Kafka、如何使用Kafka API、Kafka的设计原则和可靠性保证，以及Kafka的一些架构细节，如复制协议、控制器和存储层。本书列举了一些非常流行的Kafka应用场景，比如基于事件驱动的微服务系统的消息总线、流式处理应用程序和大规模数据管道。通过学习本书，你不仅能够深入理解这项大数据核心技术，还能够将所学知识付诸实践，在生产环境中更好地运行Kafka，并基于它构建稳健的高性能应用程序。

本书要讲述的内容涵盖JavaScript语言本身，以及Web浏览器所实现的JavaScriptAPI。本书第6版涵盖了HTML5和ECMAScript5，很多章节完全重写，增加了当今Web开发的佳实践的内容，新增的章节包括jQuery、服务器端JavaScript、图形编程以及JavaScript式的面向对象。本书不仅适合初学者系统学习，也适合有经验的JavaScript开发者随手翻阅。