Computer og IT

If you use SQL in your day-to-day work as a data analyst, data scientist, or data engineer, this popular pocket guide is your ideal on-the-job reference. You'll find many examples that address the language's complexities, along with key aspects of SQL used in Microsoft SQL Server, MySQL, Oracle Database, PostgreSQL, and SQLite.In this updated edition, author Alice Zhao describes how these database management systems implement SQL syntax for both querying and making changes to a database. You'll find details on data types and conversions, regular expression syntax, window functions, pivoting and unpivoting, and more.Quickly look up how to perform specific tasks using SQLApply the book's syntax examples to your own queriesUpdate SQL queries to work in five different database management systems NEW: Connect Python and R to a relational databaseNEW: Look up frequently asked SQL questions in the "e;How Do I?"e; chapter

Sharpen your information security skills and grab an invaluable new credential with this unbeatable study guideAs cybersecurity becomes an increasingly mission-critical issue, more and more employers and professionals are turning to ISACA's trusted and recognized Certified Information Security Manager qualification as a tried-and-true indicator of information security management expertise.In Wiley's Certified Information Security Manager (CISM) Study Guide, you'll get the information you need to succeed on the demanding CISM exam. You'll also develop the IT security skills and confidence you need to prove yourself where it really counts: on the job.Chapters are organized intuitively and by exam objective so you can easily keep track of what you've covered and what you still need to study. You'll also get access to a pre-assessment, so you can find out where you stand before you take your studies further.Sharpen your skills with Exam Essentials and chapter review questions with detailed explanations in all four of the CISM exam domains: Information Security Governance, Information Security Risk Management, Information Security Program, and Incident Management.In this essential resource, you'll also:* Grab a head start to an in-demand certification used across the information security industry* Expand your career opportunities to include rewarding and challenging new roles only accessible to those with a CISM credential* Access the Sybex online learning center, with chapter review questions, full-length practice exams, hundreds of electronic flashcards, and a glossary of key termsPerfect for anyone prepping for the challenging CISM exam or looking for a new role in the information security field, the Certified Information Security Manager (CISM) Study Guide is an indispensable resource that will put you on the fast track to success on the test and in your next job.

A comprehensive user’s guide to Inkscape, a vector illustration application.Dmitry Kirsanov, a former core Inkscape developer, shares hisknowledge of Inkscape's inner workings as he shows how to useInkscape to draw with various tools, work with objects, apply realisticand artistic effects, and more. Step-by-step task-based tutorials showyou how to create business cards, animations, technical and artisticdrawings, and graphic assets for games.This second edition covers the new tools, improved text features,advanced new path effects and filters, as well as many new UIconveniences in Inkscape 1.0. A new chapter describes Inkscape'sextensions for both users and developers.Learn how to:Navigate the canvas and customize your workspace and viewsCreate new objects and transform, style, clone, and combine themUse gradients, patterns, filters, and path effects to liven up your workWork with layers, groups, object order, and locks to control your artworkView and manipulate your document’s structure with the XML Editor and the new Objects dialogExport your work to various formats

An up-to-date guide to creating your own fun and useful Raspberry Pi(TM) programs This fully updated guide shows how to create inventive programs and fun games on your powerful Raspberry Pi-with no programming experience required. Programming the Raspberry Pi(TM): Getting Started with Python, Third Edition addresses physical changes and new setup procedures as well as OS updates to the current version 4. You will discover how to configure hardware and software, write Python scripts, create user-friendly GUIs, and control external electronics. Step-by-step projects include a digital clock prototype and a fully functioning Raspberry Pi robot.Configure your Raspberry Pi and explore its featuresStart writing and debugging Python programsUse strings, lists, functions, and dictionariesWork with modules, classes, and methodsApply object-oriented development methodsCreate user-friendly games using PygameBuild intuitive user interfaces with guizeroInterface with hardware using the gpiozero libraryAttach external electronics through the GPIO portAdd powerful Web features to your projects

A motley crew of singing villains. A ragtag team of adventurers. A conflict that could decide the fate of Azeroth itself. It's safe to say that Hearthstone's never looked so exciting!

Volume 3 of the PoC or GTFO series collects humorous poems through to deeply technical essays bound in the form of a bible.

Learn how to use Autodesk Fusion 360 to digitally model your own original projects for a 3D printer or a CNC device.

Based on an extensive study of the actual industry best practices, this book provides a systematic conceptual description of an EA practice and offers practically actionable answers to the key questions related to enterprise architecture.

A manifesto for the neo-luddite revolution: an exhilarating challenge to the way we think about work, technology, progress, and what we want from the future

Rust is an exciting new programming language combining the power of C with memory safety, fearless concurrency, and productivity boosters - and what better way to learn than by making games. Each chapter in this book presents hands-on, practical projects ranging from "Hello, World" to building a full dungeon crawler game.

ASP.NET Core 5 for Beginners is a practical guide for developers for building dynamic and powerful web applications with the ASP.NET Core framework and C#. From basic ASP terminologies to creating a single-page application, and from testing and maintaining the app to deploying it on the cloud, this book covers everything you need to get started.

How do you use PowerShell to navigate the filesystem, manage files and folders, or retrieve a web page? This introduction to the PowerShell language and scripting environment provides more than 400 task-oriented recipes to help you solve all kinds of problems. Intermediate to advanced system administrators will find more than 100 tried-and-tested scripts they can copy and use immediately.Updated for PowerShell 5.1 and Open Source PowerShell up to 7.0 and beyond, this comprehensive cookbook includes hands-on recipes for common tasks and administrative jobs that you can apply whether you're on the client or server version of Windows. You also get quick references to technologies used in conjunction with PowerShell, including regular expressions, the XPath language, format specifiers, and frequently referenced .NET, COM, and WMI classes.Learn how to use PowerShell on Windows 10 and Windows Server 2019Tour PowerShell's core features, including the command model, object-based pipeline, and ubiquitous scriptingMaster fundamentals such as the interactive shell, pipeline, and object conceptsPerform common tasks that involve working with files, internet-connected scripts, user interaction, and moreSolve tasks in systems and enterprise management, such as working with Active Directory and the filesystem

The Data Whisperer''s practical guide to explaining and understanding the strategic value of data management. The need for data management is everywhere across your company. The value of every digitally transformative customer-facing initiative, every data science and analytics-based project, every as-a-service offering, every foray into e-commerce, and every enterprise software implementation is inextricably linked to the successful output of data management efforts. Although it is a simple function of garbage in garbage out, that slogan rarely drives any sustainable executive action. We need to tell a better data story. Data Storytelling is probably the hottest non-technical trend in the technology-related space. But it does not directly support data management because it is focused on analytics or telling stories with data. So, it is time to expand the realm of Data Storytelling to recognize the role of data management by telling stories about data. Learn how to secure stakeholder involvement and executive commitment to fund and support data management as a systematic, consistent, fundamental part of your business. This book is for:Data management leaders trying to explain your value to C-Level and business stakeholders. As a practitioner, you may already know how to fix your data, but your business leaders ignore your advice. When you explain data management to the business, they may nod "yes" on the outside, but they nod off on the inside.Business stakeholders trying to comprehend why data management is important. Many business people may be frightened, threatened, intimidated, or at the very least confused and bewildered by the techno-babble often associated with data-related conversations. If you want to know more about why data management needs to be a strategic imperative in your organization, you''ll learn it here in simple terms.Data scientists looking to understand better how you connect to "The Business." A recurring struggle I hear from data scientists is the need to get "closer to business." If you are a data scientist, then you need to understand your company''s data story. The more you can align your work to the core value your company delivers, the more successful you will be. This book will help you discover the essence of why data brings value to your business.Anyone interested in understanding the business value of data management. I offer simple explanations about why data management is essential for your organization. Without going deep into technical concepts and processes, I focus on the business-related outputs. I share ways you can think about what foundational data does. Its importance is vital for the future of your enterprise.Since this is a book about telling data stories, I share it through stories divided into five sections:My data story. Why I know what I know and why you should listen to me.Everyone''s data story. A collection of classic, foundational data situations relevant to all enterprises.Framing your data story. A set of simple frameworks about data value.Selling your data story. Tips on creating a compelling narrative.Building your data story. Why you must align with the strategic intentions of your enterprise.

Just say "no" to piles of sticky notes and scraps of paper with your passwords and logins! Keep track of them in this elegant, yet inconspicuous, alphabetically tabbed black soft-touch notebook. In this portable hardcover notebook with removable cover band, record the necessarily complex passwords and user login names required to thwart hackers. You’ll find: Internet password safety and naming tipsA to Z tabbed pages with space to list website, username, and password for eachDedicated pages to record software license information, with spaces for license number, purchase date, renewal date, and monthly feeDedicated pages to record network settings and passwords, including for modem, router, WAN, LAN, and wirelessA notes section with blank lined pages This internet password logbook provides an easy way to keep track of website addresses, usernames, and passwords in one discreet and convenient location. With so much of our lives and contact going digital, the Creative Keepsakes journals offer an intimate way to nurture your connection with yourself and the people around you. An entertaining way to get off your screen, these guided and free-form journals are great for writers and artists alike. Each journal offers content around a different theme, including silly prompts for a laugh, random yet thoughtful questions, inspiration for art and composition, interactive prompts to learn about your heritage, and blank interiors on high-quality paper stock to use as your creative canvas. Beautifully designed and full of mindful prompts, channel your inspiration as you put pen (or pencil, or marker, or crayon!) to paper to learn more about yourself, your talents, and the people you love.  Also in this Series: 3,001 Questions All About Me, 3,001 Would You Rather Questions, 3,001 This or That Questions, 301 Things to Draw, 301 Writing Ideas, Anti-Anxiety Journal, Complete the Drawing, Create a Poem, Create a Story, Create Comics: A Sketchbook, Design & Destroy, Forever Friends, Gratitude Journal, Inner Me, Inspired by Prayer, Mom & Me, My Family Story, My Father's Life, My Grandfather's Life, My Grandmother's Life, My Life Story, My Mother's Life, Our Love Story, Sermon Notes, Sketch - Large Black, Sketch - Large Kraft, Sketch - Medium Black, Sketch - Medium Kraft, This is Me, Write - Medium Black, Write - Medium Black

Written by two experienced systems programmers, this book explains how Rust manages to bridge the gap between performance and safety, and how you can take advantage of it.

The follow-up to Cory Althoff's bestselling The Self-Taught Programmer, which inspired hundreds of thousands of professionals to learn to program outside of school!Fresh out of college and with just a year of self-study behind him, Cory Althoff was offered a dream first job as a software engineer for a well-known tech company, but he quickly found himself overwhelmed by the amount of things he needed to know, but hadn't learned yet. This experience combined with his personal journey learning to program inspired his widely praised guide, The Self-Taught Programmer. Now Cory's back with another guide for the self-taught community of learners focusing on the foundations of computer science.The Self-Taught Computer Scientist introduces beginner and self-taught programmers to computer science fundamentals that are essential for success in programming and software engineering fields. Computer science is a massive subject that could cover an entire lifetime of learning. This book does not aim to cover everything you would learn about if you went to school to get a computer science degree. Instead, Cory's goal is to give you an introduction to some of the most important concepts in computer science that apply to a programming career. With a focus on data structures and algorithms, The Self-Taught Computer Scientist helps you fill gaps in your knowledge, prepare for a technical interview, feel knowledgeable and confident on the job, and ultimately, become a better programmer.* Learn different algorithms including linear and binary search and test your knowledge with feedback loops* Understand what a data structure is and study arrays, linked lists, stacks, queues, hash tables, binary trees, binary heaps, and graphs* Prepare for technical interviews and feel comfortable working with more experienced colleagues* Discover additional resources and tools to expand your skillset and continue your learning journeyIt's as simple as this: You have to study computer science if you want to become a successful programmer, and if you don't understand computer science, you won't get hired. Ready for a career in programming, coding, or software engineering and willing to embrace an "always be learning" mindset? The Self-Taught Computer Scientist is for you.

"For interactive websites - updated for PHP 8"--Cover.

Learn how to write secure, network software in idiomatic Go using the language's latest features.

Made in close collaboration with George Lucas and Lucasfilm, this second volume covers the making of the prequel trilogy: Episode I The Phantom Menace, Episode II Attack of the Clones, and Episode III Revenge of the Sith. The XXL tome continues our visual trip through the Star Wars galaxy with an exclusive interview with Lucas, script pages,...

The design patterns in this book capture best practices and solutions to recurring problems in machine learning. The authors, three Google engineers, catalog proven methods to help data scientists tackle common problems throughout the ML process. These design patterns codify the experience of hundreds of experts into straightforward, approachable advice.In this book, you will find detailed explanations of 30 patterns for data and problem representation, operationalization, repeatability, reproducibility, flexibility, explainability, and fairness. Each pattern includes a description of the problem, a variety of potential solutions, and recommendations for choosing the best technique for your situation.You'll learn how to:Identify and mitigate common challenges when training, evaluating, and deploying ML modelsRepresent data for different ML model types, including embeddings, feature crosses, and moreChoose the right model type for specific problemsBuild a robust training loop that uses checkpoints, distribution strategy, and hyperparameter tuningDeploy scalable ML systems that you can retrain and update to reflect new dataInterpret model predictions for stakeholders and ensure models are treating users fairly

JUMPSTART YOUR NEW AND EXCITING CAREER AS A PENETRATION TESTERThe Pentester BluePrint: Your Guide to Being a Pentester offers readers a chance to delve deeply into the world of the ethical, or "white-hat" hacker. Accomplished pentester and author Phillip L. Wylie and cybersecurity researcher Kim Crawley walk you through the basic and advanced topics necessary to understand how to make a career out of finding vulnerabilities in systems, networks, and applications.You'll learn about the role of a penetration tester, what a pentest involves, and the prerequisite knowledge you'll need to start the educational journey of becoming a pentester. Discover how to develop a plan by assessing your current skillset and finding a starting place to begin growing your knowledge and skills. Finally, find out how to become employed as a pentester by using social media, networking strategies, and community involvement.Perfect for IT workers and entry-level information security professionals, The Pentester BluePrint also belongs on the bookshelves of anyone seeking to transition to the exciting and in-demand field of penetration testing.Written in a highly approachable and accessible style, The Pentester BluePrint avoids unnecessarily technical lingo in favor of concrete advice and practical strategies to help you get your start in pentesting. This book will teach you:* The foundations of pentesting, including basic IT skills like operating systems, networking, and security systems* The development of hacking skills and a hacker mindset* Where to find educational options, including college and university classes, security training providers, volunteer work, and self-study* Which certifications and degrees are most useful for gaining employment as a pentester* How to get experience in the pentesting field, including labs, CTFs, and bug bounties