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Название: SQL Programming Simplified
Автор: Vanita B
Издательство: Independently published
Год: November 5, 2024
Язык: английский
Формат: pdf
Размер: 16.6 MB

Unlock the power of SQL programming with this comprehensive guide designed for both beginners and experienced developers. Learn how to interact with databases, perform complex queries, and manage data efficiently. This eBook covers essential SQL concepts, practical examples, and advanced techniques to elevate your database management skills. Key Topics Covered: Introduction to SQL: Understand the basics and set up your SQL environment. SQL Basics: Learn essential commands, data types, and simple queries. Advanced SQL Queries: Master joins, subqueries, and aggregate functions. Database Design and Normalization: Design efficient databases and understand normalization principles. Working with SQL Functions: Use scalar, aggregate, date and time, and string functions. Managing Transactions and Concurrency: Handle transactions, isolation levels, and concurrency effectively. Troubleshooting and Debugging: Identify and resolve common SQL issues. This guide ensures you have the skills needed to manage and query databases effectively, making it an indispensable resource for anyone looking to enhance their SQL expertise.

Название: Linux. Карманный справочник
Автор(ы): Дэниел Джей Барретт
Издательство: Спринт Бук
Год: 2025 - 4-е изд.
Страниц: 321
Формат: PDF
Размер: 12 Мб
Язык: русский

Книга идеально подойдет всем, кто каждый день пользуется Linux. В обновленном издании описывается более 200 команд Linux, в том числе новые команды управления файлами, пакетами и версиями исходного кода, преобразования форматов файлов и многие другие.

Название: Cisco Certified Support Technician (CCST) IT Support - 100-140 Official Cert Guide (Final Release)
Автор: Mark Smith, David Bayne, John Pickard
Издательство: Cisco Press
Год: 2025
Страниц: 363
Язык: английский
Формат: epub (true)
Размер: 22.0 MB

Trust the best-selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for the Cisco Certified Support Technician (CCST) IT Support 100-140 exam. Well regarded for its level of detail, study plans, assessment features, and challenging review questions and exercises, Cisco Certified Support Technician (CCST) IT Support 100-140 Official Cert Guide helps you master the concepts and techniques that ensure your exam success and is the only self-study resource approved by Cisco. Leading Cisco technology instructors Mark Smith, David Bayne, and John Pickard provide preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. This book is geared toward new IT professionals and those with an interest in becoming IT support technicians; however, veteran IT professionals just getting into the help desk or needing to obtain the certification will benefit as well.

Название: Windows 11 Simplified, Second Edition
Автор: Paul McFedries
Издательство: Wiley
Год: 2025
Страниц: 148
Язык: английский
Формат: epub (true)
Размер: 101.9 MB

Learn Windows 11 quickly and painlessly with this beginner's guide. Windows 11 Simplified, 2nd Edition is your absolute beginner's guide to the ins and outs of Windows. Fully updated to cover Windows 11 and the latest updates from Microsoft, this highly visual guide covers all the new features in addition to the basics, giving you a one-stop resource for complete Windows 11 mastery. Every page features step-by-step screen shots and plain-English instructions that walk you through everything you need to know, no matter how new you are to Windows. You'll master the basics as you learn how to navigate the user interface, work with files, create user accounts, and practice using the tools that make Windows 11 the most efficient Windows upgrade yet. Learning new computer skills can be intimidating, but it doesn't have to be. Even if you have no Windows experience at all, this visually rich guide demonstrates everything you need to know, starting from the very beginning.

Название: Windows 11 User Manual - 13th Edition 2025
Автор: Papercut Limited
Издательство: Papercut Limited
Год: 2025
Страниц: 148
Язык: английский
Формат: pdf
Размер: 23.0 MB

Everything you need to master Windows 11! Since its release in October 2021, Windows 11 has rapidly become the mainstay operating system for the beginner, intermediate and advanced computer user. It's designed to push the boundaries, to encompass the everyday digital, and help bring us closer together than ever before. It brings a fresh new look, together with powerful new code under the hood. Everything you need to help drive you into the future. This manual will guide you through Microsoft's latest OS, offering you something new to learn on every page and providing you with the necessary knowledge to make Windows 11 work for you. In here you'll find tutorials and tips, secrets of the OS will be unlocked, and your understanding of how everything works will help make you become an advanced user. So, let's dive into Windows and start building both your confidence and understanding of this rather marvellous operating system.

Название: Excel: Your All-in-One Illustrated Guide – Master Excel in Just 7 Days with Practical Exercises & Insider Tips to Boost Your Career. Video Course Included
Автор: Michael Venturino
Издательство: Independently published
Год: 2024
Страниц: 272
Язык: английский
Формат: epub
Размер: 10.1 MB

Microsoft Excel 2024 is a program structured around worksheets. It is a worldwide popular software which allows users to organize, analyse and manipulate data in a tabular format. On its main page, a grid of cells divided into rows and columns can be displayed, where users can enter and save data, perform calculations, and create charts or graphs. Excel offers also several useful functions such as mathematical and data analysis tools, the creation of several functions, and the ability to import and export data to other software. Another useful function allows you to create macro formulas, thus making recurring tasks or calculations automatic. Excel can be used in a wide range of areas as financial analysis, budgeting, accounting, data analysis, project management, and so on. It is undoubtedly an important tool for companies, organizations, and individuals who must manage large amounts of data. This makes Excel widely used in finance, accounting, marketing, and sales, as well as in education, research, and government agencies. This book is designed to help beginners get started with Excel. However, depending on your level of familiarity with the program, you may choose to follow the chapters in order or jump to more advanced concepts.

Название: Run Your Own Mail Server
Автор: Michael W Lucas
Издательство: Tilted Windmill Press
Год: 2024
Страниц: 350
Язык: английский
Формат: pdf (true), epub
Размер: 10.1 MB

You Against the Email Empire. Message services appear and disappear, but email remains. One of the Internet's oldest and most open protocols, email reaches everywhere. Dominated by a handful of carriers, yet still manageable by the rest of us. If you do it right. Setting up the email server is the easy part. The protocols that support email? Those are hard. SPF. DKIM. DMARC. BIMI and MTA-TLS and TLS-RPT. DNS standards that apply to nothing else on the modern Internet. Block lists. Graylisting. Email is a protocol unlike any other, yet among our most essential. This is a book for beginning email operators, but it’s not a book for a beginner sysadmin. You must know how to manage your operating system. You need to back up your hosts, apply security updates, know the difference between network and local sockets, and in general make your hosts fit to sit on the naked Internet. This book assumes and recommends open-source software. I demonstrate everything with Postfix running on FreeBSD or Debian Linux.

Название: Guide to Computer Forensics and Investigations, 7th Edition
Автор: Bill Nelson, Amelia Phillips, Chris Steuart
Издательство: Cengage Learning
Год: 2025
Страниц: 1055
Язык: английский
Формат: pdf
Размер: 42.6 MB

Updated with the latest advances in the field, Nelson/Phillips/Steuart's GUIDE TO COMPUTER FORENSICS AND INVESTIGATIONS, 7th Edition, combines all-encompassing topic coverage, authoritative information from seasoned experts, powerful instructor resources and real-world student applications -- delivering the most comprehensive forensics resource available. The author team's broad range of areas of expertise mirrors the breadth of coverage provided, focusing on techniques and practices for gathering, analyzing and presenting evidence to answer questions about crimes and incidents involving computers and digital devices. GUIDE TO COMPUTER FORENSICS AND INVESTIGATIONS helps students learn digital forensics investigation by providing practical hands-on learning with clear instruction on the tools and techniques used in digital forensics. Students are introduced to every step of the digital forensics investigation process, from lab setup to testifying in court.

Название: Teach Yourself VISUALLY Windows 11, 2nd Edition
Автор: Paul McFedries
Издательство: Wiley
Год: 2025
Страниц: 352
Язык: английский
Формат: epub (true)
Размер: 113.6 MB

A fully illustrated, up-to-date, and start-to-finish guide to using Windows 11 devices. Tired of tech books that tell you what to do but never actually show you how to use your latest devices? Then Teach Yourself VISUALLY Windows 11, 2nd Edition is for you. This book walks you through exactly how to get things done in Microsoft's newest Windows updates with crystal-clear, high-resolution screenshots and pictures that won't leave you scratching your head and wondering, "Why didn't that work?" Teach Yourself Visually Windows 11 is a complete, start-to-finish visual tour of Windows 11. It will take you from "What do I do first?" to Windows guru, one picture and instruction at a time. Looking for help on how to set up your Windows 11 tablet, laptop, or desktop computer for the first time? Teach Yourself Visually Windows 11 has got you covered with the visual interface explanations, Wi-Fi connection assistance, and Microsoft account setup directions you need to make that PC come alive.

Название: Learning AI Tools in Tableau: Level Up Your Data Analytics and Visualization Capabilities with Tableau Pulse and Tableau Agent
Автор: Ann Jackson
Издательство: O’Reilly Media, Inc.
Год: 2025
Страниц: 204
Язык: английский
Формат: epub (true)
Размер: 15,72 MB

As businesses increasingly rely on data to drive decisions, the role of advanced analytics and AI in enhancing data interpretation is becoming crucial. For professionals tasked with optimizing data analytics platforms like Tableau, staying ahead of the curve with the latest tools isn't just beneficial—it's essential. This insightful guide takes you through the integration of Tableau Pulse and Einstein Copilot, explaining their roles within the broader Tableau and Salesforce ecosystems. Author Ann Jackson, an esteemed analytics professional with a deep expertise in Tableau, offers a step-by-step exploration of these tools, backed by real-world use cases that demonstrate their impact across various industries. Predictive analytics and the ways in which something could be predicted expanded from the simple linear regression model of old to much more robust and sophisticated methods. Classification methods, like k-means clustering (available in Tableau) were possible. Machine Learning (ML), both supervised, where the input and output are provided to the model, and unsupervised, where models are given the freedom to derive their own patterns, came into prominence. A computer could now be given a massive amount of data and draw conclusions with varying levels of aid and decision input from humans.