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PostgreSQL for Jobseekers

Author: Sonia Valeja

Publisher: BPB Publications

Published: 2023-06-22

Total Pages: 319

ISBN-13: 935551400X

A practical guide that will help you learn and leverage PostgreSQL's core features KEY FEATURES ● Acquire in-depth knowledge of PostgreSQL's key capabilities and gain a comprehensive understanding of its inner workings. ● Discover the art of extending PostgreSQL's core features and effectively troubleshooting any challenges that may arise. ● Explore the vibrant community and open-source ecosystem that forms the foundation of PostgreSQL's development and innovation. DESCRIPTION PostgreSQL is a powerful open-source relational database management system (RDBMS) that is widely used in the industry. If you are seeking to acquire knowledge about PostgreSQL, this book is for you. This comprehensive book provides you with a solid foundation in working with PostgreSQL, a popular open-source database management system. It covers a broad spectrum of topics, allowing you to successfully install and configure PostgreSQL across various platforms and methods. By delving into the internal components that constitute a PostgreSQL service and their interplay, you will gain a deep understanding of how these elements collaborate to deliver a robust and dependable solution. From comprehending the process model and shared memory to mastering query execution and optimization, you will acquire comprehensive knowledge of PostgreSQL's internal workings. Furthermore, the book explores essential tasks performed by a database administrator (DBA), including backup and restore operations, security measures, performance tuning, and troubleshooting techniques. Lastly, it explores widely used extensions and compatible tools that can enhance the functionality of PostgreSQL. Upon completing this book, you will have developed a comprehensive understanding of the internal components that comprise a PostgreSQL service and their collaborative dynamics, resulting in a reliable and robust solution. WHAT YOU WILL LEARN ● Gain proficiency in installing and preparing PostgreSQL for various methods and platforms. ● Develop a solid understanding of the internal components of a PostgreSQL service and their collaborative dynamics to deliver a comprehensive solution. ● Acquire knowledge about essential tasks performed by PostgreSQL DBAs, including backup/restore operations, security measures, tuning, and troubleshooting. ● Explore popular extensions and compatible tools that can expand and enhance the capabilities of PostgreSQL. ● Discover the PostgreSQL Community and learn how to actively contribute to the project's development and growth. WHO THIS BOOK IS FOR This book is highly recommended for Entry Level Database Administrators, as it provides a suitable starting point for their journey. It assumes some prior knowledge of Database Management Systems (DBMS) to ensure a smooth learning experience. Additionally, senior or experienced developers will find value in this book, particularly in gaining insights into the latest features incorporated in the most recent version of the DB, enhancing their understanding and proficiency in its use. TABLE OF CONTENTS 1. Introduction to Opensource Database - PostgreSQL 2. Getting PostgreSQL to work 3. Modern Options to get PostgreSQL 4. Global Objects in PostgreSQL 5. Architecture of PostgreSQL 6. PostgreSQL Internals 7. Backup and Restore in PostgreSQL 8. Replicating Data 9. Security and Access Control 10. Most used Extensions/Tools 11. Basic Database Objects 12. Advance Database Objects 13. Performance Tuning 14. Troubleshooting 15. Contributing to PostgreSQL Community

ASP.NET Core for Jobseekers

Author: Kemal Birer

Publisher: BPB Publications

Published: 2021-12-15

Total Pages: 336

ISBN-13: 939139258X

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Learn to develop secure, optimized, well-designed web applications in ASP.NET Core and get ready for job interviews. KEY FEATURES ● Simplified demonstration of ASP.NET Core UI and service development, with expert-led implementation. ● In-depth coverage on async programming, application security, and performance optimization. ● Interview guide with extensive questions based on concepts and techniques around application development. DESCRIPTION ASP.NET Core for JobSeekers is a practical resource for application developers and web developers who want to advance their careers. This book teaches you how to use ASP.NET Core to create web applications without a prior understanding of web application development. We develop our first web application and demonstrate how to execute, debug, and deploy them using ASP.NET Core. We'll start by creating our first web pages with the Razor and then create a simple phonebook application. Next, you will be exposed to the MVC design pattern and explore the simplicity of developing web pages using Razor. Moving on, you learn to construct and consume restful services with ASP.NET Core. Concepts and techniques include async/await pattern, middlewares, programming a pipeline, redirecting requests, and intercepting requests and responses. This book also houses dependency injection techniques, action filters, accessing data using Entity Framework Core, and proven approaches for creating databases. Toward the end, you'll learn about some of the most important components, such as improving performance, choosing the right architecture for an application program, and answering a slew of interview questions about ASP.NET Core and application development. WHAT YOU WILL LEARN ● Learn to set up the application development environment around ASP.NET Core and other frameworks. ● Expert tips for debugging and deploying ASP.NET Core projects. ● Create UI applications with Razor and service APIs. ● Workaround middleware and filters for programming the ASP.NET Core pipeline. ● Create asynchronous programming code and configure dependency injection services. WHO THIS BOOK IS FOR If you're interested in building cross-platform, web, and cloud-native apps, you must learn ASP.NET Core and start building your programs. Readers should have basic knowledge of HTML and C#. TABLE OF CONTENTS 1. Introduction to ASP.NET Core 2. Setting Up the Development Environment 3. Running, Debugging, and Deploying ASP.NET Core Applications 4. Introduction to HTTP, HTML, CSS, and JavaScript 5. Developing ASP.NET Core web applications with Razor 6. Developing Restful services with ASP.NET Core 7. Async/await pattern and middleware in ASP.NET Core 8. Dependency injection and action filters in ASP.NET Core 9. State Management in ASP.NET Core 10. Introducing Accessing Data with ASP.NET Core 11. Optimizing ASP.NET Core Applications 12. Securing ASP.NET Core Applications 13. Introducing Software Architectures 14. Landing a job

.NET 7 for Jobseekers

Author: Filipe Vilhena

Publisher: BPB Publications

Published: 2023-05-09

Total Pages: 229

ISBN-13: 9355518226

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A comprehensive guide to learning .NET 7 KEY FEATURES ● Explore the new features and libraries introduced in .NET 7. ● Master the art of designing views in a .NET 7 application. ● Understand how to leverage the new .NET MAUI framework. DESCRIPTION .NET has transformed the landscape of software development with its versatility and widespread adoption. In today's competitive job market, mastering .NET provides a distinct advantage, regardless of your level of experience. This guide is an invaluable resource for individuals seeking proficiency in the latest version of the .NET framework. The book commences by covering the fundamental aspects of .NET, which includes an overview of the .NET environment, the evolution of the framework, and the latest features and libraries in .NET 7. The book then helps you acquire practical experience by creating a basic ‘Hello World’ program using Razor pages. Next, the book delves deeper into application design, explores essential topics like building views and controllers, performing comprehensive testing, and harnessing the power of .NET MAUI to develop cross-platform applications for iOS, Android, macOS, and Windows. Furthermore, the book discusses other important topics such as Blazor, desktop user interfaces, SignalR, and Orleans, and explains how to integrate databases through MVC. Lastly, it includes a section on frequently asked questions and answers you may encounter while working with .NET. By the end of the book, you will be equipped with the knowledge and skills necessary to develop applications using the latest features and libraries provided by the framework. WHAT YOU WILL LEARN ● Learn how to create your first .NET 7 program using Razor pages. ● Discover how to create controllers for your .NET 7 application. ● Get familiar with the new features and enhancements of Blazor in .NET 7. ● Explore effective strategies for testing views and controllers. ● Learn how to create desktop UIs using .NET. WHO THIS BOOK IS FOR This book caters to a broad audience of programmers, enthusiasts, and beginners who are eager to expand their knowledge of .NET and explore the exciting new features introduced in .NET 7. It also aims to equip you with the necessary skills to improve your job-seeking prospects and confidently address interview questions related to .NET. TABLE OF CONTENTS 1. Introduction to .Net 7 2. New Features and Libraries 3. Writing Your First .Net 7 Program 4. Designing the Views 5. Creating Your Controllers 6. Testing Your Views and Controllers 7. Working with .NET MAUI 8. Blazor in .NET 7 9. Creating a Desktop UI 10. Communication with the Views 11. Use SignalR 12. Adding a Database 13. Orleans 14. Adding Specific Code Using System.Devices 15. Possible Questions and Answers

MongoDB for Jobseekers

Author: Justin Jenkins

Publisher: BPB Publications

Published: 2023-06-07

Total Pages: 433

ISBN-13: 9355518250

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Unlock a world of job opportunities and accelerate your career growth by mastering MongoDB KEY FEATURES ● Master the fundamental principles of Schema Design, Querying, and Database Administration. ● Explore advanced topics, including Aggregation, Replication, and Sharding. ● Develop a fully functional application utilizing MongoDB Cloud Services. DESCRIPTION MongoDB for Jobseekers serves as the ultimate companion, providing assistance and support throughout your entire MongoDB learning journey. Whether you are an experienced professional exploring new career paths or an aspiring jobseeker looking to enhance your opportunities, this comprehensive guide is specifically designed to cater to your needs. From the basics to advanced concepts, MongoDB for Jobseekers offers a well-structured approach to understanding the intricacies of this powerful NoSQL database. The book then delves into subjects like schema modeling, querying, indexing, and scalability, and discovers the reasons behind MongoDB's widespread popularity. Through clear and practical examples, the book will swiftly help you grasp the fundamental concepts and techniques required to work with MongoDB in real-life scenarios. This extensive guide will not only help establish a strong foundation in MongoDB but also unlock numerous job opportunities. Upon completing this book, you will acquire the necessary confidence and expertise to excel in your job search and embark on a rewarding career path. WHAT YOU WILL LEARN ● Gain a comprehensive understanding of MongoDB's architecture and data model. ● Learn to perform CRUD operations (Create, Read, Update, Delete) in MongoDB. ● Understand indexing strategies for optimizing query performance. ● Discover MongoDB's aggregation framework for complex data analysis. ● Learn about MongoDB's high availability and scalability features. ● Explore integration with programming languages and frameworks. WHO THIS BOOK IS FOR Whether you are a novice starting from scratch or a seasoned professional aiming to enhance your database skills, this book is for individuals who aspire to learn about MongoDB, the contemporary "NoSQL" database. TABLE OF CONTENTS 1. Why MongoDB? 2. MongoDB Jobs and Roles 3. Getting Started 4. A Better Way to Store Data – Documents 5. Let’s Do It – Create, Update and Delete Documents 6. Getting What You Want – Querying 7. Complex Data, Made Simple 8. The MongoDB Aggregation Framework 9. Planning for Performance – Collections and Indexes 10. Getting In and Getting Out – Data Migration 11. Make It Great – Configuration and Monitoring 12. Seamless Scaling – Replication and Sharding 13. Being Proactive – Security and Backups 14. Making Stuff – Programming with MongoDB 15. Tools for Success – MongoDB Shell and Compass UI 16. Cloud Services – MongoDB Atlas 17. MongoDB Atlas – Application Services 18. Jobseeker – Interview Prep 19. Conclusion

Connecting People with Jobs Modernising Latvia’s Public Employment Service through Digitalisation

Author: OECD

Publisher: OECD Publishing

Published: 2024-05-24

Total Pages: 142

ISBN-13: 9264671021

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Latvia’s public employment service, the State Employment Agency (SEA), is undertaking a modernisation of its service delivery. This review discusses the SEA’s digitalisation needs and strategy to guide its modernisation efforts. It provides a detailed assessment of the SEA’s digital infrastructure and key recommendations concerning its IT system, analytical capacity and digital tools for jobseekers and employers. This report on Latvia is the fourteenth country study published in this series.

CyberSecurity 101 - Fundamentals for Junior Engineers and Job Seekers

Author: Andreas Constantinides

Publisher: Andreas Constantinides

Published: 2023-04-01

Total Pages: 256

ISBN-13:

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Fundamentals, Networking, Threats, Attacks, Systems and many more - How to Prepare and Succeed. This book is a comprehensive guide to answering core cybersecurity questions that may arise during job interviews for a cybersecurity engineer or consultant position. It covers essential concepts and terminology expected to be known and understood by candidates, helping them become more confident in describing and demonstrating their knowledge during interviews. With this book, readers can verify their knowledge before their interview, identify areas they need to strengthen, and gain a solid understanding of fundamental cybersecurity concepts, including networking, security systems, operating systems, attacks, threats, and certifications, among others. If you are aspiring to enter the field of cybersecurity, I encourage you to explore the book and gain a solid understanding of the fundamentals. Refresh your knowledge, practice with labs, and equip yourself with the necessary skills to secure a job in this field or become a better engineer. For companies, this book can serve as a valuable guide to provide to newly hired employees, helping them get started in their roles with a solid foundation of knowledge.

Golang for Jobseekers

Author: Hairizuan Bin Noorazman

Publisher: BPB Publications

Published: 2023-06-14

Total Pages: 415

ISBN-13: 9355518536

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A comprehensive guide to mastering Golang and boosting your career prospects KEY FEATURES ● Gain a solid foundation in Golang application development, covering essential concepts and techniques. ● Explore the complete lifecycle of Golang applications, from development to successful deployment in production environments. ● Get a roadmap for further learning and skill enhancement after mastering the concepts in the book. DESCRIPTION Golang holds significance because of its emphasis on simplicity, readability, impressive performance, and built-in support for concurrency. If you want to elevate your Golang programming skills and become a more proficient developer, then this book is for you. “Golang for Jobseekers” starts by providing a comprehensive introduction to Go, covering its syntax, fundamental concepts, and unique features that make it an efficient language for development. It delves deeply into data structures and algorithms, equipping you with techniques to optimize your code and solve complex problems with elegance and speed. Furthermore, the book explores the art of building robust RESTful API applications in Go. It teaches you industry best practices and architectural patterns for creating scalable, secure, and maintainable APIs. The book then takes you through a step-by-step journey from development to production, demonstrating how to deploy Go applications in different environments, ranging from virtual machines to containers on Kubernetes. Lastly, it helps you understand essential concepts like monitoring and logging, enabling you to ensure the performance and health of your applications in real-world scenarios. By the end of the book, you will be equipped to confidently showcase your expertise during interviews, giving you a competitive edge in the job market. WHAT YOU WILL LEARN ● Gain proficiency in data structures and algorithms using Golang. ● Learn how to develop a RESTful API application using Golang. ● Acquire the knowledge and skills required to deploy an application to a virtual machine. ● Explore the process of deploying an application in a containerized environment. ● Understand the essential concepts and practices for making applications "production ready”. WHO THIS BOOK IS FOR Ideal for newcomers to the industry, this book explores the entire journey of application development, from concept to production-ready deployment. TABLE OF CONTENTS 1. Understanding Golang and its Potential 2. Golang Fundamentals 3. Exploring Data Structures 4. Understanding Algorithms 5. Getting Comfortable with Go Proverbs 6. Building REST APIs 7. Testing in Golang 8. Deploying a Golang Application in a Virtual Machine 9. Deploying a Containerized Golang Application 10. Microservices with Golang Applications 11. Introduction to Monitoring and Logging 12. Adding Concurrency in Golang Application 13. What is Next?

PostgreSQL 15 Cookbook

Author: Peter G

Publisher: GitforGits

Published: 2023-03-28

Total Pages: 338

ISBN-13: 8119177053

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If you're a PostgreSQL database administrator looking for a comprehensive guide to managing your databases, look no further than the PostgreSQL 15 Cookbook. With 100 ready solutions to common database management challenges, this book provides a complete guide to administering and troubleshooting your databases using latest PostgreSQL 15. Starting with cloud provisioning and migration, the book covers all aspects of database administration, including replication, transaction logs, partitioning, sharding, auditing, realtime monitoring, backup, recovery, and error debugging. Each solution is presented in a clear, easy-to-follow format, using a real database called 'adventureworks' to provide an on-job practicing experience. Throughout the book, you'll learn how to use tools like pglogical, pgloader, WAL, repmgr, Patroni, HAProxy, PgBouncer, pgBackRest, pgAudit and Prometheus, gaining valuable experience and expertise in managing your databases. With its focus on practical solutions and real-world scenarios, the PostgreSQL 15 Cookbook is an essential resource for any PostgreSQL database administrator. Whether you're just starting out or you're a seasoned pro, this book has everything you need to keep your databases running smoothly and efficiently. Key Learnings Streamline your PostgreSQL databases with cloud provisioning and migration techniques Optimize performance and scalability through effective replication, partitioning, and sharding Safeguard your databases with robust auditing, backup, and recovery strategies Monitor your databases in real-time with powerful tools like pgAudit, Prometheus, and Patroni Troubleshoot errors and debug your databases with expert techniques and best practices Boost your productivity and efficiency with advanced tools like pglogical, pgloader, and HAProxy. Table of Content Getting PostgreSQL 15 Ready Performing Basic PostgreSQL Operations PostgreSQL Cloud Provisioning Database Migration to Cloud and PostgreSQL WAL, AutoVacuum & ArchiveLog Partitioning and Sharding Strategies Solving Replication, Scalability & High Availability Blob, JSON Query, CAST Operator & Connections Authentication, Audit & Encryption Implementing Database Backup Strategies Exploring Database Recovey & Restoration Methods Prometheus & Continuous Monitoring Debugging PostgreSQL Audience This book is ideal for database administrators, developers, and IT professionals who are responsible for managing and troubleshooting PostgreSQL databases. It is also suitable for beginners looking to learn more about PostgreSQL administration and best practices.

Kubernetes for Jobseekers

Author: Shivakumar Gopalakrishnan

Publisher: BPB Publications

Published: 2023-02-16

Total Pages: 275

ISBN-13: 9355513518

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Get Tips to Answer the Most Frequently Asked Kubernetes Interview Questions to Ace Your Interview KEY FEATURES ● Gain hands-on experience working with both basic and advanced concepts of Kubernetes, the industry-leading container orchestration system, to proficiently deploy and manage your containers. ● Demystifies the complexities of Kubernetes making it accessible to anyone who is interested in IT. ● Learn how to handle challenges and overcome them while implementing Kubernetes. DESCRIPTION Looking to land a job as a Kubernetes administrator, developer, or maintainer? Our book has got you covered! With clear explanations and practical examples, you'll learn everything you need to know about Kubernetes and ace your interview with confidence. Kubernetes has become the de facto for container orchestration. The explosion in the use of Kubernetes has created a massive demand for Kubernetes administrators, developers, and maintainers. The purpose of this book is to explain the concepts of Kubernetes along with practical examples so that a job seeker can answer interview questions about Kubernetes with confidence. The book starts with the importance of DevOps culture and showing you with examples of how you can incorporate it at the work. Next we cover all the essential Kubernetes components, including Pods, ReplicaSets, Deployments, Services, Ingress Controllers, and PersistentVolumes. The book then deep dives into Docker containers and explains how Kubernetes orchestration helps to scale your containers. It explores multiple ways of launching your Kubernetes cluster and deploying Kubernetes services. To wards the end, the book will help you to review Kubernetes’ capabilities and implementation differences in public cloud platforms such as Azure, AWS, and GCP. Plus, we'll show you the best tips and tools for optimizing performance. And, finally, you'll discover various tools for managing apps at scale. By the end of the book, you will be able to answer the most commonly asked questions in a Kubernetes interview. WHAT YOU WILL LEARN ● Work with Kubernetes services in networking, storage, application /node management, and GitOps. ● Explore tools for monitoring and tuning Kubernetes performance. ● Learn how to diagnose and troubleshoot issues in Pods, Services, and Ingress. ● Use tools to create multi-environment Kubernetes deployments. ● Work with various Kubernetes tools, extensions, and plug-ins. WHO THIS BOOK IS FOR Anyone who wants to be a DevOps/SRE/Kubernetes engineer should buy this book. It is also for professionals who wish to gain a deeper understanding of how Kubernetes works. TABLE OF CONTENTS 1. Kubernetes/SRE/DevOps Career Map 2. Kubernetes Adoption in the Industry 3. Introduction to DevOps/SRE Culture 4. Operating System Fundamentals 5. Containers/Docker 6. Kubernetes Basics 7. Kubernetes Deployment 8. Kubernetes Services 9. Section Summary and Interview Questions and Answers 10. Kubernetes on Various Platforms 11. Kubernetes Performance Optimizations 12. Kubernetes Troubleshooting Tips 13. Kubernetes Tools and Extensions 14. Kubernetes Plugins 15. Kubernetes Questions

Practical PostgreSQL

Author: Joshua D. Drake

Publisher: "O'Reilly Media, Inc."

Published: 2002-01-07

Total Pages: 639

ISBN-13: 1449310109

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Arguably the most capable of all the open source databases, PostgreSQL is an object-relational database management system first developed in 1977 by the University of California at Berkeley. In spite of its long history, this robust database suffers from a lack of easy-to-use documentation. Practical PostgreSQL fills that void with a fast-paced guide to installation, configuration, and usage. This comprehensive new volume shows you how to compile PostgreSQL from source, create a database, and configure PostgreSQL to accept client-server connections. It also covers the many advanced features, such as transactions, versioning, replication, and referential integrity that enable developers and DBAs to use PostgreSQL for serious business applications. The thorough introduction to PostgreSQL's PL/pgSQL programming language explains how you can use this very useful but under-documented feature to develop stored procedures and triggers. The book includes a complete command reference, and database administrators will appreciate the chapters on user management, database maintenance, and backup & recovery. With Practical PostgreSQL, you will discover quickly why this open source database is such a great open source alternative to proprietary products from Oracle, IBM, and Microsoft.