Название: CompTIA DataSys+ Study Guide: Exam DS0-001Автор: Mike Chapple, Sharif Nijim
Издательство: Sybex
Год: 2024
Страниц: 459
Язык: английский
Формат: pdf, epub
Размер: 55.3 MB
Your all-in-one guide to preparing for the CompTIA DataSys+ exam.
In CompTIA DataSys+ Study Guide: Exam DS0-001, a team of accomplished IT experts delivers a practical and hands-on roadmap to succeeding on the challenging DS0-001 exam and in a new or existing career as a data systems professional. In the book, you’ll explore the essentials of databases, their deployment, management, maintenance, security, and more.
Whether you’re preparing for your first attempt at the CompTIA DataSys+ exam or for your first day on the job at a new database-related IT position, this book walks you through the foundational and intermediate skills you need to have to succeed. It covers every objective tested by the DS0-001 and skills commonly required in the real-world.
Structured Query Language is the standard programming language for managing and manipulating data stored in relational databases. It is used by organizations of all sizes and in various industries to store, retrieve, and analyze data. SQL is essential for working with relational databases because it allows developers and database administrators to create data structures and manipulate data. Scripting is the process of automating a series of tasks. As you can imagine, a data systems analyst frequently needs to automate routine relational database tasks. Relational databases support SQL, making it easy for developers, analysts, and administrators to use the same language to work with various relational databases, from PostgreSQL to Oracle.
Data Definition Language (DDL) is the flavor of SQL that defines the structure and organization within a relational database. Think of DDL as an architectural blueprint for a building. Similar to how a blueprint outlines the layout of a building, DDL defines the internal structures in a database. You use DDL for creating, changing, or removing database structures, including tables, fields, relationships between tables, indexes, views, and more. Common examples of DDL statements include CREATE, ALTER, and DROP. CREATE creates a new database object, ALTER modifies an existing database object, and DROP permanently removes a database object.
You’ll also find:
Practice test questions that measure your readiness for the real exam and your ability to handle the challenges of a new data systems position
Examples and scenarios drawn from real life, as well as challenging chapter review questions
Complimentary access to Sybex’s interactive online learning environment and test bank, accessible from multiple devices, and including electronic flashcards and a searchable glossary
Perfect for anyone getting ready to write the DS0-001 certification exam, CompTIA DataSys+ Study Guide: Exam DS0-001 is also an essential resource for everyone seeking the foundational knowledge and skills required to move into a database administrator role.
Contents:
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