Book Image

Microsoft Certified Azure Data Fundamentals (Exam DP-900) Certification Guide

By : Marcelo Leite
5 (1)
Book Image

Microsoft Certified Azure Data Fundamentals (Exam DP-900) Certification Guide

5 (1)
By: Marcelo Leite

Overview of this book

Passing the DP-900 Microsoft Azure Data Fundamentals exam opens the door to a myriad of opportunities for working with data services in the cloud. But it is not an easy exam and you'll need a guide to set you up for success and prepare you for a career in Microsoft Azure. Absolutely everything you need to pass the DP-900 exam is covered in this concise handbook. After an introductory chapter covering the core terms and concepts, you'll go through the various roles related to working with data in the cloud and learn the similarities and differences between relational and non-relational databases. This foundational knowledge is crucial, as you'll learn how to provision and deploy Azure's relational and non-relational services in detail later in the book. You'll also gain an understanding of how to glean insights with data analytics at both small and large scales, and how to visualize your insights with Power BI. Once you reach the end of the book, you'll be able to test your knowledge with practice tests with detailed explanations of the correct answers. By the end of this book, you will be armed with the knowledge and confidence to not only pass the DP-900 exam but also have a solid foundation from which to embark on a career in Azure data services.
Table of Contents (21 chapters)
1
Part 1: Core Data Concepts
7
Part 2: Relational Data in Azure
11
Part 3: Non-Relational Data in Azure
14
Part 4: Analytics Workload on Azure

Introducing SQL

Structured Query Language (SQL) is the most widely used language in relational database platforms for recording, editing, re-editing, and querying operations. SQL was created by Donald D. Chamberlin and Raymond F. Boyce in 1974 in an innovation lab at IBM and has since evolved with DBMSs that use it with Microsoft SQL Server, Oracle Database, MySQL, PostgreSQL, and MariaDB.

SQL has been standardized by ANSI and the International Organization for Standardization (ISO), but each of the RDBMS has some exclusive extended SQL standard instructions, primarily for administration, monitoring, and other operations unique to that RDM.

These unique patterns have names such as the following:

  • T-SQL or Transact-SQL is the version used by Microsoft SQL Server and Azure SQL versions
  • pgSQL is the default of PostgreSQL databases

We will now list some of the additional advantages that made the SQL language the standard used in relational databases.

Key advantages...