Book Image

Learning Azure DocumentDB

By : Riccardo Becker
Book Image

Learning Azure DocumentDB

By: Riccardo Becker

Overview of this book

Learning DocumentDB adopts a practical, step-by-step approach to help you learn the basics of DocumentDB and use your new-found abilities in real-life scenarios and enterprise solutions. We start with the absolute basics, such as setting up a DocumentDB environment, and guide you through managing your databases, and executing simple and complex queries. Next, we explain how to work with DocumentDB using the open REST protocol, and demonstrate how JavaScript works with DocumentDB. We’ll also show you how to authenticate and execute queries. Moving on, you’ll find out how to use DocumentDB from within Node.js to kick-start your Node.js projects. Next, you’ll discover how to increase the performance of your DocumentDB database and fine-tune it. Finally, you’ll get to grips with using DocumentDB in conjunction with other services offered from the Microsoft Azure platform.

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Learning Azure DocumentDB
Riccardo Becker
Nov, 2015 | 152 pages
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Table of Contents (15 chapters)
Learning Azure DocumentDB
Learning Azure DocumentDB
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with DocumentDB
Getting Started with DocumentDB
What is DocumentDB?
Exploring the data model
DocumentDB versus other databases
Understanding the price model
Building your first application
Summary
2
Setting up and Managing Your Database
Setting up and Managing Your Database
Managing your keys
Using resource tokens
Managing alerts
Summary
3
Basic Querying
Basic Querying
Creating resources
Reading resources
Updating documents
Deleting documents
Summary
4
Advanced Querying
Advanced Querying
Using the SELECT statement
Using the FROM clause
Using the WHERE clause
Using built-in functions
Building stored procedures
Building triggers
Building user-defined functions
Using LINQ to DocumentDB
Summary
5
Using REST to Access Your Database
Using REST to Access Your Database
Understanding the basics of REST
Querying DocumentDB resources
Getting all databases
Adding a document
Summary
6
Using Node.js to Access Your Database
Using Node.js to Access Your Database
Introducing Node.js
Utilizing DocumentDB from Node.js
Summary
7
Advanced Techniques
Advanced Techniques
Introducing indexes
Partitioning data
Managing performance
Using transactions
Setting consistency levels
Summary
8
Putting Your Database at the Heart of Azure Solutions
Putting Your Database at the Heart of Azure Solutions
Introducing an Internet of Things scenario
Increasing search capabilities
Enhancing security
Migrating data
Summary
Index
Index

Using LINQ to DocumentDB

We have already seen some aspects of LINQ to DocumentDB in previous chapters but in this section we describe it in much more detail. We have seen ways to query our database using SQL and JavaScript or directly on the portal.

Microsoft have also provided a .NET SDK for DocumentDB that includes a LINQ provider. LINQ is used by many developers and architects because it offers a programming model that is consistent across different underlying databases or stores. The a LINQ provider translates LINQ query to a DocumentDB query, reducing the complexity for the programmer. Instead of executing raw SQL queries against DocumentDB, we can create an IQueryable object that queries the DocumentDB query provider. The provider translates the LINQ query into an SQL query and executes it. The result set that contains the JSON is then deserialized into a .NET object on the client.

For example, the following LINQ statement is translated to DocumentDB SQL:

query.Where (p => p.LastName...
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