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  • Book Overview & Buying Learning Azure DocumentDB
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Learning Azure DocumentDB

Learning Azure DocumentDB

By : Riccardo Becker
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Learning Azure DocumentDB

Learning Azure DocumentDB

By: Riccardo Becker
Buy this Book

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.
Table of Contents (10 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Getting Started with DocumentDB
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1. Getting Started with DocumentDB
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What is DocumentDB?
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Exploring the data model
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DocumentDB versus other databases
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Understanding the price model
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Building your first application
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Summary
2
2. Setting up and Managing Your Database
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2. Setting up and Managing Your Database
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Managing your keys
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Using resource tokens
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Managing alerts
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Summary
3
3. Basic Querying
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3. Basic Querying
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Creating resources
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Reading resources
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Updating documents
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Deleting documents
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Summary
4
4. Advanced Querying
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4. Advanced Querying
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Using the SELECT statement
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Using the FROM clause
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Using the WHERE clause
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Using built-in functions
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Building stored procedures
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Building triggers
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Building user-defined functions
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Using LINQ to DocumentDB
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Summary
5
5. Using REST to Access Your Database
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5. Using REST to Access Your Database
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Understanding the basics of REST
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Querying DocumentDB resources
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Getting all databases
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Adding a document
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Summary
6
6. Using Node.js to Access Your Database
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6. Using Node.js to Access Your Database
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Introducing Node.js
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Utilizing DocumentDB from Node.js
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Summary
7
7. Advanced Techniques
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7. Advanced Techniques
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Introducing indexes
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Partitioning data
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Managing performance
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Using transactions
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Setting consistency levels
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Summary
8
8. Putting Your Database at the Heart of Azure Solutions
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8. Putting Your Database at the Heart of Azure Solutions
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Introducing an Internet of Things scenario
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Increasing search capabilities
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Enhancing security
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Migrating data
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Summary
9
Index
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Index

Setting consistency levels

DocumentDB offers different levels of consistency. Again, this is a matter of balancing between performance, consistency, and latency. DocumentDB offers four levels of consistency, each with its own characteristics.

Consistency levels can only be set on user defined resources such as documents and triggers. By default, all system resources such as databases and collections are strongly consistency enabled. The following types of consistency levels are available:

  • Strong

  • Bounded staleness

  • Session

  • Eventual

Setting the consistency level can be accomplished using the designated SDKs or the Azure portal, as shown in the following screenshot:

Using strong consistency

Strong consistency means that a write to a collection, database, or some other user defined resource is visible only after it is committed by the majority of the replicas. This means that a client cannot face an uncommitted write and DocumentDB always guarantees to return the latest write that was successful.

This...

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Learning Azure DocumentDB
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