The focus of this chapter will be on a feature that's unique to MongoDB called the Aggregation Framework (https://www.mongodb.com/presentations/aggregation-framework-0?jmp=docs&_ga=2.166048830.1278448947.1531711178-137143613.1528093145), which is vital when forming complex queries. This feature allows database developers, or DBAs, to return subsets of data that are grouped, sorted, and filtered. We will start our discussion by forming a simple aggregation using single-purpose methods (https://docs.mongodb.com/manual/aggregation/#single-purpose-aggregation-operations). After that, we will get into the more complex topics of forming an aggregation pipeline (https://docs.mongodb.com/manual/aggregation/#aggregation-pipeline) and making use of the map-reduce (https://docs.mongodb.com/manual/aggregation/#map-reduce) function. We will...
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MongoDB 4 Quick Start Guide
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MongoDB 4 Quick Start Guide
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Overview of this book
MongoDB has grown to become the de facto NoSQL database with millions of users, from small start-ups to Fortune 500 companies. It can solve problems that are considered difficult, if not impossible, for aging RDBMS technologies. Written for version 4 of MongoDB, this book is the easiest way to get started with MongoDB.
You will start by getting a MongoDB installation up and running in a safe and secure manner. You will learn how to perform mission-critical create, read, update, and delete operations, and set up database security. You will also learn about advanced features of MongoDB such as the aggregation pipeline, replication, and sharding.
You will learn how to build a simple web application that uses MongoDB to respond to AJAX queries, and see how to make use of the MongoDB programming language driver for PHP.
The examples incorporate new features available in MongoDB version 4 where appropriate.
Table of Contents (11 chapters)
Preface
Free Chapter
Introducing MongoDB
Understanding MongoDB Data Structures
Using the MongoDB Shell
Developing with Program Language Drivers
Building Complex Queries Using Aggregation
Maintaining MongoDB Performance
Securing MongoDB
Getting from a Web Form to MongoDB
Using Docker
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