Book Image

MongoDB 4 Quick Start Guide

By : Doug Bierer
Book Image

MongoDB 4 Quick Start Guide

By: Doug Bierer

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)

What is NoSQL?

Before you can begin to use MongoDB properly, it's important to understand its architectural underpinnings. Key to this understanding is what is often referred to as NoSQL. As the rubric implies, a NoSQL database does not use SQL language. More importantly, this means that a NoSQL database is free from the legacy, two-dimensional restrictions that handcuff the traditional RDBMS.

There is no formal definition of NoSQL, but there are certain common characteristics. First of all, a NoSQL database does not adhere to the relational model. This is evident in that MongoDB has no fixed schema, no tables, columns, or rows. A second consideration is that NoSQL databases are driven by the needs of big data. Accordingly, NoSQL databases tend to be scalable as well as distributed. This aspect is visible in the MongoDB feature called sharding, where shards of the database...