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Getting Started with RethinkDB

You're reading from   Getting Started with RethinkDB Absorb the knowledge required to utilize, manage, and deploy

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Product type Paperback
Published in Mar 2016
Publisher Packt
ISBN-13 9781785887604
Length 176 pages
Edition 1st Edition
Languages
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Author (1):
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Gianluca Tiepolo Gianluca Tiepolo
Author Profile Icon Gianluca Tiepolo
Gianluca Tiepolo
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Table of Contents (9) Chapters Close

Preface 1. Introducing RethinkDB FREE CHAPTER 2. The ReQL Query Language 3. Clustering, Sharding, and Replication 4. Performance Tuning and Advanced Queries 5. Programming RethinkDB in Node.js 6. RethinkDB Administration and Deployment 7. Developing Real-Time Web Applications Index

Introducing ReQL


A database is only as good as its query language.

For a developer, the query language is basically an interface to the database; however, it's disappointing to say that most of the existing query languages are easy to use or powerful but not both. Thankfully, with ReQL, you get the best of both worlds as the query language is intuitive but very powerful at the same time.

An explicit query language

Instead of writing complex, SQL-like queries, ReQL lets you write practical, simple queries. One of its best features is that ReQL can be considered an explicit query language. The way in which you approach RethinkDB is not only simple and intuitive, but it also gives you a good idea of how the query is being executed within the database, giving you the right balance of abstraction.

Let's look at an example query:

r.table('users').filter({ name: 'Alex' }).orderBy(r.desc('age'))

In this simple query, we get all the users with the name Alex ordered in descending order by age. If we were...

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