Book Image

Mastering Julia - Second Edition

By : Malcolm Sherrington
Book Image

Mastering Julia - Second Edition

By: Malcolm Sherrington

Overview of this book

Julia is a well-constructed programming language which was designed for fast execution speed by using just-in-time LLVM compilation techniques, thus eliminating the classic problem of performing analysis in one language and translating it for performance in a second. This book is a primer on Julia’s approach to a wide variety of topics such as scientific computing, statistics, machine learning, simulation, graphics, and distributed computing. Starting off with a refresher on installing and running Julia on different platforms, you’ll quickly get to grips with the core concepts and delve into a discussion on how to use Julia with various code editors and interactive development environments (IDEs). As you progress, you’ll see how data works through simple statistics and analytics and discover Julia's speed, its real strength, which makes it particularly useful in highly intensive computing tasks. You’ll also and observe how Julia can cooperate with external processes to enhance graphics and data visualization. Finally, you will explore metaprogramming and learn how it adds great power to the language and establish networking and distributed computing with Julia. By the end of this book, you’ll be confident in using Julia as part of your existing skill set.
Table of Contents (14 chapters)

NoSQL databases

Compared to their relational cousins, NoSQL databases are more scalable and provide superior performance, and their data model(s) address several issues that the relational model was not designed for when dealing with large volumes of structured, semi-structured, and unstructured data.

They have become important with the rise in the use of “big data,” in dealing with data from the internet, online purchases and other credit card transactions, and so on.

The different types of NoSQL databases can roughly be classified under the following headings, although no taxonomy is perfect:

  • Key-value (KV): These are among the simplest NoSQL databases. Every single item in the database is stored as an attribute name (or “key”), along with its value.
  • Document: These pair each key with a complex data structure known as a the document, which may contain many different KV pairs, key-array pairs, or even nested documents.
  • Columnar...