Databases

NoSQL databases are an alternative to the traditional SQL databases. They are more flexible, scalable and functional for working with big data. There are different types of NoSQL databases. The most widely used types include: key-value databases, document databases, wide-column databases, and graph databases.

This in-depth tutorial explains how to install Cassandra on Windows 10. The abundance of images in this tutorial makes installing Cassandra on Windows very easy. Besides learning how to install Cassandra on Windows the guide also shows you how to install Java 8 and Python 2.7.

Need to install the ELK stack to manage server log files on your CentOS 8? Follow this step-by-step guide and set up each layer of the stack - Elasticsearch, Logstash, and Kibana.

Create new MongoDB databases and add data collections by using the commands presented in this article. The use, insert and find commands are crucial tools that allow you to perform basic administrative tasks on your database servers.

Learn about the difference between Cassandra and MongoDB. These NoSQL databases have some similarities, but many more differences. Examine these factors and decide which database is better for you.

Elasticsearch is an open-source engine that enhances searching, storing and analyzing capabilities of your computing environment. Follow the steps in this tutorial to install Elasticsearch on your Ubuntu machine.

The article provides many images that guide you through each individual step of a MySQL installation on Windows. The elaborate setup is made easy with clear instructions and concise descriptions of each particular option.

This Spark tutorial shows how to get started with Spark. The guide covers the procedure for installing Java, Git, Scala, how to verify the installed dependencies, as well as the detailed procedure for installing Spark. The article contains the basic start and stop commands for master and slave servers.

This article explores several highly efficient methods that allow you to export a MySQL table as a CSV file. As a CSV file, the data from your tables becomes much more accessible, both to humans and a host of other applications.

This article offers two slick methods to rename a column in a MySQL table. Use ALTER TABLE command combined with the RENAME COLUMN clause for a swift resolution. The CHANGE clause offers more options and allows you to micromanage the renaming process.