Databases

Cassandra Data Types: Built-in, Collection, & User-defined

June 10, 2020

Apache Cassandra, a NoSQL database, supports a variety of data types, including built-in, collection, and user-defined data types. This article explains how these differ from each other and help you decide when to use one over the other.

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NoSQL Database Types


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.

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How to Install Cassandra on Windows 10

June 8, 2020

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.

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How to Install Elasticsearch, Logstash, and Kibana (ELK Stack) on CentOS 8

May 6, 2020

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.

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How to Create Database & Collection in MongoDB

April 29, 2020

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.

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Cassandra vs MongoDB - What are the Differences?

April 27, 2020

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.

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How to Install Elasticsearch on Ubuntu 18.04

April 23, 2020

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.

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How to Install and Configure MySQL on a Windows Server


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.

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How to Install Spark on Ubuntu

April 13, 2020

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.

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How to Export a Table from MySQL to CSV

April 3, 2020

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.

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