In this tutorial we will learn how to set up PowerDNS in a master/slave configuration with automatic replication from the master DNS server to the slave. This tutorial is the second tutorial in our PowerDNS series for Ubuntu.
O autor escolheu o Free and Open Source Fund para receber uma doação como parte do programa Write for DOnations. O monitoramento de banco de dados é o processo contínuo de rastrear…
In a previous part of this series, you learned how to obtain database records using the all() method from within an Eloquent model, sorting the resulting collection with the sortDesc() method. In this guide, you’ll learn how to use the orderBy() method to sort results in the database query itself, which offers more flexibility and performance to order query results at the database level.
MariaDB est un système de gestion de base de données open-source, couramment utilisé comme alternative à la partie MySQL du populaire Pile…
Автор выбрал Computer History Museum для получения пожертвования в рамках программы Write for DOnations. Многие приложения, в том числе системы мониторинга и сбора данных, собирают данные для дальнейшего анализа. В…
ClickHouse is an open-source, column-oriented analytics database created by [Yandex](https://yandex.com) for OLAP and big data use cases. In this tutorial, you’ll install the ClickHouse database server and client on your machine. You’ll use the DBMS for typical tasks and optionally enable remote access from another server so that you’ll be able to connect to the database from another machine.
Una versión anterior de este tutorial fue escrita por Brennan Bearnes. La pila LAMP hace referencia a un grupo de diferentes programas de código abierto que típicamente son instalados en conjunto, con el objetivo de…
When retrieving data from a database, you may need to refer to more than one table at a time. In Structured Query Language (SQL), you can use the `UNION` operation, which takes the results of two queries with matching columns and merges them into one. In this guide, you will use `UNION` operations to retrieve data from more than one table simultaneously and combine the results. You will also combine the `UNION` operator with filtering to order the results.
MySQL is an open-source database management system, commonly installed as part of the popular LAMP (Linux, Apache, MySQL, PHP/Python/Perl) stack. It uses a relational database and SQL (Structured Query Language) to manage its data. This tutorial will explain how to install MySQL version 5.7 on an Ubuntu 18.04 server.
In this guide, you will configure an active-active MySQL Galera cluster with three Ubuntu 18.04 servers. Clustering adds high availability to your MySQL database by distributing changes to different servers. In the event that one of the instances fails, others are quickly available to continue serving. Galera is a database clustering solution that enables you to set up multi-master clusters using synchronous replication.
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