Автор выбрал организацию Open Sourcing Mental Illness для получения пожертвований в рамках программы Write for DOnations. Транзакция MySQL представляет собой группу логически связанных команд SQL,…
In this article, we will go over the specific features of a high-availability application setup and discuss its components at a high level. At the end of each section, we’ll link out to additional resources on the topic to support you as you consider methodologies and best practices.
The relational model is an abstract model used to organize data within a database. In order to control access to a database, write data, run queries, or perform any other tasks related to database management, a database management system must have some kind of underlying model that defines how…
À medida que sua aplicação ou site cresce, pode chegar um momento em que você superou a configuração atual do seu servidor. Se você estiver hospedando o seu servidor web e o back-end do banco de dados na mesma máquina, pode ser uma boa ideia separar essas duas funções para que…
Если вы активно занимаетесь разработкой приложений, использование Docker может упростить ваш рабочий процесс и процесс развертывания вашего приложения в продакшен. Работа с контейнерами в процессе разработки предоставляет следующие преимущества: Среды…
Database monitoring is the continuous process of systematically tracking various metrics that show how the database is performing. In this tutorial, you’ll import database metrics, generated by the Redis INFO command, into Elasticsearch via Logstash. The imported data can later be analyzed and visualized in Kibana. By the end of the tutorial, you’ll have an automated system pulling in Redis statistics for later analysis.
In this guide, you will configure an active-active MariaDB Galera cluster. For demonstration purposes, you will configure and test three CentOS 7 Droplets that will act as nodes in the cluster. MariaDB is an open source relational database system that is fully compatible with the popular MySQL RDBMS system. Galera is a database clustering solution that enables you to set up multi-master clusters using synchronous replication.
Eine frühere Version dieses Tutorials wurde von Melissa Anderson verfasst. MongoDB, auch als Mongo bekannt, ist eine Open-Source-Dokumentendatenbank, die für gewöhnlich in modernen…
Eloquent is an object relational mapper (ORM) included by default within Laravel applications. It facilitates the task of interacting with database tables, providing an object-oriented approach to inserting, updating, and deleting database records, while also providing a streamlined interface for executing SQL queries. In this guide, which is part of a larger Laravel series, you’ll see how to create an Eloquent model for a links landing application.
In the second part of our Practical Introduction to Laravel Eloquent Series, you’ll learn how to insert records in the database using Eloquent models. One of the biggest advantages of using an ORM system is the ability to manipulate rows in a database table as objects within your codebase. With Eloquent, as with other ORMs, the object itself provides methods that can be used to persist it to the database, saving you the work of writing SQL statements.
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