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Drupal 8 Module Development by Daniel Sipos

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Databases and MySQL

In the past, Drupal has supported two databases--MySQL and PostgreSQL. Drupal 7 and 8 have moved beyond this. Drupal now uses the powerful PHP Data Objects (PDO) library that is standard in PHP 5/7. This library is an abstraction layer that allows developers to support numerous databases, including MySQL, PostgreSQL, SQLite, and MariaDB.

The minimum database versions for Drupal 8 are as follows:

  • MySQL 5.5.3/MariaDB 5.5.20/Percona Server 5.5.8 or higher with PDO and an InnoDB-compatible primary storage engine
  • PostgreSQL 9.1.2 or higher with PDO
  • SQLite 3.7.11 or higher

Additionally, Drupal provides a powerful database API along with some SQL coding conventions that make it easy to interact with your database--both combined ...

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