An open-source system of relational databases and one of the SQL dialects, currently developed by Oracle. It largely complies with the current ANSI / ISO SQL standard, and additionally introduces its extensions, new language elements, data storage engines and types. It enables, among others, the implementation of native cloud applications, data warehousing, e-commerce applications and logging applications, but the most common use is the creation of online databases.
It is most often chosen by developers of solutions made in PHP. MySQL is fully supported by AWS in the RDS service also in the form of the proprietary AuroraDB engine that is compatible with the MySQL dialect.