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This article mainly explains "mysql is open source", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "mysql is not open source" bar!

Mysql was originally open source, that is, an open source relational database management system, but MySQL's license is now divided into free community version and paid standard version, enterprise version and so on.

This article operating environment: Windows7 system, Mysql5.7.14 version, Dell G3 computer.

Is mysql open source?

Mysql was originally open source.

MySQL (officially pronounced as / ma relational database management system / "MyS-Qmurl", but is also often read as / ma relational database management system / "My Sequel") was originally an open source relational database management system, originally developed by Sweden's MySQL AB, which was acquired by Shenyang Microsystems (Sun Microsystems) in 2008. In 2009, Oracle acquired Shenyang Microsystems, and MySQL became a product of Oracle.

MySQL has become the most popular open source database in the past because of its high performance, low cost and good reliability, so it is widely used in small and medium-sized websites on Internet. As MySQL continues to mature, it is also gradually used in more large-scale websites and applications, such as Wikipedia, Google and Facebook. The "M" in the very popular open source software combination LAMP refers to MySQL.

But after it was acquired by Oracle, Oracle sharply increased the price of MySQL's commercial version, and Oracle no longer supported the development of OpenSolaris, another free software project. As a result, the free software community was worried about whether Oracle would continue to support the MySQL community version (the only free version of MySQL). MySQL founder Michael Vidnius set up a branch plan MariaDB based on MySQL. However, some open source software that used to use MySQL gradually turned to MariaDB or other databases. Wikipedia, for example, officially announced in 2013 that it would migrate from MySQL to MariaDB databases.

MySQL's license is now divided into free community editions and paid standard editions, enterprise editions, etc. Generally speaking, if you release MySQL in a non-open source project, or need technical support for MySQL from Oracle, or use some enterprise version tools or plug-ins of MySQL, or modify the MySQL source code as closed-source software, you need to buy a commercial version. If you just install and use MySQL, or even modify and use MySQL, whether for a fee or not, or if the software does not include MySQL, users of the software install MySQL; themselves, or MySQL is included in open source software products that use the GPL protocol, these situations may use the community version of MySQL.

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