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MySQL is offered under two different editions: the open source MySQL Community Server [91] and the proprietary Enterprise Server. [92] MySQL Enterprise Server is differentiated by a series of proprietary extensions which install as server plugins, but otherwise shares the version numbering system and is built from the same code base.
MySQL Enterprise is a subscription-based service produced by Oracle Corporation and targeted toward the commercial market. Oracle's official support, training and certification focus on MySQL Enterprise. It is similar to Percona Server for MySQL from Percona and MariaDB Enterprise from MariaDB. [1] [2] [3] MySQL Enterprise includes the ...
Yes (PostgreSQL, MySQL, SQLite, MongoDB, Solr, others via plugins) Yes No Yes Yes (Markers, Twig, others via plugins) Yes (File, Redis, others via plugins) Yes No Yes Yes, (jQuery mobile, Bootstrap, others via plugins) Symfony: PHP >= 8.1 [95] Prototype, script.aculo.us, Unobtrusive Ajax with UJS and PJS plugins Yes Push Yes Propel, Doctrine Yes
MySQL: MySQL Group Replication, a plugin for virtual synchronous multi-master with conflict handling and distributed recovery was released with 5.7.17. Cluster Projects: MySQL Cluster supports conflict detection and resolution between multiple masters since version 6.3 for true multi-master capability for the MySQL Server.
MariaDB version numbers follow MySQL's numbering scheme up to version 5.5. Thus, MariaDB 5.5 offers all of the MySQL 5.5 features. There exists a gap in MySQL versions between 5.1 and 5.5, while MariaDB issued 5.2 and 5.3 point releases.
Note (3): "For other than InnoDB storage engines, MySQL Server parses and ignores the FOREIGN KEY and REFERENCES syntax in CREATE TABLE statements. The CHECK clause is parsed but ignored by all storage engines." [73] Note (4): Support for Unicode is new in version 10.0. Note (5): MySQL provides GUI interface through MySQL Workbench.
Varchar fields can be of any size up to a limit, which varies by databases: an Oracle 11g database has a limit of 4000 bytes, [1] a MySQL 5.7 database has a limit of 65,535 bytes (for the entire row) [2] and Microsoft SQL Server 2008 has a limit of 8000 bytes (unless varchar(max) is used, which has a maximum storage capacity of 2 gigabytes). [3]
Microsoft SQL Server (Structured Query Language) is a proprietary relational database management system developed by Microsoft.As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications—which may run either on the same computer or on another computer across a network (including the Internet).