How many patterns does a mysql data source have?

Multiple. MySQL is a relational database management system, which is developed by Swedish MySQLAB company and belongs to Oracle products. MySQL is one of the most popular relational database management systems, and MySQL is one of the best RDBMS applications in WEB applications. Mysql, a database with multiple modes, namely XML schema, XSD (XMLSchema Definition) is a recommendation standard issued by W3C in May 20001year, which points out how to formally describe the elements of XML documents.