A database is a collection of information that is organized so that it can be easily accessed, managed and updated. Computer databases typically contain aggregations of data records or files, containing information about sales transactions or interactions with specific customers
SQL (Structured Query Language) is a standardized programming language that's used to manage relational databases and perform various operations on the data in them. Also known as SQL databases, relational systems comprise a set of tables containing data in rows and columns
MySQL is a freely available open source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL). SQL is the most popular language for adding, accessing and managing content in a database. It is most noted for its quick processing, proven reliability, ease and flexibility of use.
One of the reasons MySQL is the world's most popular open source database is that it provides comprehensive support for every application development need. MySQL also provides connectors and drivers (ODBC, JDBC, etc.) that allow all forms of applications to make use of MySQL as a preferred data management server.