If you include the
MySQL server with an application that is not licensed under the GPL or GPL-compatible license, you need a commercial license for the
MySQL server.
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If you develop and distribute a commercial application and as part of utilizing your application, the end-user must download a copy of
MySQL; for each derivative work, you (or, in some cases, your end-user) need a commercial license for the
MySQL server and/or
MySQL client libraries.
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If you include one or more of the
MySQL drivers in your non-GPL application (so that your application can run with
MySQL), you need a commercial license for the driver(s) in question. The
MySQL drivers currently include an ODBC driver, a JDBC driver and the C language library.