If your application is commercial, then you need to pay for MySQL if you distribute it with your app.

I your customer already have MySQL but your app need the ODBC/OLE DB driver, then, again , you need to pay for the driver


Get Firebird SQL, it has another licence (IPL - Interbase Public Licence - can be freely distributed with commercial apps) , and is more advanced than MySQL.

>Hi,
>
>I am confused on the following issues on Open source software
>
>* If I get Mysql for use with my own written application.
>When my customer purchased my software and want to use MySql
>in their company, do my customer had to pay for the use of MySql ?
>
>My friend told me that my customer don't had to pay for it as
>I thought my customer had to pay for it as they are using for
>their company use for profit. Please correct me on the above
>issue.