سلام.
من چون تو زبان لنگ می زنم برای اطمینان اگر میشه یه نگاهی به این متن های بندازید:
The MySQL software is Dual Licensed. Users can choose to use the MySQL software as an Open
Source product under the terms of the GNU General Public License (http://www.fsf.org/licenses/) or
can purchase a standard commercial license from MySQL AB. See ht-
tp://www.mysql.com/company/legal/licensing/ for more information on our licensing policies.
و
Open Source means that it is possible for anyone to use and modify the software. Anybody can
download the MySQL software from the Internet and use it without paying anything. If you
wish, you may study the source code and change it to suit your needs. The MySQL software
uses the GPL (GNU General Public License), http://www.fsf.org/licenses/, to define what you
may and may not do with the software in different situations. If you feel uncomfortable with the
GPL or need to embed MySQL code into a commercial application, you can buy a commercially
licensed version from us. See the MySQL Licensing Overview for more information (ht-
tp://www.mysql.com/company/legal/licensing/).
یعنی برای نوشتن برنامه های تجاری باید mysql رو خریداری کنیم؟
البته این متون مربوط میشه به mysql reference manual 5.0 که سال 2006 نوشته شده.
کسی نمی دونه sun بعد از خریداری اون مجوزش رو تغییر داده یا خیر؟