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Can someone explain to me the following:
We are running a website with a web service using MySQL and we are getting paid for it monthly. Can we use MySQL community edition for this? Can we use MySQL community edition for development of this kind of software? We are not distributing our source code anywhere.
Another example: Can you write a website using CMS using MySQL for a customer? Can you use the free edition?
I think it should be fine, as it is under the GPL license.
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I'm planning on developing a web application that will run on a website/server that I will rent for it. The app will require the storage of user information and I heard that MySQL was a good choice for this. I will not be selling the application, it will solely rest on my website for others to use.
If I use MySQL, seeing as it is under the GNU General Public License, will my application have to be open-source, or because I am not selling the app, it does not count as commercial use and I can use MySQL without any penalties?
You are only required to have a commercial license for MySQL if you want to modify MySQL and redistribute the changed software for profit, or if you want to embed MySQL in a non-free program, which is not the same as making a connection to MySQL.
The GPL license is talking about modifications to MySQL itself, not general usage. You should be fine :)
source: http://www.xaprb.com/blog/2009/02/17/when-are-you-required-to-have-a-commercial-mysql-license/
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I am developing client server application using ASP.NET together with MySQL. This solution will be hosted using VPS and of course I will install MySQL in VPS.
This web based application is a customized solution based on my customer requirements and I have no idea whether I can use MySQL community edition or I have to pay?
Thanks in advanced.
The question (and the answer) does not apply to MySQL only, but to all GPL-licenced software.
There is nothing to pay to use a piece of GPL software. MySQL Community edition is licensed under the GPL-v2 licence.
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I want to create a website in JSP and the database will be MySQL. I will host the website on the internet. Is it required to obtain any licence to develop them on my machine?
As http://mysql.com/products/ states, MySQL database has 4 editions.
For development it is enough to use community edition, which is distributed under GPL license, which is open-source license.
You don't need anything.
No it'f free if you don't intend to sell the product including the mysql database software. Found here.
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Can I use MySQL community edition in a commercial product for free?
The product is not open source.
Do I need to acquire some kind of license or not, in order to use MySQL?
Thanks
MySQL is licensed under the GPL with the linking exception. That basically means that you can link your own program against MySQL libs without licensing it under the GPL as well.
But you have to obey all other terms of the GPL, such as providing the license info for MySQL, providing the source code of it (and more, see GPL license text).
Depending on your product this can either be acceptable or you want to buy a license to get rid of the GPL requirements.
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I would like to know if I can use MySQL Connector (libmysql.dll) with comercial Lazarus project. As far as I know, it's under GNU GPL.
Thanks for any answers.
Not if you want to sell your end product, unless you want to licence it under GPL as well.
MySQL Connector also provides commercial licenses for that purpose.
The answer is right on the page you're linking to:
MySQL open source software is provided under the GPL License.
Check out http://www.mysql.com/about/legal/licensing/oem/ which should tell you which is the license you need.