When I evaluated what to base my framework on, I did not find much that was available and looked interesting, except jOOQ - which at the time started steering away from being pure OS (so was a no go for us).
The jOOQ webpage licensing FAQ has the following to say on the topic: Can I use "jOOQ Open Source Edition" also in commercial software? A: Yes, as any Apache-licensed software, jOOQ can be used in commercial software. Q: Can I use "jOOQ Open Source Edition" also with commercial databases? A: It is unlikely that you will get the "jOOQ Open Source Edition" to work properly with a commercial database that is not supported by the "jOOQ Open Source Edition". We strongly suggest purchasing commercial licenses. Cheers, mg
