Oracle Corporation makes versions 2.0 and higher of Berkeley DB available under a dual license.[15] The sleepycat license license is a 2-clause BSD license with an additional copyleft clause similar to the GNU GPL version 2's Section 3, requiring source code of an application using Berkeley DB to be made available for a nominal fee.
As of Berkeley DB release 6.0, the Oracle Corporation has relicensed Berkeley DB under the GNU AGPL v3.[16]
As of July 2011, Oracle's list price for non-copyleft Berkeley DB licenses varies between 900 and 13,800 USD per processor.
That's the AGPL, mind you. One of the most ridiculous and restrictive "open-source" licenses created; it's not really intended to be applied to libraries, and is incompatible with every other license in existence, including even the standard GPL. Applying it to a library makes the open-source version effectively unusable.
From Wikipedia:
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Oracle Corporation makes versions 2.0 and higher of Berkeley DB available under a dual license.[15] The sleepycat license license is a 2-clause BSD license with an additional copyleft clause similar to the GNU GPL version 2's Section 3, requiring source code of an application using Berkeley DB to be made available for a nominal fee.
As of Berkeley DB release 6.0, the Oracle Corporation has relicensed Berkeley DB under the GNU AGPL v3.[16]
As of July 2011, Oracle's list price for non-copyleft Berkeley DB licenses varies between 900 and 13,800 USD per processor.
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