Yes, you read the title correctly — there are three editions of MySQL available, according to http://www.mysql.com/products/enterprise/server.html. Well, that page names two, and then of course there is the community edition….

From the manual page:

MySQL Enterprise Server is available in the following editions:

* MySQL Enterprise Server – Pro is the world’s most popular open source database that enables you to rapidly deliver high performance and scalable Online Transaction Processing (OLTP) applications.
* MySQL Enterprise Server – Advanced is the most comprehensive edition of MySQL. It provides all the benefits of MySQL Enterprise Server Pro and adds horizontal table and index partitioning for improving the performance and management of VLDBs (Very Large Databases).

How is “horizontal table …

JasperSoft’s business development director Andrew Lampitt has kicked off his new blog with an interesting post related to business models used by open source-related vendors.

In it he attempts to define the approach utilized by the likes of JasperSoft and SugarCRM, which offer open source products with core functionality, as well as commercial extensions. The approach is a twist on the dual licensing approach made famous by MySQL* where the vendor, as copyright holder, makes the code available under both the GNU GPL and a commercial license for customers that would rather avoid the GPL.

The approach taken by JasperSoft et al is not to segment by user base but by features. As Andrew explains, “the commercial license is a super-set of the open source product, i.e., it offers premium product features that you will not see in …