Greg Low mentioned the new licensing model for Database Edition is his post on the topic a few days ago. What does this mean for you?
Here's my take: Now that Database Edition is included (free as in beer) with Developer Edition, application developers can take advantage of some of the awesome features built into Database Edition. What are some of those awesome features? I'm glad you asked.
- Unit and Database Tests - you can create database tests (and custom test conditions). Stored Procedure unit tests can be created by right-clicking the procedure and selecting "Create Unit Test".
- Data Generation - you can populate a test database with gibberish. This is a great test for your database as users will likely store lots of gibberish in your database once the application goes live. Did I type that out loud? Bad me. Seriously, using live data for development and test purposes is at best a bad idea; at worst against the law. Data Generation incorporates foreign key relationships into the matrix, so related data and relationships are also simulated. (This assumes the use of foreign keys in database design...).
There's more, but this should be enough to prompt you to head over to MSDN and download Database Edition.