Having done unit testing for 14 years using standard frameworks and about a further 5 years using handcrafted frameworks, I find it rather restricted, limited and backward that I do not apply the same techniques when coding for RDBMS'. This is in part due to the lack of tools (there are some out there as the article highlights), lack of support from the DBA teams (there will be exceptions, however, this is my experience) and/or lack of authority to add any SDLC tools, be they homespun or third party.