SA-1 (11/5/2013)
I have to create a slowly changing dimension with the caveat that any of the data attributes can change for any of the records (even the historical one's). There is a surrogate key from the source system that i could store locally but i was wondering if anyone has run in to this situation and used a different option / design.
I'm always amazed by such things. Historical table data is NOT supposed to change. By definition, it's supposed to be historical and, therefor, never change. Changing historical information may keep your company from getting ISO, SOX, and SEC certifications and, if something really bad happens, could even land everyone involved in jail.
I strongly recommend that the company get out of the nasty habit of changing historical information whereever it is kept.
--Jeff Moden
Change is inevitable... Change for the better is not.