Here's an interesting commentary on it from the big O website: http://www.oracle.com/global/nl/education/specials/sp269.htm _____ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Niall Litchfield Sent: Thursday, November 06, 2008 5:45 AM To: David Ballester Cc: ORACLE-L Subject: Re: Temporal Databases I think so, I should have said that I'd googled the subject and got not a whole lot out of it, other than the blog below, Rob Squires research presentation from 2005 and a bunch of scientific articles. I already knew about slowly changing dimensions as well (in theory not practice) On Thu, Nov 6, 2008 at 10:20 AM, David Ballester <ballester.david@xxxxxxxxx> wrote: 2008/11/6 Niall Litchfield <niall.litchfield@xxxxxxxxx> Nope, not a Star Trek - Voyager reference though it sounds like one, but something that our CEO was asked about by a customer. I have to confess to never having heard the term. Other than FlashBack Query/Data Archive has anyone any experience/understanding of this term as it relates to Oracle? -- Niall Litchfield Oracle DBA http://www.orawin.info <http://www.orawin.info/> Hi Niall: May be is referening to this? ( googling by oracle temporal databases ) http://www.rittmanmead.com/2005/10/21/temporal-databases/ Regards D. -- Niall Litchfield Oracle DBA http://www.orawin.info