Re: Poll: What percentage advantage are RDBMS vendors taking of the RM?
From: Jon Heggland <heggland_at_idi.ntnu.no>
Date: Tue, 28 Jun 2005 10:41:32 +0200
Message-ID: <MPG.1d2b2ba7b66653ab9896b6_at_news.ntnu.no>
Date: Tue, 28 Jun 2005 10:41:32 +0200
Message-ID: <MPG.1d2b2ba7b66653ab9896b6_at_news.ntnu.no>
In article <Gq6ve.3232$oJ.1835_at_news-server.bigpond.net.au>,
hobbit_at_southern_seaweed.com.op says...
> What advances in the theory of the RM have there been since
> Codd's first paper, from the theory side? Are they numerous
> or singular?
Do you mean stuff like normalisation theory, development of better relational operators, TABLE_DEE and TABLE_DUM, and the generalisation of relational operators to handle interval types and thus temporal data?
-- JonReceived on Tue Jun 28 2005 - 10:41:32 CEST