Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> comp.databases.theory -> Re: Transitive Closure

Re: Transitive Closure

From: Laconic2 <laconic2_at_comcast.net>
Date: Tue, 18 May 2004 13:49:51 -0400
Message-ID: <-Jidnf4ON5Pk0Tfd4p2dnA@comcast.com> 





By the way,  the "set of attributes" that is one of the operands of a
projection reminds me strongly of the "space"
that defines the domain of a relational variable.



So much so,  that I think of "projection"  as simply mapping the operand
relation from its current space into a different space. This fits nicely
with that "projection" means in projective geometry.
Received on Tue May 18 2004 - 12:49:51 CDT












Original text of this message













  HOME |
  ASK QUESTION |
  ADD INFO |
  SEARCH |
  E-MAIL US