# Re: Limits

From: Tegiri Nenashi <TegiriNenashi_at_gmail.com>

Date: Fri, 25 Jul 2008 17:17:14 -0700 (PDT)

Message-ID: <0b17229f-6b5f-4d56-a846-43a240e87498@o40g2000prn.googlegroups.com>

Date: Fri, 25 Jul 2008 17:17:14 -0700 (PDT)

Message-ID: <0b17229f-6b5f-4d56-a846-43a240e87498@o40g2000prn.googlegroups.com>

On Jul 25, 2:58 pm, JOG <j..._at_cs.nott.ac.uk> wrote:

*> For instance if we have relation:*

*> R := {w, x, y}*

*>*

*> where the tuples are:*

*> w := (a:1, b:1)*

*> x := (a:2, b:2)*

*> y := (a:3, b:2)*

*>*

*> then "ordering by a" yields a total ordering over R:*

*> {(w, x), (w,y), (x,y)}*

*>*

*> but "ordering by b" gives the partial ordering:*

*> {(w, x), (w,y)}*

OK. But who the recepient of the ORDER BY output? I assume it is some sort of SQL client. Can it understand partial order? Received on Fri Jul 25 2008 - 19:17:14 CDT