Re: Sets and Lists, again

From: dawn <dawnwolthuis_at_gmail.com>
Date: 22 May 2006 17:49:21 -0700
Message-ID: <1148345361.578279.189170@i39g2000cwa.googlegroups.com>

Gene Wirchenko wrote:
> On 22 May 2006 16:42:22 -0700, "dawn" <dawnwolthuis_at_gmail.com> wrote:
>
> [snip]
>
> >I'm working at the logical level where an index holds the ordinal
> >position. This position can be selected just as any attribute (derived
> >or otherwise). There is no renumbering required.
>
> Indexes are physical, not logical.

No. I am using the term as an index of an array. Array[n] where n is the index. If there is a list in a DBMS named emailAddresses, then the 3rd element of that array is (logically) emailAddresses[2] (or [3], depending on the implementation of Arrays) and '2' (or '3') is the value of the index for that element.

--dawn Received on Mon May 22 2006 - 19:49:21 CDT