Path: utzoo!attcan!utgpu!watmath!att!mtuxo!mtgzz!drutx!druhi!kam
From: kam@druhi.ATT.COM (Karen A. Morrissey)
Newsgroups: comp.lang.prolog
Subject: Re: set predicates for db-access
Summary: minimal mismatch
Keywords: prolog, database, set predicates
Message-ID: <4513@druhi.ATT.COM>
Date: 16 Aug 89 20:00:45 GMT
References: <303@unizh.UUCP>
Organization: AT&T, Denver, CO
Lines: 17


About 3-4 years ago, we bolted together C-Prolog 1.5 and 2 different
proprietary relational database managers.

Programmers could define predicates that mapped to relations as if a
relation was a collection of grounded unit clauses.  We even handled
transaction processing (commit and abort).

The interface was transparent except for the unsurprising temporal
problems with additions and deletions. In practice it worked just
fine.


Karen Morrissey
AT&T Bell Labs
303-538-4587
att!druhi!kam