Path: utzoo!attcan!uunet!husc6!bbn!rochester!pt.cs.cmu.edu!VOLGA.EDRC.CMU.EDU!mt1p
From: mt1p@VOLGA.EDRC.CMU.EDU (Michael Terk)
Newsgroups: comp.databases
Subject: Informix help
Message-ID: <1811@pt.cs.cmu.edu>
Date: 31 May 88 21:44:21 GMT
Sender: netnews@pt.cs.cmu.edu
Organization: Carnegie-Mellon University, CS/RI
Lines: 15

I am very new to using Informix. Actually all that I have done is to create
a database and some tables and now I want to perform some queries. The
problem I came up against, is that the reference guide to RSQL or ESQL does
not say that I can use C functions such as sqrt,sin,cos in the WHERE clause
of the SELECT statement. The application I am working on requires that I
find an entry in a table that satisfies something like 
     (bf * (sqrt (tf / d)) >= 1200 and
     (d ** tw) / 12000 >= 200
with the objective function of MIN(d). I need to find out how easialy are
these things done in Informix, so I can either continue working with it, or
switch to another DBMS. Any help will be greatly appreciated.

Thanks,

Mike Terk