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