Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!samsung!emory!mephisto!mcnc!unccvax!cs00chs
From: cs00chs@unccvax.UUCP (charles spell)
Newsgroups: comp.databases
Subject: CDATA - by Al Stevens
Keywords: multi-user conversion to informix3.3
Message-ID: <1852@unccvax.UUCP>
Date: 1 Mar 90 01:24:36 GMT
Organization: Univ. of NC at Charlotte, Charlotte, NC
Lines: 14


Almost a year ago I stated that I would begin on making Cdata by AL Stevens
a multi-user RDBMS system. I have done this and in the process I made the
functions very informix-like. I am currently working on the standard dbbuild,
dbstatus, and enter2 utilities. What I have done is kept the basic low-level
algorithm, but have totally changed the C-interface to be very compatible
with Informix 3.3.  A simple -DSINGLE_USER will create an informix library
for any PC compatible.


In the future, I plan on changing it to a client-server model for efficiency
reasons (currently twice as fast as informix and uses SysV IPC semaphores as
a concurrency control mechanism). I will eventually try to make it compatible
with SQL.