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Path: utzoo!dciem!nrcaer!cognos!garyp
From: garyp@cognos.uucp (Gary Puckering)
Newsgroups: comp.databases
Subject: Re: Call Interfaces to RDBMSs
Message-ID: <1246@smokey.UUCP>
Date: Thu, 13-Aug-87 09:20:41 EDT
Article-I.D.: smokey.1246
Posted: Thu Aug 13 09:20:41 1987
Date-Received: Sun, 16-Aug-87 08:50:43 EDT
References: <168@bernina.UUCP> <3209@zen.berkeley.edu>
Reply-To: garyp@cognos.UUCP (Gary Puckering)
Organization: Cognos Inc., Ottawa, Canada
Lines: 26

In article <3209@zen.berkeley.edu> larry@xanadu.UUCP (Larry Rowe) writes:
>finally, as to whether any commercial database vendors publish the
>protocol between the application program and the dbms program (typically
>an IPC protocol), i don't know of anyone who is doing this yet, but

Both DEC and Data General publish the call-level interface to their
relational database systems, namely Rdb/VMS (and Rdb/ELN) and DG/SQL.

DEC's call-level interface is a DEC standard (i.e. rigidly controlled
within DEC) and is known as Digital Standard Relational Interface (or
DSRI).  There are several third-party software products which use DSRI
(including PowerHouse, Smartstar and VIDA).

DG's interface is known as Host Language Interface (HLI).

As for Unix products, Interbase publishes its interface (which is
upward compatible with DSRI) and I believe that Sybase and
Britton-Lee publish theirs too.

I'd be interested in knowing if other software vendors publish their
call-level interface (Oracle, Ingres, etc.).
-- 

Gary Puckering        3755 Riverside Dr.
Cognos Incorporated   Ottawa, Ontario    {allegra,decvax,ihnp4,linus,pyramid}
(613) 738-1440        CANADA  K1G 3N3    !utzoo!dciem!nrcaer!cognos!garyp