Xref: utzoo comp.sys.mac:17963 comp.databases:1145 Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!agate!jif!hughes From: hughes@jif.berkeley.edu (eric hughes) Newsgroups: comp.sys.mac,comp.databases Subject: Re: SQL and Macintosh Summary: Raima db_Query Keywords: DBMS SQL Message-ID: <11753@agate.BERKELEY.EDU> Date: 7 Jul 88 14:44:23 GMT References: <545@utacs.UTA.FI> <3626@bnrmtv.UUCP> Sender: usenet@agate.BERKELEY.EDU Reply-To: hughes@math.berkeley.edu (eric hughes) Organization: Math Dept., UC Berkeley Lines: 27 In article <3626@bnrmtv.UUCP> geller@bnrmtv.UUCP (Phil Geller) writes: > >Products are coming, but there is a very limited >selection at the moment. > > o RAIMA Corp. (Bellevue, WA. USA) makes a DBMS called > db_VISTA. It has a front-end called db_QUERY which > is a SQL interface. The limitations are that it is > a network, not relational, database model; the SQL > language is for retrieval only - update, insert, and > retrieval are not allowed (but are coming in a year (maybe); > and it is a c language interface intended for c developers > who want to construct their own application and user interface. I have used db_Query, and it has (to my mind) a lot of limitations. First, RAIMA advertises the product as "SQL BASED QUERY". It is not a subset of SQL per se, although the syntax is reminiscent of it. It adds a statement "relation" which specifies the explicit order in which the buffers should be filled. Fields are then "select"ed from that relation. Unless the new release changes it, joins are only allowed on set links and indexed fields. (I upgraded to the new version of db_Vista, but not to db_Query) To my knowledge, no query optimization is done. Make of all these scattered thoughts what you will. Eric Hughes hughes@math.berkeley.edu