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- Path: sparky!uunet!paladin.american.edu!auvm!ksadegh
- Organization: The American University - University Computing Center
- Date: Thu, 19 Nov 1992 14:05:31 EST
- From: Kayvon Z. Sadeghi <KSADEGH@auvm.american.edu>
- Message-ID: <92324.140531KSADEGH@auvm.american.edu>
- Newsgroups: comp.client-server
- Subject: Re: SQL and Client-server architecture
- References: <92316.105420KSADEGH@auvm.american.edu>
- <1992Nov17.160748.5948@cbnewsl.cb.att.com> <paul.722141311@suite.sw.oz.au>
- Lines: 62
-
- In article <paul.722141311@suite.sw.oz.au>, paul@suite.sw.oz.au (Paul Antoine)
- says:
- >
- >In <1992Nov17.160748.5948@cbnewsl.cb.att.com> sdo@cbnewsl.cb.att.com
- >(scott.orshan) writes:
- >
- >>In article <92316.105420KSADEGH@auvm.american.edu> Kayvon Z. Sadeghi
- ><KSADEGH@auvm.american.edu> writes:
- >>>I was wondering why all the client/server systems use SQL as their
- >manipulation
- >>>language. I don't recall seeing any client/server that works on OO or
- >>>hierarchy, for example. Is this because its easier to implement s
- >client/server
- >>>in SQL or is there any especial reason.
- >
- >>I'm not sure why you say that all client/server systems use SQL.
- >>Perhaps all client/server SQL database systems use SQL (a tautology),
- >>but some databases don't, and non-database client/server packages
- >>probably have no need to use SQL.
- >
- >>For example, plain RPCs and TP Monitor C/S calls pass arbitrary information
- >>between clients and servers. Most client/server access is probably
- >>just remote file access, and that has nothing to do with SQL.
- >
- >And I'd even dispute that most C/S access is not remote file access (as in
- >our C/S system that talks to 3270-based applications). The TP monitor is
- >used to route the data, and is aware of the type and number of servers and
- >where they're running, but there's no restriction on the data (i.e. it
- >needn't be SQL!).
- >
- >The confusion probably arises because most C/S systems are used to more
- >efficiently access corporate data - but this needn't be in the form of
- >direct database access. A lot of it can also be done through existing
- >applications (as in our case). It just goes to show that getting consensus
- >on the eternal question 'what is C/S?' is well nigh impossible,
- >
- >Regards,
- >Paul (a Tuxedo fan)
- >
- >------------------------------------------------------------------------------
- >Paul Antoine, Softway Pty Ltd Net: paul@suite.sw.oz.au
- >PO Box 305, Strawberry Hills, NSW 2012, Australia Tel: +61 2 698 2322
- >79 Myrtle St, Chippendale, NSW 2008, Australia Fax: +61 2 699 9174
- >------------------------------------------------------------------------------
-
-
- Perhapse I didn't clear myself, at least not good enough. What I meant was
- why most of the client/server *data bases* use SQL. My appologies.
- I know that some of the client/servers are not data bases, e.g. file servers
- or printer servers have nothing to do with data base. So, I guess, I
- should be more careful in future.
-
-
- k1
- ---
- ------------------------------------------------------------------------
- PUSH, if that doesn't work
- PULL, if that doesn't work
- we're probably CLOSED
- ------------------------------------------------------------------------
- Kayvon Sadeghi k.sadeghi@ieee.org
- Voice:202/244-0789
-