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- Newsgroups: comp.databases
- Path: sparky!uunet!van-bc!rsoft!mindlink!a269
- From: Mischa_Sandberg@mindlink.bc.ca (Mischa Sandberg)
- Subject: Re: What is Sybase anyway?
- Organization: MIND LINK! - British Columbia, Canada
- Date: Tue, 26 Jan 1993 04:49:23 GMT
- Message-ID: <20052@mindlink.bc.ca>
- Sender: news@deep.rsoft.bc.ca (Usenet)
- Lines: 35
-
- At the risk of being part of an avalanche of replies ...
-
- Sybase is an SQL database (server) that runs primarily on large Unix boxes.
- It is a "client/server" database, in that you can compile procedures
- in the server's own procedural language, then invoke them by name and
- with parameters, from a client process or client computer.
- It's SQL-compliant to ANSI Level 2 (i.e. not embedded SQL as in Ingres
- and Informix) and supports triggers (on DELETE from MYTABLE do SOMETHING,
- sort of), user-defined datatypes in a limited way, and datatype- or
- column-bound rules and default values. Its strong suit seems to be
- [BEGIN OPINION> high-speed transaction processing, especially single-row
- updates with referential integrity checks; as opposed to mass query
- processing. Its query optimizer is definitely leant toward the update
- side, and it is based on 70's technology indexing (B-trees) ---
- anyone from Sybase care to correct me on that? <END OPINION].
- I designed the benchmark that our company did, of Oracle, Informix
- and Sybase; an even mix of single-row updates and mass-row queries.
- The performance was dominant at the time; these things tend to
- seesaw around, but the Sybase system delivered what was promised,
- which I cannot say for the others.
-
- We are really pleased with it for tables into the 20Mb range, and
- can work with it for tables into the 100Mb range. I've received
- mail from someone who uses 10Gb tables in Sybase, but with some
- of the practical problems we've encountered, I'd say that
- you have to plan your ops very carefully beyond 100Mb.
-
- If you have any further questions ...
- --
- Mischa Sandberg ... Mischa_Sandberg@mindlink.bc.ca
- or uunet!van-bc!rsoft!mindlink!Mischa_Sandberg
- *-*-*-*-*-*-*-*-*-*-*
- Engineers think equations are an approximation of reality.
- Physicists think reality is an approximation of the equations.
- Mathematicians never make the connection.
-