Re: The C in ACID
Date: 21 Aug 2006 10:12:41 -0700
Message-ID: <1156180361.176016.297700_at_b28g2000cwb.googlegroups.com>
paul c wrote:
> My guess is that they're saying, to turn it around a bit, that the user
> must not be allowed to pervert the dbms purposes of A,I and D. And that
> the user (or DBA) must tell the dbms how to test for Consistency. It's
> true that most systems usually require the user to tell them where a
> transaction starts and where it finishes, but that's different from
> telling it how.
No, I don't think so. Explaining "Consistency" they write:
"There is no system mechanism that prevents a user from entering a bad
transaction, e.g., crediting the wrong amount to a bank account, or
charging for an item that was not shipped."
This is clearly referring to correctness, no?
I was under the impression that the terminolgy and interpretation of
ACID was pretty much agreed on, but this paper call the 'C' Consistency
but appear to mean "Correctness."