Christian Theune wrote at 2008-1-29 16:32 +0100:
> ...
>When I looked up the definitions in Wikipedia about isolation and
>serializability again I didn't find any hint about the conditions how to
>decide which ordering is preferred.
>From Wikipedia ("http://en.wikipedia.org/wiki/Serializable_%28databases%29";):
A schedule is serializable, if its outcome ... is equal
to the outcome of its transactions ececuted sequentially without
overlapping.
I interpret this as "any ordering" of the transactions will do.
--
Dieter
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