I need to implement something like Oracle sequences in Sybase. I
found a good article at:
http://www.isug.com/Sybase_FAQ/ASE/section6.2.html
There's only one problem. All the sequence implementations listed
don't deal with long transactions. Using these implementations I
would get dead-locks whenever two long transactions needed a sequence
for the same table.
Has anybody solved this problem?
Or, does any body have the following article:
ISUG Technical Journal Online, 1st Quarter, 1998
Another Kind of Surrogate Primary Key
By Matt Townsend
This article by Matt Townsend supposedly contains a Sybase sequence
implementation that:
"is based on the millisecond field of the
date/time stamp. His solution guarantees
uniqueness without any surrogate tables or
extra inserts/updates, and is a superior
performing solution to other methods described
here (including Identities), but cannot
support exact sequential numbers."
Thanks,
-Jim
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