Concurrency control

Concurrency control

Post by radha.mano.. » Sat, 27 Sep 2003 05:48:22

Does postgresql implements the FIRST COMMITTER WINS policy of snapshot
isolation method?



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1. Concurrency control in SAS

We are considering providing a web-based data entry for the SAS data. It is
very possible that several clients will be writing into the same table
simultaneously, though updating the same record at a time is much less
probable. What can be done to insure a proper concurrency control? Does SAS
have any built-in capabilities? I read in
that SAS IOM Data Provider implements pessimistic and optimistic locking,
but this requires IOM licensing. Does anybody know if Onyx,, has any concurrency control

Thank you,


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