Use Dblink and do a select off of a sequence on just one of the boxes?
You could set up a view that uses DBlink on all the boxes that points to the master seq box.

should work.

Scott Marlowe wrote:

So, how can two databases, not currently talking to one another,
guarantee that their GUIDs don't collide? using a large randomly
generated name space only reduces the chances of collision, it doesn't
actually guarantee it.

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