Overlapping checkpoint question?

This may seem like a dumb question, but when a checkpoint runs, does it keep running until all the dirty buffers are flushed down, even the ones that become dirty while the checkpoint is running -- OR, does the checkpoint only flush what was dirty when it started (ie, <= SCN).

So if a checkpoint is issued before a previous checkpoint completes, do they queue up, or does Oracle simply ignore the 2nd checkpoint?

Dom. Received on Tue Dec 09 2003 - 22:23:45 CST