Yes, any datafiles opened for read-write will start getting checkpointed, thus having (near)current SCN in them.. Tanel. _____ From: Ram Raman [mailto:veeeraman@xxxxxxxxx] Sent: Friday, August 25, 2006 00:24 To: tanel.poder.003@xxxxxxx Cc: alever@xxxxxxxxx; oracle; oracle-l Subject: Re: What happens during open resetlogs? I have wondered what happens during the transportable tablespaces but I got the answer today. Thanks for the explanation. And I am guessing if we plug in a TTS with a lower SCN it will bump the SCNs in the new incoming files.