the situation is like the following a client with a DB on 10g r1 they need to upgrade to 11g;
as you may know there are multible problems trying to that VIA DBUA ot manual upgrade specially and the TIMEZONE issues are not fixed and are not availble for this windows 10gr1.
we are thinking of using export or datapump as they will save a lot of time.
but after doing so how do we reatach the new DB with the old rman catalog .
and is this a good practice or not ;
will usinf set DBID to the same like the origianl DB and craeting it with the same sid fool the catalog into thinking it is the same .
i do not not think so because of the control file !!!