We are considering migrating some Oracle Databases
across platforms -- from Solaris to HPUX.
We'll, of course, be using Export-Import.

I've been asked to come up with a list of issues / cautions
to consider.

e.g. I can think of 

Pre-Requisites :
        1.  The right [same or higher] version of  the Oracle RDBMS + Patchset Release 
must be installed.
        2.  The database should be created with a minimum block-size of 4K, preferably 
8K.
        3.  The database character-set should preferably be the same or a higher 
character-set.  [eg US7ASCII or WE8ISO8859P1 or UTF8]
        4.  The NLS_LANG settings during the Export and Import must be complaint.


Potential Issues :

        1.  BFILE references will become invalid as BFILEs are stored outside the 
database.
        2.  If there are tables containing LOBs, the import can be slower.  [There was 
an 8i bug requiring COMMIT=Y to improve Import performance but commiting at every 
record, instead of at every buffer-size].


Recommendations / experiences appreciated.

Hemant K Chitale
http://hkchital.tripod.com
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Author: Hemant K Chitale
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