We are planning to migrate 3 TB of data from Oracle 9i XML database to Oracle 10g and I have suggested the Transportable Tablespace feature, but was told that we cannot because of a 9i XML database compatibility issue. What do you recommend?
One option is to transport the data to an Oracle 9i database that will support this move and then upgrade the database...
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to 10g. This will normally be quicker than export/import for 3 TB of data. Also, you may wish to check to see if you have tables in a tablespace that are not using XML DB. Those tablespaces may be able to be transported with TTS. This can make for a shorter transition time for those tablespaces that do have XML DB components.
TTS does have its restrictions. If those restrictions apply to you, then the other alternatives are export/import, SQL*Plus COPY and homegrown solutions.
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