How random do you need them to be?
Oracle will return the rows in physical order (which may match input order if you haven't done a lot of page splits during the load) but not in sorted order unless you specifically say "Order By" in the query.

How important is the randomness?
You could approach some level of randomness by repeatedly catting the files together and then splitting them at different points and catting them together again... kind of like shuffling cards...

In reply to Re^3: Strategy for randomizing large files via sysseek by poqui
in thread Strategy for randomizing large files via sysseek by Anonymous Monk

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