Mapping Oracle BLOB type to Common SQL type

Greetings. Ok, I'm trying to produce a database table that can be used by
our app from either MySQL or Oracle. What is the Common SQL mapping for type
BLOB? I *was* using MySQL's TEXT type, which mapped to (string 65536);
however, since Oracle doesn't have a TEXT type, BLOB seemed suitable. But
now I must find a mapping, and BLOB isn't a supported type in Common SQL.
Thanks much...

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David E. Young
dyoung@bloodhoundinc.com
http://www.bloodhoundinc.com
http://lisa.sourceforge.net

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  -- Franz Joseph Haydn (1732-1809)