Is there any PL/SQL command that can reference a physical file name without using IFS?
There is no PL/SQL command to do so. I'm not sure how you plan on "referencing" a physical file. But Oracle does have methods of accessing files outside the database. You can use the UTL_FILE package to open files for input and output. You can use the BFILE datatype to access files similar to the Large Object (LOB) datatypes. And in 9i, you can reference a flat file just as if it were a table in the database, using External Tables.
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