Please help.

How do I compare two records in SQL*Plus by each field pair?

-- I have two tables with the same structure, but the records in the
two tables may be the same and may be different. I can use minus to
select the different records between the two tables, but how do I do to
pick out which field of the different record(s) that make the
difference? One table may have dozens of fields, and the differences
may be to the thousands of records, and all fields could be different.

Thanks.