SQL query for finding a set of columns that create a unique key for a table

I have a table with a dozen or so columns and no primary key defined for it. There are several million rows stored in it. Is there a SQL query I could use that would return the combination of columns that will give a unique key for the table? It is specifically an Oracle database.

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Category: sql Time: 2016-07-29 Views: 0
Tags: sql unique key

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