SQL & PL/SQL

Hi Gurus,

I've fall within this stupid error

"cannot CREATE UNIQUE INDEX; duplicate keys found"

The issue is the Unique Index key is composed by multiple columns

CREATE UNIQUE INDEX KEY001AUTORISATIONS_APPORT ON TFT_AUTORISATIONS_APPORT

(AUT_APPORTEUR, AUT_AGENCE, AUT_PRODUIT, AUT_OPTION, AUT_TARIF, AUT_DATE_AUTORISATION)

TABLESPACE KEYS_TFT NOPARALLEL NOLOGGING

Now,

My issue is, how to find duplicates keys that are blocking this Index creation?

Thanks if you can help