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2NF Partial dependency is removed in second normal form. In this form, there must not be any partial dependency of any column on primary key. It means that for a table that has concatenated primary key, each column in the table that is not part of the primary key must depend upon the entire concatenated key for its existence. A table fails Second normal form when any column depends only on one part of the concatenated key. Prajakta Pandit 03-15-2017 03:05 AM

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