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Primary Key and Index.

edited Feb 3, 2013 10:21PM in Database Tuning (MOSC) 6 commentsAnswered
Do we need to create a separate index on a primary key column.
Database Version: Oracle 11G.

Example, Table A1 has 10 columns Acol1, Acol2, Acol3... Acol10.

Primary Key is on Acol1 and Acol2.

Should i create a separate index on these 2 columns other than the primary key? Else will the internal primary index help?

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