ORA Database Error Messages ORA-01715: UNIQUE may not be used with a cluster index June 11, 2015 mpbod ORA-01715: UNIQUE may not be used with a cluster index Cause: An attempt was made to create a cluster index with the UNIQUE attribute. Action: Remove UNIQUE from the CREATE INDEX statement. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)