ORA Database Error Messages ORA-15005: name “string” is already used by an existing alias September 9, 2015 mpbod ORA-15005: name "string" is already used by an existing alias Cause: An existing alias in the diskgroup used the same name. Action: Select another alias name, or drop the existing alias. Back to previous menu 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)