ORA Database Error Messages ORA-13462: invalid blocking specification August 13, 2015 mpbod ORA-13462: invalid blocking specification Cause: The specified blocking configuration was invalid. Action: Block size must always be a power of 2. 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)