ORA Database Error Messages ORA-01755: Must specify an extent number or block number June 11, 2015 mpbod ORA-01755: Must specify an extent number or block number Cause: Expecting an extent or block number but something else was specified. Action: Correct the error and reissue the command. 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)