EXP Database Error Messages EXP-00018: datatype (number) for column string, table string.string is not supported August 18, 2015 mpbod EXP-00018: datatype (number) for column string, table string.string is not supported Cause: Export does not support the referenced datatype. Action: Retry with an acceptable datatype (CHAR, NUMBER, DATE, LONG, or RAW). 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)