SELECT '1' CLASSTIME FROM DUAL UNION SELECT '2' CLASSTIME FROM DUAL UNION SELECT '3' CLASSTIME FROM DUAL UNION SELECT '4' CLASSTIME FROM DUAL UNION SELECT '5' CLASSTIME FROM DUAL UNION SELECT '6' CLASSTIME FROM DUAL UNION SELECT '7' CLASSTIME FROM DUAL UNION SELECT '8' CLASSTIME FROM DUAL UNION SELECT '9' CLASSTIME FROM DUAL UNION SELECT '10' CLASSTIME FROM DUAL UNION SELECT '11' CLASSTIME FROM DUAL UNION SELECT '12' CLASSTIME FROM DUAL