여러 row를 하나의 row로 출력 12345678SELECT WMSYS.WM_CONCAT (MESSAGE) MESSAGE FROM (SELECT LO.MESSAGE MESSAGE FROM SMEIS.S_LECTUREOPINION LO WHERE LO.YEAR = '2014' AND LO.SEASONCODE = '11' AND LO.SUBJECTCODE = '380031' AND LO.DIVISION = '12' AND MESSAGE IS NOT NULL)cs database/oracle 2014.09.03