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 SELECT TO_CHAR(ADD_MONTHS(TO_DATE('2009-03','yyyy-mm'),RN),'yyyy-mm') DTM  

                    FROM

                    (

                        SELECT ROWNUM-1 AS RN FROM TB_METAP00

                        WHERE ROWNUM-1 <= MONTHS_BETWEEN(TO_DATE('2009-12', 'yyyy-mm'),TO_DATE('2009-03', 'yyyy-mm'))

                    );