oracle 将以逗号隔开的字符串'85,86,87' 转成行

SELECT   SUBSTR (T.RPT_ID,                INSTR (T.RPT_ID,’,’,1,C.LV)+ 1,                INSTR (T.RPT_ID,’,’,1,C.LV + 1)- (INSTR (T.RPT_ID,’,’,1,C.LV)+ 1))            AS RPT_ID  FROM   (SELECT ‘,’ || ‘85,86,87’ || ‘,’ RPT_ID,                 LENGTH (