SELECT * FROM ( SELECT CUSTOMER_NM, SUBSTR(REGIDENT_ID, 7, 1), REGIDENT_ID, TRANSLATE (SUBSTR(REGIDENT_ID, 0, 2), 'X0123456789', 'X'), 2012 - TO_NUMBER(DECODE(SUBSTR(REGIDENT_ID, 7, 1), '3', 20, '4', 20, 19) || SUBSTR(REGIDENT_ID, 0, 2)) AS AGE, REGISTER_DT FROM CUSTOMER WHERE SERVICE_CD1 ='Y' AND ACTIVE_YN = '1' AND TRANSLATE (SUBSTR(REGIDENT_ID, 0, 2), 'X0123456789', 'X') IS NULL -- 숫자만 가져오는 -..