SELECT 
     EMP_CODE AS CODE
   ,EMP_LAST_NAME || EMP_FIRST_NAME AS NAME
   ,EMP_ENG_NAME AS ENG_NAME
   ,CASE 
        WHEN EMP_ENG_NAME IS NULL THEN '未入力'
        WHEN LENGTH(REPLACE(SUBSTR(EMP_ENG_NAME, 1, 11), ' ', '')) = 0 THEN '未入力'
        ELSE REPLACE(SUBSTR(EMP_ENG_NAME, 1, 11), ' ', '')
    END AS CUTOUT_STR
FROM EMP;