*デコードを使用..
SELECT ENAME, SAL,
DECODE
(
COMM,
COMM >=0, (SELECT COMM FROM EMP WHERE COMM>=0),--I KNOW THIS IS A MISTAKE
'NO COMM'
) COMMISSION
FROM EMP
ORDER BY COMISSION
- で算術演算を記述できますか
DECODE
これは私が得たエラーです
COMM >=0, (SELECT COMM FROM EMP WHERE COMM>=0),
*
ERROR at line 5:
ORA-00907: missing right parenthesis
前もって感謝します