Настройте файл .sql, добавив в конце выход, такой как этот.
set feedback off
set head off
set sqlformat csv
spool emp.csv
select * from emp;
exit
Запустите, как обычно,
$ sql klrice/klrice @spool
результирующий файлэто CSV, как и ожидалось.
$ more emp.csv
7369,"SMITH","CLERK",7902,17-DEC-80,800,,20,5555555555554444
7499,"ALLEN","SALESMAN",7698,20-FEB-81,1600,300,30,4929043445510803
7521,"WARD","SALESMAN",7698,22-FEB-81,1250,500,30,6011823599867990
7566,"JONES","MANAGER",7839,02-APR-81,2975,,20,375055626849864
7654,"MARTIN","SALESMAN",7698,28-SEP-81,1250,1400,30,4929727676353442
7698,"BLAKE","MANAGER",7839,01-MAY-81,2850,,30,5262511577814781
7782,"CLARK","MANAGER",7839,09-JUN-81,2450,,10,6011983140249807
7788,"SCOTT","ANALYST",7566,09-DEC-82,3000,,20,343764091280047
7839,"KING","PRESIDENT",,17-NOV-81,5000,,10,5186144047197497
7844,"TURNER","SALESMAN",7698,08-SEP-81,1500,0,30,6011331487563093
7876,"ADAMS","CLERK",7788,12-JAN-83,1100,,20,378775397941460
7900,"JAMES","CLERK",7698,03-DEC-81,950,,30,4916225758678451
7902,"FORD","ANALYST",7566,03-DEC-81,3000,,20,378355660338882
7934,"MILLER","CLERK",7782,23-JAN-82,1300,,10,34567
$