Oracle SQLPlus如何导出数据到csv文件

set colsep ,
set feedback off
set heading off
set newp none
set pagesize 0
set linesize 200
set trimout on

spool /data/export.csv

select t.name||','||t.age||','||t.salary||','||t.email||','||t.title
from employee t
where t.age < 50
order by t.salary desc; 

spool off 
exit