如何把检索结查保存到文件里

在 Sybase 的 SQL 参考手册里有这样一条语句,但不能执行,为什么?
select * from employee; output to employee.txt
[91 byte] By [dowhileprogramming-鸿渐] at [2008-1-9]
# 1
知道了,sybase 说 not applicable
dowhileprogramming-鸿渐 at 2007-10-19 > top of Msdn China Tech,其他数据库开发,Sybase...
# 2
but you can do like this
isql -Usa -Pxxx -ofilename
select * from employee
go