update in sybase

sjy345

update cource set teacher_name = teacher.name where cource.teacher_id = teacher.id

Does this update operation support sybase?

baobaoly01

update cource set teacher_name = teacher.name from teacher where cource.teacher_id = teacher.id

leoaikeer

update cource a
    set (teacher_id ,teacher_name) =
    (select
           b.teacher_id ,b.teacher_name
      from student b
      where condition 1
    )
   where condition 2

How to deal with this kind of statement in Sybase?