I have two tables
The First one contains information about staff who take courses

The second table information about all courses available and it must taking by staff
I want quereu SQL to find the remaining course for every staff
for example :-
Rami intro. Java
Rami into. to Orcad
Rami PIC
Rami intro. to C++
Rayan Intro. Flash
Rayan Intro to c++
Rayan PIC
Rayan Intro. to Photoshop
Rayan Into. to Orcad
.
.
.
.
.
.
.
.
and so on for all staff
With these 3 tables …
Courses:
Staff:
StaffCourses:
… this query …
… produces this result set: