What does the following code do ?

Declare

cursor c1 is select salary from manager;

s number(10);

n number(10):=0;

begin

open c1;

loop

fetch c1 into s ;

exit when c1%not found;

n:=n+ s ;

end loop;

dbms_output.put_line(n);

close c1;

end;

What does the following code do ?

Declare

cursor c1 is select salary from manager;

s number(10);

n number(10):=0;

begin

open c1;

loop

fetch c1 into s ;

exit when c1%not found;

n:=n+ s ;

end loop;

dbms_output.put_line(n);

close c1;

end;