SQL> Declare
2 i number:=0;
3 n number;
4 sum1 number:=0;
5 Begin
6 n:=&n;
7 while i
8 loop
9 sum1:=sum1+i;
10 dbms_output.put_line(i);
11 i:=i+1;
12 end loop;
13 dbms_output.put_line('The sum is:'||sum1);
14 End;
15 /
Enter value for n: 10
old 6: n:=&n;
new 6: n:=10;
PL/SQL procedure successfully completed.