-- read user input
set echo off
set define '&'
set verify off
set serveroutput on size 10000
prompt
accept NUM prompt 'Enter a single digit number : '
prompt
declare
l_num number := #
begin
case l_num
when 1 then dbms_output.put_line('You selected one');
when 2 then dbms_output.put_line('You selected two');
when 3 then dbms_output.put_line('You selected three');
when 4 then dbms_output.put_line('You selected four');
when 5 then dbms_output.put_line('You selected five');
when 6 then dbms_output.put_line('You selected six');
when 7 then dbms_output.put_line('You selected seven');
when 8 then dbms_output.put_line('You selected eight');
when 9 then dbms_output.put_line('You selected nine');
when 0 then dbms_output.put_line('You selected zero');
end case;
end;
/