SQL>
SQL> declare
2 v_tx char(5);
3 begin
4 v_tx:='A';
5
6 if v_tx = 'A' and v_tx = 'A ' then
7 DBMS_OUTPUT.put_line('Equal!');
8 end if;
9 end;
10 /
Equal!
PL/SQL procedure successfully completed.
SQL>