SQL>
SQL> SET ECHO ON
SQL> SET SERVEROUTPUT ON
SQL> DECLARE
2 fixed_length_10 CHAR(10);
3 fixed_length_20 CHAR(20);
4 var_length_10 VARCHAR2(10);
5 var_length_20 VARCHAR2(20);
6 BEGIN
7
8
9 IF 'AAAA' = 'AAAA ' THEN
10 DBMS_OUTPUT.PUT_LINE
11 ('Constant: ''AAAA'' = ''AAAA ''');
12 END IF;
13
14 END;
15 /
Constant: 'AAAA' = 'AAAA '
PL/SQL procedure successfully completed.
SQL>