BEGIN

DBMS_OUTPUT.put_line ('Test 1: ' || betwnstr (NULL, 3, 5));

DBMS_OUTPUT.put_line ('Test 2: ' || betwnstr ('abcdefgh', 0, 5));

DBMS_OUTPUT.put_line ('Test 3: ' || betwnstr ('abcdefgh', 3, 5));

DBMS_OUTPUT.put_line ('Test 4: ' || betwnstr ('abcdefgh', -3, -5));

DBMS_OUTPUT.put_line ('Test 5: ' || betwnstr ('abcdefgh', NULL, 5));

DBMS_OUTPUT.put_line ('Test 6: ' || betwnstr ('abcdefgh', 3, NULL));

DBMS_OUTPUT.put_line ('Test 7: ' || betwnstr ('abcdefgh', 3, 100));

END;

/

/*======================================================================

| Supplement to the fifth edition of Oracle PL/SQL Programming by Steven

| Feuerstein with Bill Pribyl, Copyright (c) 1997-2009 O'Reilly Media, Inc.

| To submit corrections or find more code samples visit

| http://oreilly.com/catalog/9780596514464/

*/