MySQL Tutorial/Procedure Function/VARCHAR

VARCHAR(255) DEFAULT "This will not be padded"

mysql>
mysql> delimiter $$
mysql>
mysql> CREATE PROCEDURE myProc()
    -> BEGIN
    ->      DECLARE l_varchar   VARCHAR(255) DEFAULT "This will not be padded";
    ->
    ->     select l_varchar;
    -> END$$
Query OK, 0 rows affected (0.00 sec)
mysql> delimiter ;
mysql>
mysql> call myProc();
+-------------------------+
| l_varchar               |
+-------------------------+
| This will not be padded |
+-------------------------+
1 row in set (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> drop procedure myProc;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql>

VARCHAR type variable

mysql>
mysql>
mysql> delimiter $$
mysql>
mysql> CREATE PROCEDURE myProc()
    -> BEGIN
    ->     DECLARE my_varchar     VARCHAR(30)
    ->             DEFAULT "Hello World!";       /* 30 bytes of text*/
    ->
    ->     select my_varchar;
    -> END$$
Query OK, 0 rows affected (0.00 sec)
mysql> delimiter ;
mysql>
mysql> call myProc();
+--------------+
| my_varchar   |
+--------------+
| Hello World! |
+--------------+
1 row in set (0.00 sec)
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> drop procedure myProc;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql>