VARCHAR type variable : VARCHAR « Procedure Function « MySQL Tutorial

1. MySQL Tutorial
2. Procedure Function
3. VARCHAR

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>