DOUBLE DEFAULT 2e45 : DOUBLE « Procedure Function « MySQL Tutorial

1. MySQL Tutorial
2. Procedure Function
3. DOUBLE

mysql>
mysql> delimiter $$
mysql>
mysql> CREATE PROCEDURE myProc()
    -> BEGIN
    ->     DECLARE l_double    DOUBLE DEFAULT 2e45;
    ->
    ->     select l_double;
    -> END$$
Query OK, 0 rows affected (0.00 sec)

mysql> delimiter ;
mysql>
mysql> call myProc();
+----------+
| l_double |
+----------+
|   2e+045 |
+----------+
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 (0.02 sec)

mysql>
mysql>