「MySQL」mysql.procテーブルを使用して基礎データを取得する方法

SQLコード:
mysql>
mysql>
mysql> DELIMITER //
mysql>
mysql> CREATE FUNCTION myFunction (item_sum DECIMAL(10,2))
-> RETURNS DECIMAL(10,1)
-> BEGIN
->
->
-> RETURN ROUND(item_sum,1);
->
-> END
-> //
Query OK, 0 rows affected (0.00 sec)

mysql> DELIMITER ;
mysql>
mysql> select myFunction(123.12);
+——————–+
| myFunction(123.12) |
+——————–+
| 123.1 |
+——————–+
1 row in set (0.00 sec)

mysql>
mysql>
mysql>
mysql> SELECT * FROM mysql.proc WHERE name = 'myFunction’\G
*************************** 1. row ***************************
db: test
name: myFunction
type: FUNCTION
specific_name: myFunction
language: SQL
sql_data_access: CONTAINS_SQL
is_deterministic: NO
security_type: DEFINER
param_list: item_sum DECIMAL(10,2)
returns: decimal(10,1)
body: BEGIN
RETURN ROUND(item_sum,1);
END
definer: root@localhost
created: 2013-07-23 18:58:39
modified: 2013-07-23 18:58:39
sql_mode:
comment:
1 row in set (0.00 sec)

mysql>
mysql> drop function myFunction;
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql>

DataBase

Posted by arkgame