MySQL 创建自定义函数(1)
1. 创建测试自定义函数(1)
CREATE DEFINER=`dbdh`@`localhost` FUNCTION `test`.`sp_function_dbdh_three`() RETURNS varchar(255) CHARSET utf8
BEGIN
DECLARE l_NEW_STR VARCHAR(255); -- 定义变量
DECLARE l_NAYIBU_NUM1 INT;
SET l_NAYIBU_NUM1=101;
IF (l_NAYIBU_NUM1>100) THEN
SET l_NEW_STR='TWO'; --赋值
ELSE
SET l_NEW_STR='ONE';
END IF;
RETURN(l_NEW_STR);--返回值
END
2. 验证输出结果:
mysql> select sp_function_dbdh_three();
+---------------+
| sp_function_dbdh_three() |
+---------------+
| TWO |
+---------------+
1 row in set (0.00 sec)