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)

MySQL 创建自定义函数(1)

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