MySQL CREATE FUNCTION语法 [英] MySQL CREATE FUNCTION Syntax
本文介绍了MySQL CREATE FUNCTION语法的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我试图在MySQL中创建一个函数:
以下是SQL代码:
<$ p $创建函数F_Dist3D(x1十进制,y1小数)
RETURNS十进制
DETERMINISTIC
BEGIN
DECLARE dist decimal;
SET dist = SQRT(x1 - y1);
RETURN dist;
END;
我收到以下错误:
#1064 - 你的SQL语法有错误;
检查与您的MySQL
服务器版本相对应的手册,在第10行附近使用正确的语法
我在phpMyAdmin中运行这个create语句。这个函数有什么问题?
解决方案
您必须覆盖您的;
分隔符类似于 $$
来避免这种错误。
在函数定义之后,您可以设置分隔符回到;
。
这应该起作用:
DELIMITER $$
CREATE FUNCTION F_Dist3D(x1十进制,y1十进制)
RETURNS十进制
DETERMINISTIC
BEGIN
DECLARE dist decimal;
SET dist = SQRT(x1 - y1);
RETURN dist;
END $$
DELIMITER;
I am trying to create a function in MySQL:
Here is the SQL code:
CREATE FUNCTION F_Dist3D (x1 decimal, y1 decimal)
RETURNS decimal
DETERMINISTIC
BEGIN
DECLARE dist decimal;
SET dist = SQRT(x1 - y1);
RETURN dist;
END;
I am getting the following error:
#1064 - You have an error in your SQL syntax;
check the manual that corresponds to your MySQL
server version for the right syntax to use near '' at line 10
I am running this create statement in phpMyAdmin. What is wrong with this function?
解决方案
You have to override your ;
delimiter with something like $$
to avoid this kind of error.
After your function definition, you can set the delimiter back to ;
.
This should work:
DELIMITER $$
CREATE FUNCTION F_Dist3D (x1 decimal, y1 decimal)
RETURNS decimal
DETERMINISTIC
BEGIN
DECLARE dist decimal;
SET dist = SQRT(x1 - y1);
RETURN dist;
END$$
DELIMITER ;
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