将列中的所有文本转换为MySql中的Camel Case

Question

我正在寻找一种方法将我在数据库中的所有文本转换为Camel Case/Proper Case

即从... CAMEL HAS LEGS到Camel Has Legs

我在这里找到了一个答案,要求创建一个函数(下面),然后使用该函数转换文本.

我5.6.32-78.1在共享托管服务器上使用MySQL版本:当我执行以下功能时,我收到错误

#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 3 

我该如何纠正这个错误？我是MySQL的新手

CREATE FUNCTION `proper_case`(str varchar(128)) RETURNS varchar(128)
BEGIN
DECLARE n, pos INT DEFAULT 1;
DECLARE sub, proper VARCHAR(128) DEFAULT '';

if length(trim(str)) > 0 then
    WHILE pos > 0 DO
        set pos = locate(' ',trim(str),n);
        if pos = 0 then
            set sub = lower(trim(substr(trim(str),n)));
        else
            set sub = lower(trim(substr(trim(str),n,pos-n)));
        end if;

        set proper = concat_ws(' ', proper, concat(upper(left(sub,1)),substr(sub,2)));
        set n = pos + 1;
    END WHILE;
end if;

RETURN trim(proper);
END

Answer 1

concat ( upper(substring(name,1,1)), lower(right(name,length(name)-1)))

Answer 2

您需要使用该DELIMITER语句来更改查询分隔符.否则,;身体内部结束CREATE FUNCTION声明.

请参阅MySQL中的分隔符

DELIMITER $$

CREATE FUNCTION `proper_case`(str varchar(128)) RETURNS varchar(128)
BEGIN
DECLARE n, pos INT DEFAULT 1;
DECLARE sub, proper VARCHAR(128) DEFAULT '';

if length(trim(str)) > 0 then
    WHILE pos > 0 DO
        set pos = locate(' ',trim(str),n);
        if pos = 0 then
            set sub = lower(trim(substr(trim(str),n)));
        else
            set sub = lower(trim(substr(trim(str),n,pos-n)));
        end if;

        set proper = concat_ws(' ', proper, concat(upper(left(sub,1)),substr(sub,2)));
        set n = pos + 1;
    END WHILE;
end if;

RETURN trim(proper);
END 
$$

DELIMITER ;