MariaDB在MySQL上运行时创建函数时出错

时间:2014-03-21 07:12:13

标签: mysql mariadb

请考虑以下功能定义。我在MySQL 5.1上创建并设置它,但它在MariaDB 5.5中失败了

CREATE DEFINER=`root`@`127.0.0.1` FUNCTION `weighted_mean_by_kpi`(`KPIID` INT, `employee_id` INT, `date` DATE)
    RETURNS decimal(6,3)
    LANGUAGE SQL
    DETERMINISTIC
    READS SQL DATA
    SQL SECURITY DEFINER
BEGIN
    DECLARE done INT DEFAULT 0;
    DECLARE rating_number INT DEFAULT 0;
    DECLARE rating_count INT DEFAULT 0;
    DECLARE rating_total INT DEFAULT 0;
    DECLARE weighted_total DOUBLE DEFAULT 0;

    DECLARE cur CURSOR FOR
            SELECT COUNT(rating), rating FROM employees_KPIs WHERE kpi_id = KPIID AND employee_id = employee_id AND employees_KPIs.created_at LIKE CONCAT("%",DATE_FORMAT(date,'%Y-%m'),"%") GROUP BY rating;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;

    OPEN cur;
    RATING: LOOP
            FETCH cur INTO rating_count, rating_number;
            IF done = 1 THEN
                    LEAVE RATING;
            END IF;
            SET weighted_total =  weighted_total + (rating_number * rating_count);
            SET rating_total = rating_total + rating_count;
    END LOOP RATING;
    return (weighted_total/rating_total);
    #return (weighted_total);
    CLOSE cur;
END

我收到以下错误:

  

第1行的错误1064(42000):您的SQL语法出错;查看与您的MariaDB服务器版本对应的手册,以获得在''附近使用的正确语法。在第8行

由于

1 个答案:

答案 0 :(得分:0)

Mysql看到';'函数中的分隔符会破坏您的CREATE FUNCTION语句。

要避免这种情况,请在定义函数之前更改分隔符,然后再将其更改回来:

喜欢:

DELIMITER //

-- your create function definition statement here

//
DELIMITER ;

在您的代码中,在;找到了第一个line 8分号,它尝试将代码执行到';',并且语法无效,因为它不完整({{ 1}}没有BEGIN)。