mysql - 在 sql 文件中设置 MySQL 分隔符

Question

我想在 sql 文件中设置分隔符(因为我不能依赖用户通过终端来完成)。

是否有允许我设置分隔符的 mysql 语句？

使用

DELIMITER //

抛出一个错误。

# Categories schema

# --- !Ups


CREATE  TABLE IF NOT EXISTS `category` (
  `id` INT NOT NULL AUTO_INCREMENT ,
  `pid` INT NULL DEFAULT 0 ,
  `label` VARCHAR(64) NULL ,
  `active` TINYINT NULL DEFAULT 0,
  PRIMARY KEY (`id`) );

DELIMITER //

CREATE FUNCTION hierarchy_connect_by_parent_eq_prior_id(value INT) RETURNS INT
NOT DETERMINISTIC
READS SQL DATA
BEGIN
        DECLARE _id INT;
        DECLARE _parent INT;
        DECLARE _next INT;
        DECLARE CONTINUE HANDLER FOR NOT FOUND SET @id = NULL;

        SET _parent = @id;
        SET _id = -1;

        IF @id IS NULL THEN
                RETURN NULL;
        END IF;

        LOOP
                SELECT  MIN(id)
                INTO    @id
                FROM    category
                WHERE   pid = _parent
                        AND id > _id;
                IF @id IS NOT NULL OR _parent = @start_with THEN
                        SET @level = @level + 1;
                        RETURN @id;
                END IF;
                SET @level := @level - 1;
                SELECT  id, pid
                INTO    _id, _parent
                FROM    category
                WHERE   id = _parent;
        END LOOP;
END//

DELIMITER ;

# --- !Downs

#DROP TABLE category;

We got the following error: 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 'DELIMITER / CREATE FUNCTION hierarchy_connect_by_parent_eq_prior_id(value INT) ' at line 1 [ERROR:1064, SQLSTATE:42000], while trying to run this SQL script:

Answer 1

我在MySql版本中使用delimiter命令时出现同样的错误，但是这个版本处理了分隔符“;”对于语句和分隔符“|”对于存储过程和函数，我认为这可以解决问题；试试这个:

-- 任何以逗号结尾的语句(选择、创建表、删除表、更新、删除等)

创建函数 hierarchy_connect_by_parent_eq_prior_id(value INT) RETURNS INT

-- 这里是函数体

结束|

-- 此处的其他语句或函数