Question

我在执行下面的脚本提及时遇到错误

您的SQL语法有错误;检查手册对应于您的MySQL服务器版本，以便使用正确的语法靠近'$$

   GKCHGYEGRGFQGRHYEGRSDGPNGQL  56
   WGCGGYESRGFQGRHYEGGGDCPNGQG  56
   GLCCGYEGRGFQCRHYEGGGDGPNDQL  56
   GKGCGYEGRGFQGRHYEHGIDKDHFFR  43
   PYGSGGNRARRSGCSWMLYEQVNYSGD  25
   DFTEDLRCLQDVFAFNEIVSLNVLERL  25
   REDYRRQSIYELSNYRCRQYLTDPSDY  24

Answer 1

在创建程序之前缺少DELIMITER

DELIMITER $$

DROP PROCEDURE IF EXISTS `GetTopParentGivenDepth`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `GetTopParentGivenDepth`(GivenDepth INT)
BEGIN
    DECLARE X,Y,x1,x2 INT;
    SET X = 0;
    SET Y = 1;
    SET @SQ = 'SELECT DISTINCT A0.id FROM categories A0';
    WHILE Y < GivenDepth DO
        SET @SQ = CONCAT(@SQ,' INNER JOIN categories A',Y,' ON A',X,'.id = A',Y,'.parent_id');
        SET X = Y;
        SET Y = X + 1;
    END WHILE;
    SET @SQ = CONCAT(@SQ,' WHERE A0.parent_id = 0');
    SELECT @SQ;
    PREPARE stmt FROM @SQ;
    EXECUTE stmt;
    DEALLOCATE PREPARE stmt;
END$$

DELIMITER ;

在mysql中创建存储过程时出错

1 个答案: