SQL 错误语法 1064 [英] SQL error syntax 1064

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本文介绍了SQL 错误语法 1064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

我一直试图修复一个语法错误,但我无法弄清楚.错误说明

I have a syntax error that I have been trying to fix but I can't figure it out. Error tells that there is a problem near

'SET result = CONCAT(result,charac); END IF; SET indexchar = indexchar+1;'

我正在尝试创建的完整功能:

Full function I am trying to create:

DELIMITER //
DROP FUNCTION IF EXISTS `alphabet`;
CREATE FUNCTION `alphabet` (serial_number CHAR, name VARCHAR(100)) RETURNS VARCHAR(50) 
DETERMINISTIC
BEGIN
    DECLARE result VARCHAR(40) DEFAULT '';
    DECLARE stringalpha VARCHAR(50) DEFAULT 'abcdefghijklmnopqrstuvwxyz0123456789';
    DECLARE indexchar int DEFAULT 1;
    DECLARE charlength INT;
    DECLARE charac CHAR(1);

    SET charlength = CHAR_LENGTH(stringalpha);

WHILE indexchar <= charlength DO
    SET charac = SUBSTRING(stringalpha,indexchar,1);
    IF (serial_number LIKE CONCAT('%',charac,'%') OR name LIKE CONCAT('%',charac,'%'))
        SET result = CONCAT(result,charac);
    END IF;
    SET indexchar = indexchar+1;
END WHILE

RETURN result;
END //
DELIMITER ;

我尝试写没有成功:

SET result = CONCAT('result','charac');

推荐答案

DROP FUNCTION IF EXISTS `alphabet`;
DELIMITER //
CREATE FUNCTION `alphabet` (serial_number CHAR, name VARCHAR(100)) RETURNS VARCHAR(50) 
DETERMINISTIC
BEGIN
    DECLARE result VARCHAR(40) DEFAULT '';
    DECLARE stringalpha VARCHAR(50) DEFAULT 'abcdefghijklmnopqrstuvwxyz0123456789';
    DECLARE indexchar int DEFAULT 1;
    DECLARE charlength INT;
    DECLARE charac CHAR(1);

    SET charlength = CHAR_LENGTH(stringalpha);

WHILE indexchar <= charlength DO
    SET charac = SUBSTRING(stringalpha,indexchar,1);
    IF (serial_number LIKE CONCAT('%',charac,'%') OR name LIKE CONCAT('%',charac,'%')) THEN
        SET result = CONCAT(result,charac);
    END IF;
    SET indexchar = indexchar+1;
END WHILE; -- ********************** missing semi

RETURN result;
END //
DELIMITER ;

缺少THENEND WHILE后缺少分号,顶部的分隔符在错误的行上

missing THEN, missing semi-colon after END WHILE, delimiter at the top was on the wrong line

这篇关于SQL 错误语法 1064的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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