Question

您好我试图使用此sp插入插入语句：

call insertuser (1, '077788899965', 'Digest 1.0', ':=', 'asjdfhiuoadshgiadufg');

SP代码：

DELIMITER$$

CREATE PROCEDURE insertuser (IN IdParam INT, IN UserNameParam varchar(64), IN AttributeParam varchar(64), IN OpParam  char(2), IN ValueParam varchar(253)) 
BEGIN 

    // Delete user if they already exist

    DELETE FROM radcheck 
    WHERE username = UserNameParam; 

    // Insert

    INSERT INTO  radcheck (id, username, atrribute, op, value) 
    SELECT (IdParam, UserNameParam, AttributeParam, OpParam, ValueParam); 

END$$

但我收到的错误是：

ERROR 1241（21000）：操作数应包含1列

知道如何解决这个问题吗？

Answer 1

DELIMITER $$

CREATE PROCEDURE insertuser (IN IdParam INT, IN UserNameParam varchar(64), 
                             IN AttributeParam varchar(64), IN OpParam  char(2), 
                             IN ValueParam varchar(253)) 
BEGIN 
    DELETE FROM radcheck 
    WHERE username = UserNameParam; 

    INSERT INTO  radcheck (id, username, atrribute, op, `value`) 
    SELECT IdParam, UserNameParam, AttributeParam, OpParam, ValueParam;
END
$$

有两个问题：

在DELIMITER
//不是MySQL中的评论开头。使用/* */

如果您使用像 MySQL Workbench 这样的SQL IDE，则会突出显示这些错误，并且更容易修复。

MySQL SP：ERROR 1241（21000）

1 个答案: