Question

当我遇到下面执行查询的错误时，我正在使用MySQL。

CREATE PROCEDURE insert_apply(
IN in_username VARCHAR(25),
IN in_machine_id INT
)
BEGIN
  START TRANSACTION;
   IF EXISTS (SELECT * FROM machine WHERE machine.id = in_machine_id AND machine.available = 1) THEN
    INSERT INTO user_machine VALUES (in_username, in_machine_id);
    UPDATE machine SET machine.available = 0 WHERE machine.id = in_machine_id;
   END IF;
  COMMIT;
END;

MySQL错误是，

#1064 - 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 '' at line 6

＆＃34;靠近＆＃39;＆＃39; ＆＃34;意思？如何更正此错误？

非常感谢。

Answer 1

我认为这些对你有用。实际上你错过了DELIMITER //

DELIMITER //
CREATE PROCEDURE insert_apply(
IN in_username VARCHAR(25),
IN in_machine_id INT
)
BEGIN
  START TRANSACTION;
   IF EXISTS (SELECT * FROM machine WHERE machine.id = in_machine_id AND machine.available = 1) THEN
    INSERT INTO user_machine VALUES (in_username, in_machine_id);
    UPDATE machine SET machine.available = 0 WHERE machine.id = in_machine_id;
   END IF;
  COMMIT;
END;

谢谢。

在＆＃39;＆＃39;附近的mysql语法错误，我该如何纠正？

1 个答案: