SQL程序错误：未知的数据类型。 （近“（”在211位置）

Question

我一直想在MySQL中建立该程序，但它总是输出相同的错误

CREATE PROCEDURE registrarCuenta(@username, @password, @salt, @email)
BEGIN
    INSERT INTO (`Usuarios` `username`, `password`, `salt`, `email`) VALUES (@username, @password, @salt, @email)
    SET @code := lpad(conv(floor (rand()*pow(36,10)), 10, 36), 10, 0)
    WHILE(EXISTS(SELECT * FROM `Activaciones` WHERE `code` = @code))
    BEGIN
        SET @code := lpad(conv(floor(rand()*pow(36,10)), 10, 36), 10, 0)
    END
    BEGIN
        INSERT INTO `Activaciones` (`code`) VALUES (@code)
    END
END
GO;

Answer 1

由于您使用的命令GO，我将带你想实现在TSQL过程的猜测。这里是你的代码的一些错误：

CREATE PROCEDURE registrarCuenta
(
@username NVARCHAR(255), 
@password NVARCHAR(255), 
@salt NVARCHAR(255), 
@email NVARCHAR(100)
)
AS
BEGIN
    DECLARE code FLOAT(5,2); -- or whatever you like
    INSERT INTO `Usuarios` (`username`, `password`, `salt`, `email`) VALUES 
(@username, @password, @salt, @email);
    SET @code = lpad(conv(floor (rand()*pow(36,10)), 10, 36), 10, 0);
    WHILE(EXISTS(SELECT * FROM `Activaciones` WHERE `code` = @code)) -- not sure if this is correct
    BEGIN
        SET @code = lpad(conv(floor(rand()*pow(36,10)), 10, 36), 10, 0);
    END
    INSERT INTO `Activaciones` (`code`) VALUES (@code);
END
GO;

或者，如果你真的想要MySQL的：

DELIMITER $$
CREATE PROCEDURE registrarCuenta
(
IN username VARCHAR(255), 
IN password VARCHAR(255), 
IN salt VARCHAR(255), 
IN email VARCHAR(100)
)
AS
BEGIN
    DECLARE code FLOAT(5,2); -- or whatever you like
    INSERT INTO `Usuarios` (`username`, `password`, `salt`, `email`) VALUES 
(@username, @password, @salt, @email);
    SET @code = lpad(conv(floor (rand()*pow(36,10)), 10, 36), 10, 0);
    WHILE(EXISTS(SELECT * FROM `Activaciones` WHERE `code` = @code)) DO -- not sure if this is correct
        SET @code = lpad(conv(floor(rand()*pow(36,10)), 10, 36), 10, 0);
    END WHILE;
    INSERT INTO `Activaciones` (`code`) VALUES (@code);
END$$
DELIMITER ;

随意澄清你试图实现的过程中，以提供额外的支持！