SQL过程错误：未知数据类型。 （在位置211的“（”附近）

Question

我一直在尝试在mysql中创建此过程，但它始终会输出相同的错误

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

由于您正在使用命令GO，因此我猜想您想在TSQL中实现该过程。这是您的代码中的一些错误：

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;

或者如果您确实想要MySQL：

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 ;

随时向您说明您要实施的过程，以便获得其他支持！