mysql - MySQL 过程中出现意外的 IF

Question

谁能告诉我以下程序有什么问题？MySQL 说这是一个“意外的 IF”。我查找了 IF 语句的语法，但我根本看不出问题出在哪里。

create procedure spInsertAccount
(
AccountID INT,
InUse bit,
IsBanned bit,
IsPremium bit,
IsGolden bit,
Username VARCHAR(20),
Password VARCHAR(20),
Email VARCHAR(65),
LoggedInID INT,
CreateDate DATETIME
)

    SET @accountExists = (SELECT * FROM Accounts WHERE AccountID = @AccountID);

    IF (accountExists > 0) THEN

   INSERT IGNORE INTO Accounts(AccountID, InUse, IsBanned, IsPremium, IsGolden, Username, Password,
                        Email, LoggedInID, CreateDate
                       )
        values (@AccountID, @InUse, @IsBanned, @IsPremium, @IsGolden, @Username, @Password,
               @Email, @LoggedInID, @CreateDate);
        #where NOT EXISTS( SELECT * FROM Accounts WHERE AccountID = @AccountID);

    END IF;

Answer 1

试试这个

还可以在这里查看http://net.tutsplus.com/tutorials/an-introduction-to-stored-procedures/

DELIMITER //  
create procedure `spInsertAccount`
(
IN AccountID INT,
IN InUse bit,
IN IsBanned bit,
IN IsPremium bit,
IN IsGolden bit,
IN Username VARCHAR(20),
IN Password VARCHAR(20),
IN Email VARCHAR(65),
IN LoggedInID INT,
IN CreateDate DATETIME
)
BEGIN
    SET @accountExists = (SELECT * FROM Accounts WHERE AccountID = @AccountID);

    if (accountExists > 0) THEN 
        INSERT IGNORE INTO Accounts(AccountID, InUse, IsBanned, IsPremium, IsGolden, Username, Password,Email, LoggedInID, CreateDate)
        values (@AccountID, @InUse, @IsBanned, @IsPremium, @IsGolden, @Username, @Password,
               @Email, @LoggedInID, @CreateDate);
        #where NOT EXISTS( SELECT * FROM Accounts WHERE AccountID = @AccountID);

    END IF;
END //