我可以用更好的方式重写这些语句吗？

Question

我可以用更好的方式重写这些语句，使用一个更新语句或其中的某个案例，或者我只是将它们保留下来并包装在一个事务中？

DECLARE @currentFailedPassCount int = 
     (SELECT FailedPasswordAttemptCount FROM Users WHERE Username=@username); 
UPDATE Users 
     SET FailedPasswordAnswerAttemptCount=FailedPasswordAnswerAttemptCount+1 
     WHERE Username=@username; 
IF(@currentFailedPassCount=5) 
     UPDATE Users 
     SET IsLockedOut=1 
     WHERE Username=@username; 

Answer 1

事情是这样的：

UPDATE Users 
SET FailedPasswordAnswerAttemptCount=FailedPasswordAnswerAttemptCount+1, 
    IsLockedOut = CASE 
        WHEN FailedPasswordAnswerAttemptCount >= 4 THEN 1 
        ELSE 0 
        END 
WHERE Username=@username; 

我不认为它的内容很好（个人喜好），但它是一个单独的语句。

Answer 2

尝试：

DECLARE @currentFailedPassCount int = (SELECT FailedPasswordAttemptCount FROM Users  WHERE Username=@username); 

IF(@currentFailedPassCount=4) 
BEGIN 
    UPDATE Users 
    SET FailedPasswordAnswerAttemptCount=5, IsLockedOut=1 
    WHERE Username=@username; 
END 
ELSE 
BEGIN 
    UPDATE Users 
    SET FailedPasswordAnswerAttemptCount=FailedPasswordAnswerAttemptCount+1 
    WHERE Username=@username; 
END 

Answer 3

UPDATE Users 
SET 
    FailedPasswordAnswerAttemptCount=FailedPasswordAnswerAttemptCount + 1, 
    IsLockedOut=case 
     when FailedPasswordAnswerAttemptCount = 4 then 1 
     else IsLockedOut 
    end 
WHERE Username=@username