我可以用更好的方式重寫這些語句嗎？

Question

我可以用更好的方式重寫這些語句，使用一個更新語句或其中的某個案例，或者我只是將它們保留下來幷包裝在一個事務中？

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

事情是這樣的：

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

我不認爲它的內容很好（個人喜好），但它是一個單獨的語句。

Answer 2

嘗試：

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