登入存儲過程

Question

我設計一個存儲過程，一個網站的登入，並有

IF EXISTS (SELECT Member where Email=@EMail and PW=@PW)  
BEGIN 
    Select MemberId . . . 
END 
ELSE  
BEGIN  
    UPDATE FailCount +1 

我應該如何在下一個檢查故障計數> = FailLimit？

具體地說我已經搜索以下：

1. IF. . . THEN
2. CASE . . WHEN
3. DECLARE變量和SELECT INTO這些變量然後將它們進行比較（而不是從同一表中比較兩個選擇）。

所有建議表示讚賞！

Answer 1

SELECT @Fail = FailCount 
FROM USER_TABLE 
WHERE Email = @EMail; 

IF @Fail >= @FailLimit THEN 
BEGIN 
    /* PUT YOUR CODE HERE */ 
END 

ELSE 
BEGIN 

    IF EXISTS (SELECT Member FROM USER_TABLE where Email=@EMail and PW=@PW)  
    BEGIN 
     Select MemberId . . . 
    END 

    ELSE  
    BEGIN  
     UPDATE USER_TABLE 
     SET FailCount = FailCount + 1 
     WHERE Email = @EMail; 
    END 
END