检查是否存在记录，如果是“更新”，如果没有“插入”

我要检查表PREMIUM_SERVICE_USER记录是否存在 strClientID更新timeValid为+30如果strClientID插入到premium_service_user表中没有任何记录。检查是否存在记录，如果是“更新”，如果没有“插入”

我在做什么错？

它增加timeValid为+30天，但也插入另一行。

SELECT @pre_var = count(*) 
FROM PREMIUM_SERVICE_USER 
WHERE strClientID = @strClientID 

/* bronze premium - 200 cash */ 
IF @Premium = 1 
BEGIN 
    INSERT INTO PREMIUM_SERVICE_USER 
     (strClientID, timeReg, timeValid, bCurrent, durum) 
    VALUES 
     (@strClientID,getdate(),getdate() + 30,'1','1') 

    UPDATE TB_USER 
    SET cash = cash+200 
    WHERE strAccountID = @strClientID 
END 

IF @Premium = 1 AND @pre_var = 1 
BEGIN 
    UPDATE PREMIUM_SERVICE_USER 
     SET timevalid = timevalid+30 where strClientID = @strClientID 
    UPDATE PREMIUM_SERVICE_USER 
     SET bCurrent = 1 where strClientID = @strClientID 
    UPDATE TB_USER 
     SET cash = cash+200 WHERE strAccountID = @strClientID 
END

来源

2010-07-06 Ali Poder

除了下面找到了修复，我也建议你结合UPDATE语句成PREMIUM_SERVICE_USER – 2010-07-06 19:58:33

你的问题是跑第一if不考虑@pre_var值。

这是一个稍微不同的方式，如果PREMIUM_SERVICE_USER很大，效率会稍高一点。

if @Premium = 1 
    begin 
    if exists(Select 1 From PREMIUM_SERVICE_USER Where strClientID = @strClientID) 
     BEGIN 
     update PREMIUM_SERVICE_USER set timevalid = timevalid+30 where strClientID = @strClientID 
     update PREMIUM_SERVICE_USER set bCurrent = 1 where strClientID = @strClientID 
     UPDATE TB_USER SET cash = cash+200 WHERE strAccountID = @strClientID 
     END 
    ELSE 
     BEGIN 
     INSERT INTO PREMIUM_SERVICE_USER (strClientID, timeReg, timeValid, bCurrent, durum) VALUES (@strClientID,getdate(),getdate() + 30,'1','1') 
     UPDATE TB_USER SET cash = cash+200 WHERE strAccountID = @strClientID 
     END 
    end

来源

2010-07-06 18:57:10 Donnie

谢谢:)这完全有效 – 2010-07-06 19:14:00

您正在对行进行计数，但没有在您的决策中使用它。这里是一个决策结构可能有用

Select @pre_var = count(*) From PREMIUM_SERVICE_USER Where strClientID = @strClientID 

IF @pre_var = 0 
BEGIN 
    /* Run Insert Code Here */ 
END 
ELSE 
BEGIN 
    /* Run Update Code Here */ 
END 


IF @Premium = 1 
BEGIN 
    /* Run Premier Members Update Code Here */ 
END 
ELSE 
BEGIN 
    /* Run Non-Premier Members Update Code Here */ 
END

或者这一个..

IF @pre_var = 0 
BEGIN 
    /* Run Insert Code Here */ 
END 
ELSE 
BEGIN 
    IF @Premium = 1 
    BEGIN 
     /* Run Premier Members Update Code Here */ 
    END 
    ELSE 
    BEGIN 
     /* Run Non-Premier Members Update Code Here */ 
    END 
END

来源

2010-07-06 18:56:57

一个单独的语句，但如果计数返回我1，则意味着存在记录表上。我想要做的是如果表上存在行更新。你的建议是否意味着如果计数返回0更新？ – 2010-07-06 18:58:49

看起来您正在检查第一个IF语句中的错误变量。如果@Premium = 1，那么你会看到这种行为。

/* bronze premium - 200 cash */ 
IF @pre_var = 0 
BEGIN 
INSERT INTO PREMIUM_SERVICE_USER (strClientID, timeReg, timeValid, bCurrent, durum) VALUES (@strClientID,getdate(),getdate() + 30,'1','1') 
UPDATE TB_USER SET cash = cash+200 WHERE strAccountID = @strClientID 
END 

IF @Premium = 1 AND @pre_var = 1 
BEGIN 
update PREMIUM_SERVICE_USER set timevalid = timevalid+30 where strClientID = @strClientID 
update PREMIUM_SERVICE_USER set bCurrent = 1 where strClientID = @strClientID 
UPDATE TB_USER SET cash = cash+200 WHERE strAccountID = @strClientID 
END

来源

2010-07-06 19:00:46

CREATE PROCEDURE sp_UpdateProcessed 
AS 
BEGIN 
    DECLARE @Processed_Status NVARCHAR(256) 
    SET @Processed_Status = 'ACTIVE' 
    IF(@Processed_Status <> 'Processed') 
    BEGIN 
     SET @Processed_Status = 'Active' 
     UPDATE ST_JnlMediumMoveNew 
     SET ST_JnlMediumMoveNew.Process_Status = @Processed_Status 
    END 
END

来源

2011-11-25 07:03:01 Rubi

检查是否存在记录，如果是“更新”，如果没有“插入”

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