Question

我正在处理一个存储过程，该存储过程用于根据用户输入的条件过滤网格。在可能的标准中，他们可能会选择查看在某个开始日期和结束日期之间完成的交易。我将4个输入参数传递给proc - @ClientKey，请求信息的客户端@FilterBy（这是ASP.NET中下拉列表中的选定值，实际上告诉proc用户是否选择按名称进行过滤，地址，日期等。在这种情况下，日期的@FilterBy值是5），@ Value1，在这个例子中是开始日期，@ Value2，在这个例子中是结束日期。

在伪代码中，我想要的是：

SELECT ABunchOfColumns FROM SomeJoinedTables 某些标准 AND CASE @FilterBy 5那么d.TransactionTime＆gt; = CAST（@ Value1 AS Date）和d.TransactionTime＆lt; = CAST（@ Value2 AS Date）

以下是完整查询。我希望那个比我更精通SQL的人可以理清我想做的事情并提供解决方案。

提前致谢！

@ClientKey  int,
@FilterBy   int,
@Value1 varchar(150),
@Value2 varchar(150)

AS BEGIN

SELECT d.pKey AS PaymentKey, d.CaseKey, d.InvoiceID, d.AuthorizationCode, d.TransactionID, d.PaymentType, d.Amount, d.ExpirationDate, d.CardType, d.BankName, d.AccountNumber, 
    d.AccountType, c.Name, c.Address1, c.City, c.State, c.Zip, cs.PAmount, cs.TranCode, cs.TranDate, cs.[Desc] AS PaymentDescription, cc.[Desc] AS ChargeCodeDescription,
    d.TransactionTime, a.Name AS AssociationName, d.PaymentType, c.ClientPaymentID
FROM DebtorPayment d INNER JOIN Cases c
    ON d.CaseKey = c.pKey
    AND d.ClientKey = c.ClientKey
INNER JOIN CaseSumm cs
    ON d.CaseKey = cs.CaseKey
    AND d.pKey = cs.Batch
    AND d.ClientKey = cs.ClientKey
INNER JOIN ChargeCodes cc
    ON c.ClientKey = cc.ClientKey
    AND cs.TranCode = cc.RefNum
INNER JOIN AssnCtrl a
    ON c.AssnKey = a.pKey
WHERE c.ClientKey = @ClientKey
AND d.AmountAllocated > 0
AND d.TransactionStatus = 'Successful' 
AND c.Address1 LIKE CASE
    WHEN @FilterBy = 1 THEN '%' + @Value1 + '%'
    ELSE c.Address1
    END
AND d.Amount = CASE
    WHEN @FilterBy = 2 THEN @Value1
    ELSE d.Amount
    END  
AND a.pKey = CASE
    WHEN @FilterBy = 3 THEN CAST(@Value1 AS INT)
    ELSE a.pKey
    END
AND c.ClientPaymentID = CASE
    WHEN @FilterBy = 4 THEN @Value1
    ELSE c.ClientPaymentID
    END 
<ProblemArea>
AND CASE @FilterBy
        WHEN 5 THEN d.TransactionTime >= CAST(@Value1 AS Date) AND d.TransactionTime <= CAST(@Value2 AS Date)
    END
</ProblemArea>
AND c.LName LIKE CASE
    WHEN @FilterBy = 6 THEN '%' + @Value1 + '%'
    ELSE c.LName
    END
ORDER BY d.TransactionTime DESC

END

Answer 1

CASE 
    WHEN @FilterBy = 5 AND d.TransactionTime >= CAST(@Value1 AS DATE) 
    AND d.TransactionTime <= CAST(@Value2 AS DATE) THEN 1 
    ELSE 0 
END = 1

Answer 2

你的意思是如下吗？您可能会发现此link也很有用。没有测试过代码，只提出想法 - 编写这样的代码对我来说总是感觉“错误” - 也许有人可以提供更好的。

CREATE PROC MyProc

    @ClientKey  int,
    @FilterBy   int,
    @Value1 varchar(150),
    @Value2 varchar(150)
--  NB WITH RECOMPILE, see link (above)
WITH RECOMPILE AS
BEGIN
    SET NOCOUNT ON;

    SELECT *
    FROM ...
    WHERE 
        Col1    =   CASE 
                        WHEN @FilterBy = 1 THEN @Value1
                        ELSE Col1
                    END
    AND
        1       =   CASE
                        WHEN @FilterBy = 2 AND Col2 > @Value1 AND Col3 < @Value2        THEN 1
                        WHEN @FilterBy = 2 AND NOT (Col2 > @Value1 AND Col3 < @Value2)  THEN 0
                        ELSE 1
                    END 
END

具有条件＆＃34; AND＆＃34;的Transact-SQL存储过程逻辑

2 个答案: