एक एसक्यूएल केस स्टेटमेंट को एक एसक्यूएल क्वेरी में एम्बेड करना जो एक्सएमएल के लिए उपयोग कर रहा है

मुझे लगता है कि सही जगह पर मूल केस अभिव्यक्ति डालने से काम करना चाहिए। इसे आजमाएं:

PROCEDURE [dbo].[CreateLandingPurchaseOrderDetails]

-- Add the parameters for the stored procedure here
@startDate DATE, @endDate DATE

AS
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    -- Insert statements for procedure here
    SELECT (
       SELECT
            Contacts.ContactId AS '@ContactId',
            LandingHeaders.VesselOwner AS '@Owner',
            FORMAT(SUM(LandingDetails.Quantity * LandingDetails.UnitPrice), 'N2') AS '@Owed',
            SocietyMemberships.WeeklyDeductionRate AS '@WeeklyDeductionRate',
            SocietyMemberships.FromMinimumReturn AS '@FromMinimumReturn',
            Deductions.DeductionRate AS '@DeductionRate',

          CASE 
             WHEN SUM(LandingDetails.Quantity * LandingDetails.UnitPrice) - (SUM(LandingDetails.Quantity * LandingDetails.UnitPrice) * DeductionRate + WeeklyDeductionRate) > FromMinimumReturn 
             THEN SUM(LandingDetails.Quantity * LandingDetails.UnitPrice) * DeductionRate + WeeklyDeductionRate
             ELSE SUM(LandingDetails.Quantity * LandingDetails.UnitPrice) * DeductionRate 
          END AS '@TotalDeductions',

            (SELECT DISTINCT
                ld1.ProductId AS '@ProductId',
                FORMAT(AVG(ld1.UnitPrice), 'N2') AS '@Cost',
                FORMAT(SUM(ld1.Quantity), 'N2') AS '@Quantity'

            FROM LandingDetails ld1
            INNER JOIN dbo.LandingHeaders lh1
                ON ld1.LandingId = lh1.LandingId
            WHERE Posted = 0
            AND lh1.VesselOwner = LandingHeaders.VesselOwner
            GROUP BY ld1.ProductId
            FOR XML PATH ('Products'), TYPE)

        FROM dbo.LandingDetails
        INNER JOIN dbo.LandingHeaders
            ON LandingDetails.LandingId = LandingHeaders.LandingId
        INNER JOIN dbo.Vessels
            ON LandingHeaders.VesselId = Vessels.VesselId
        INNER JOIN dbo.Contacts
            ON Vessels.OwnerId = Contacts.ContactId
        INNER JOIN dbo.SocietyMemberships
            ON Contacts.SocietyId = SocietyMemberships.SocietyId
        INNER JOIN dbo.Deductions
            ON Vessels.DeductionId = Deductions.DeductionId
        WHERE LandingHeaders.Posted = 0
        AND LandingDate1 BETWEEN @startDate AND @endDate
        GROUP BY    ContactId,
                    LandingHeaders.VesselOwner,
                    SocietyMemberships.WeeklyDeductionRate,
                    SocietyMemberships.FromMinimumReturn,
                    Deductions.DeductionRate
        ORDER BY ContactId

        FOR XML PATH ('Owner'), TYPE)

    FOR XML PATH ('PurchaseOrders'), TYPE

END

क्वेरी में शायद सुधार किया जा सकता है लेकिन तालिका परिभाषाओं और कुछ नमूना डेटा के बिना इसका परीक्षण करना थोड़ा मुश्किल है।

इसे देखें SQL Fiddle थोड़े संशोधित संस्करण के लिए जो समान परिणाम देना चाहिए।