0

我有一个到目前为止运行良好的数据透视查询，但是有一个要求，我需要在 unpivot 查询中指定一个条件，该条件将省略与条件不匹配的行和列值并显示为空。但是，我需要将这些值显示为最终结果的一部分。

我试图进行联合以包含缺失值，但不会获得所需的输出。我在下面粘贴我的数据透视查询以及显示的结果和需要显示的结果。请帮忙。

当前查询

SELECT 
    OrderID, AccessName, Address1, Postcode
    , Gen_Instr_1 AS "General Instructions for Install"
    ,Supplier_Name_1 AS "Supplier Name"
    ,Install_Job_Name_1 AS "Install Jobs"
    ,Install_Job_Status_1 AS "Install Job Status"

    ,Install_Job_Name_2 AS "EPR Jobs"
    ,Install_Job_Status_2 AS "EPR Job Status"
FROM
(
    SELECT
    OrderID, AccessName, Address1, Postcode
    , col+'_'+CAST(rn AS VARCHAR(10)) col, 
    val
    FROM
    (
        SELECT o.OrderID, 
            CAST(js.JobStatusID AS VARCHAR(50)) JobStatusId
            , CAST(p.Name AS VARCHAR(50)) Install_Job_Name 
            , o.AccessName, o.Address1, o.Postcode
            , CAST(oj.GeneralInstructions AS VARCHAR(50)) Gen_Instr  
            , CAST(s.CompanyName AS VARCHAR(50)) Supplier_Name 
            , oj.SupplierID 
            , CAST(js.Name AS VARCHAR(50)) Install_Job_Status  
            , ROW_NUMBER() OVER(PARTITION BY o.OrderID ORDER BY o.OrderID) rn
        FROM 
            NEPCCO.Orders o
            INNER JOIN NEPCCO.Clients c ON o.ClientID = c.ClientID
            INNER JOIN NEPCCO.OrderJobs oj ON o.OrderID = oj.OrderID
            INNER JOIN NEPCCO.Suppliers s ON oj.SupplierID = s.SupplierID
            INNER JOIN NEPCCO.Products p ON oj.ProductID = p.ProductID
            INNER JOIN NEPCCO.OrderStatus os ON o.OrderStatusID = os.OrderStatusID
            INNER JOIN NEPCCO.JobStatus js ON oj.JobStatusID = js.JobStatusID
        WHERE
            o.OrderID IN (6981,6860,6982,6983) AND
            (p.ProductID IN (35,36,37,38,38,40,41,42,43) OR  p.ProductID IN (33,34))
            AND s.CompanyName = 'Northern Gas Heating Ltd'
    ) d
    UNPIVOT
    (
        val
        FOR col IN (JobStatusId, Gen_Instr, Supplier_Name,Install_Job_Name, Install_Job_Status)
    ) un
) s
PIVOT
(
    MAX(val)
    FOR col IN (JobStatusID_1, Gen_Instr_1, Supplier_Name_1, Install_Job_Name_1, Install_Job_Status_1,
                JobStatusID_2, Gen_Instr_2, 
                Install_Job_Name_2, Install_Job_Status_2
                )
) piv

当前结果 - 查看最后两列中的空值

OrderID AccessName Address1 Postcode SupplierName Install Jobs Install Job Status EPR Jobs EPR Job Status
    6981    Mrs Cespedes    73 Mill Lane    WV11 1DQ    Northern Gas Heating Ltd    GC1 - 28    Complete    NULL    NULL
    6983    Ms A Mirza  122 Pendleford Avenue   WV6 9EN     Northern Gas Heating Ltd    GC1 - 28    Complete    NULL    NULL

现在，如果我如下运行内部 unpivot 查询，我会得到以下记录/行

内部反透视查询

SELECT o.OrderID, 
            CAST(js.JobStatusID AS VARCHAR(50)) JobStatusId
            , CAST(p.Name AS VARCHAR(50)) Install_Job_Name
            , o.AccessName, o.Address1, o.Postcode
            , CAST(oj.GeneralInstructions AS VARCHAR(50)) Gen_Instr
            , CAST(s.CompanyName AS VARCHAR(50)) Supplier_Name
            , oj.SupplierID 
            , CAST(js.Name AS VARCHAR(50)) Install_Job_Status  
            , ROW_NUMBER() OVER(PARTITION BY o.OrderID ORDER BY o.OrderID) rn1
        FROM 
            NEPCCO.Orders o
            INNER JOIN NEPCCO.Clients c ON o.ClientID = c.ClientID
            INNER JOIN NEPCCO.OrderJobs oj ON o.OrderID = oj.OrderID
            INNER JOIN NEPCCO.Suppliers s ON oj.SupplierID = s.SupplierID
            INNER JOIN NEPCCO.Products p ON oj.ProductID = p.ProductID
            INNER JOIN NEPCCO.OrderStatus os ON o.OrderStatusID = os.OrderStatusID
            INNER JOIN NEPCCO.JobStatus js ON oj.JobStatusID = js.JobStatusID
        WHERE
            o.OrderID IN (6981,6860,6982,6983) AND
            (p.ProductID IN (35,36,37,38,38,40,41,42,43) OR  p.ProductID IN (33,34))

产生以下结果

 OrderID AccessName Address1 Postcode SupplierName Install Jobs Install Job Status EPR Jobs EPR Job Status

6860    6   AW EPR  01625555555 1 Gorsey Road   SK9 5DU     OGP 14  Cancelled     1
6981    4   AW EPR  Mrs Cespedes    73 Mill Lane    WV11 1DQ    Ian Barnhurst   1   Complete       1
6981    4   GC1 - 28    Mrs Cespedes    73 Mill Lane    WV11 1DQ    Northern Gas Heating Ltd    403 Complete      2
6982    4   AW EPR Installer    Mr N Singh  115 Oxbarn Avenue   WV3 7HQ     Northern Gas    414 Complete      1
6983    4   AW EPR Installer    Ms A Mirza  122 Pendleford Avenue   WV6 9EN Northern Gas    414 Complete      1
6983    4   GC1 - 28    Ms A Mirza  122 Pendleford Avenue   WV6 9EN     Northern Gas Heating Ltd    403 Complete     2

问题

现在，如果您仔细查看上面的结果集，其中包含订单 id's 6860, 6982，它没有包含在上述结果中，因为它没有将供应商名称作为Northern Gas Heating Ltd，此外，在第一次查询时显示的结果，省略来自订单 id 的值6981, 6983，也是因为它们有不同的供应商。

此外，如果您注意到，在第一个查询中显示记录时，不包括行号为 2 的值。

我尽力了，但失败了。@bluefeet，这里非常需要您的专业知识。任何澄清请询问。

4

0 回答 0