Question

我正在尝试获取一个包含以下3列的表

地理区域（FSA）
销售（GRS_CAD）
总计百分比（总计百分比），即第2列中的值除以第2列中所有值的总和。

我有2个约束，因为我将在Tableau仪表板中使用查询：

无法声明变量
无法创建临时表

对此我还很陌生，我尝试了嵌套查询。我得到的结果几乎是“看起来”正确的，但是我相信我的第三列的分母会针对每一行而变化，而事实并非如此。另外，当我只运行分母的子查询时，我得到了正确的数字，因此我猜想它可能与查询的执行顺序有关。

你能帮忙吗？

SELECT  
SubTable.FSA 
, SubTable.GRS_CAD 
, SubTable.GRS_CAD/

        (
        SELECT sum(RPTOP.totaladjrevenue_onehr)

        FROM  csn_order.dbo.tblorderproduct OP (nolock)
        JOIN csn_report.dbo.rptorderproduct RPTOP (nolock) on OP.opid = RPTOP.opid
        JOIN csn_order.dbo.tblplstate PLSTATE (nolock) on OP.oprestid = PLSTATE.StID

        WHERE RPTOP.OrderSourceStoreID=446 
        AND RPTOP.Cancelled=0 
        AND RPTOP.OrCompleteDate > '2018-01-01' 
        AND PLSTATE.StID>=55 
        AND PLSTATE.StID<=67
        ) as 'Percent of total GRS'

FROM

    (SELECT 
         FSA = LEFT(A.oprepostalcode,3)
         , sum(B.totaladjrevenue_onehr) GRS_CAD
    FROM csn_order.dbo.tblorderproduct A (nolock)
        JOIN csn_report.dbo.rptorderproduct B (nolock) on A.opid = B.opid
        JOIN csn_order.dbo.tblplstate C (nolock) on A.oprestid = C.StID
    WHERE B.Ordersourcestoreid = 446
        AND B.cancelled = 0
        AND B.OrCompleteDate > '2018-01-01'
        AND C.StID >= 55 
        AND C.StID<=67
    GROUP BY LEFT(A.oprepostalcode,3))
 as SubTable

Answer 1

您始终可以使用此技术来转换像您一样的查询。这将始终创建efficient SQL statement，因为每个行都不会执行每个选择语句。

将您的select语句移至 from 子句。

为您的select语句和所需的列命名。

SELECT SubTable.FSA,
       SubTable.GRS_CAD,
       SubTable.GRS_CAD / PercentTotalOFGRS.TempName
FROM
(
    SELECT FSA = LEFT(A.oprepostalcode, 3),
           SUM(B.totaladjrevenue_onehr) GRS_CAD
    FROM csn_order.dbo.tblorderproduct A (NOLOCK)
        JOIN csn_report.dbo.rptorderproduct B (NOLOCK)
            ON A.opid = B.opid
        JOIN csn_order.dbo.tblplstate C (NOLOCK)
            ON A.oprestid = C.StID
    WHERE B.Ordersourcestoreid = 446
          AND B.cancelled = 0
          AND B.OrCompleteDate > '2018-01-01'
          AND C.StID >= 55
          AND C.StID <= 67
    GROUP BY LEFT(A.oprepostalcode, 3)
) AS SubTable ,
(
    SELECT SUM(RPTOP.totaladjrevenue_onehr) AS TempName
    FROM csn_order.dbo.tblorderproduct OP (NOLOCK)
        JOIN csn_report.dbo.rptorderproduct RPTOP (NOLOCK)
            ON OP.opid = RPTOP.opid
        JOIN csn_order.dbo.tblplstate PLSTATE (NOLOCK)
            ON OP.oprestid = PLSTATE.StID
    WHERE RPTOP.OrderSourceStoreID = 446
          AND RPTOP.Cancelled = 0
          AND RPTOP.OrCompleteDate > '2018-01-01'
          AND PLSTATE.StID >= 55
          AND PLSTATE.StID <= 67
) AS PercentTotalOFGRS;

SQL子查询以显示总计百分比

1 个答案: