Question

我第一次尝试使用PIVOT而且我无法让它工作，我似乎无法弄清楚我做错了什么。

我从一个讨厌的选择语句开始。当我得到这些结果时，我可以得到结果，我一直在做的是导出到Excel并使用其中的数据透视功能。当我将数据导入Excel时，我会将其作为我的操作：http://imgur.com/N024rEi

然后我进入下一步并尝试在SQL中完成整个数据透视但无法使其工作。这是我的代码：

SELECT DISTINCT #tmp1.AuthID
, #tmp1.ProviderID
, #tmp1.ProviderName
, #tmp1.LOCID
, #tmp1.LOCDesc
, '$' + CONVERT(VARCHAR,CAST(#tmp1.TotAuthAmt AS MONEY),-1) AS 'ToAuthAmt'
, CONVERT(VARCHAR(10), #tmp1.AuthDate, 101) AS AuthDate, 
CONVERT(VARCHAR(10), #tmp1.AuthExpirationDate, 101) AS AuthExpirationDate
, DATEDIFF(D,#tmp1.AuthDate,#tmp1.AuthExpirationDate) AS AuthLenInDays
,   (CASE WHEN 
        ISNULL(#tmp2.TotPaidAmt, 0) = 0 THEN '$0.00' 
        ELSE '$' + CONVERT(VARCHAR,CAST(#tmp2.TotPaidAmt AS MONEY),-1) 
    END) AS TotPaidAmt,
#tmp1.NbrOfAuthorizations
, #tmp1.UnitsAuthorized
, #tmp1.RatePerUnit
, #tmp1.CAREMODE
,   (CASE WHEN 
        ISNULL(#tmp2.UnitsAdjudicated, 0) = 0 THEN 0 
        ELSE #tmp2.UnitsAdjudicated 
    END) AS AuthUnitsClaimed
, (#tmp1.UnitsAuthorized - 
    (CASE WHEN 
        ISNULL(#tmp2.UnitsAdjudicated, 0) = 0 THEN 0 
        ELSE #tmp2.UnitsAdjudicated 
    END)) AS UnclaimedAuths
,   (CASE WHEN 
        ISNULL(#tmp2.ExpiredAuths, 0) = 0 THEN 0 
        ELSE 1 
    END) AS ExpiredIndicator

FROM (SELECT 
DISTINCT #tmp1.AuthID
, #tmp1.ProviderID
, #tmp1.ProviderName
, #tmp1.LOCID
, #tmp1.LOCDesc
, '$' + CONVERT(VARCHAR,CAST(#tmp1.TotAuthAmt AS MONEY),-1) AS 'ToAuthAmt'
, CONVERT(VARCHAR(10), #tmp1.AuthDate, 101) AS AuthDate
, CONVERT(VARCHAR(10), #tmp1.AuthExpirationDate, 101) AS AuthExpirationDate
, DATEDIFF(D,#tmp1.AuthDate,#tmp1.AuthExpirationDate) AS AuthLenInDays
, (CASE WHEN 
        ISNULL(#tmp2.TotPaidAmt, 0) = 0 THEN '$0.00' 
        ELSE '$' + CONVERT(VARCHAR,CAST(#tmp2.TotPaidAmt AS MONEY),-1) 
    END) AS TotPaidAmt,
#tmp1.UnitsAuthorized
, #tmp1.RatePerUnit
, #tmp1.CAREMODE
,   (CASE WHEN 
        ISNULL(#tmp2.UnitsAdjudicated, 0) = 0 THEN 0 
        ELSE #tmp2.UnitsAdjudicated 
    END) AS AuthUnitsClaimed
, (#tmp1.UnitsAuthorized - 
    (CASE WHEN 
        ISNULL(#tmp2.UnitsAdjudicated, 0) = 0 THEN 0 
        ELSE #tmp2.UnitsAdjudicated 
    END)) AS UnclaimedAuths
,   (CASE WHEN 
        ISNULL(#tmp2.ExpiredAuths, 0) = 0 THEN 0 
        ELSE 1 
    END) AS ExpiredIndicator
FROM #tmp1
LEFT JOIN #tmp2 
ON #tmp2.AuthID = #tmp1.AuthID 

GROUP BY #tmp1.AuthID, #tmp1.ProviderID, #tmp1.LOCID, #tmp1.LOCDesc, #tmp1.UnitsAuthorized, #tmp1.RatePerUnit, #tmp1.FamilyID, #tmp1.ProviderName, #tmp1.TotAuthAmt,
#tmp1.AuthDate, #tmp1.AuthExpirationDate, #tmp2.TotPaidAmt, #tmp1.NbrOfAuthorizations, #tmp1.CAREMODE, #tmp2.UnitsAdjudicated, #tmp2.ExpiredAuths
)#tmp1

PIVOT (
SUM(#tmp1.NbrOfAuthorizations) FOR ProviderName
IN (#tmp1.ProviderName)
) AS #tmp1

我需要在此处更改才能使其正常工作？另外，我如何添加屏幕截图中显示的其他项目？

EDIT1：看起来我在使用PIVOT之后能够获得结果：

PIVOT
(SUM(NbrOfAuthorizations) FOR [ProviderName] IN (element1, element2, etc.)

) PivotResults1

PIVOT
(AVG(AuthLenInDays) FOR [CAREMODE] IN ([element1])

) PivotResults2

但仍有一些问题...... SUM语句实际上似乎并未将特定值的值汇总到一列中。我看到每个单元格都有一个'1'或NULL，如下例所示：http://www.codeproject.com/Tips/500811/Simple-Way-To-Use-Pivot-In-SQL-Query。另一件事是我的AVG专栏，我无法弄清楚如何更改该列的名称，它始终是element1的名称。

Answer 1

我认为不是

IN (#tmp1.ProviderName)

你需要

IN ([element1],[element2],[element3], ... )

元素* n *是＃tmp1.ProviderName内容的所有变体。在最顶部的SELECT部分中，您必须将这些元素列为列

和

你应该给两个表语句赋予不同的别名，你在那里有＃tmp1两次。

首先尝试一个简单的PIVOT测试示例，其中列数少得多。如果你弄清楚它是非常强大。我喜欢excel（pivotcharts！）中的数据透视功能，但数据库可以更快地进行聚合。

无法让PIVOT工作

1 个答案: