Question

我有一个查询，其中我得到这样的结果，我正在下面的结果集。但我需要得到如上一篇所示

SELECT DISTINCT                     LEFT(DATENAME(m, CONVERT(DATE, CONVERT(VARCHAR(10), fcp.DateKey))), 3) + ' ' + CONVERT(VARCHAR(4), year(convert(DATE, CONVERT(VARCHAR(10), fcp.DateKey)))) DatePeriod
        ,OM.HedisOCMKey AS OutComeMeasureKey
        ,(
            SELECT NumeratorSegmentCnt
            FROM Fact.HedisOCMSegments omse
            WHERE omse.SegmentLabel = 'Good'
                AND omse.HedisOCMKey = OM.HedisOCMKey
            ) AS Good
        ,0 AS Fair
        ,0 AS Poor
        ,0 AS 'NotCategorised'
                FROM fact.HEDISReport fcp WITH (NOLOCK)
    INNER JOIN fact.HedisOCM OM WITH (NOLOCK)
        ON OM.HEDISReportKey = fcp.HEDISReportKey
    INNER JOIN dim.ConditionMetric dc WITH (NOLOCK)
        ON dc.ConditionMetricID = OM.MetricID
    WHERE fcp.DateKey <= @i_ReportingPeriod

我的出局就像这样：

ConditionPrevalenceKey  PopulationConditionCnt  PrevalencePercent   DatePeriod  OutComeMeasureKey   Good    Fair    Poor    NotCategorised  NotTested   GoodPercentage  FairPercentage  PoorPercentage  NotCategorisedPercentage    NotTestedPercentage GoodRange   FairRange   PoorRange   NotCategorisedRange NotTestedRange  DerivedGoodValue    DerivedFairValue    DerivedPoorValue    DerivedNotCategorised   DerivedNotTested    ConditionMetricName


18018   252 0.53    Dec-12  34957   35  0   0   0   217 13.89   0   0   0   86.11   Good    Fair    Poor    NC  NoData  >= 1    0   0   NotCategorized  NotTested   Chlamydia  Screen

然后我怎么能得到这样的结果集：

year    Legend  percent count   Derived value field


Dec-12  Good    13.89   35  >= 1

Dec-12  Fair    0   0   0

Dec-12  Poor    0   0   0

Dec-12  NC  0   0   0

建议我???

Answer 1

我会使用UNPIVOT。这里有关于stackoverflow的UNPIVOT上有很多线程。这是一个example。这里的another非常相似。

以下是使用UNPIVOT解决您的具体问题的一般开始：

SELECT  [DatePeriod] ,
        [OutComeMeasureKey] ,
        [Legend] ,
        [Percent]
FROM    (SELECT DISTINCT
                LEFT(DATENAME(m, CONVERT(DATE, CONVERT(VARCHAR(10), fcp.DateKey))), 3) + ' ' + CONVERT(VARCHAR(4), YEAR(CONVERT(DATE, CONVERT(VARCHAR(10), fcp.DateKey)))) DatePeriod ,
                OM.HedisOCMKey AS OutComeMeasureKey ,
                (SELECT NumeratorSegmentCnt
                 FROM   Fact.HedisOCMSegments omse
                 WHERE  omse.SegmentLabel = 'Good' AND omse.HedisOCMKey = OM.HedisOCMKey
                ) AS Good ,
                0 AS Fair ,
                0 AS Poor ,
                0 AS 'NotCategorised'
         FROM   fact.HEDISReport fcp WITH (NOLOCK)
                INNER JOIN fact.HedisOCM OM WITH (NOLOCK) ON OM.HEDISReportKey = fcp.HEDISReportKey
                INNER JOIN dim.ConditionMetric dc WITH (NOLOCK) ON dc.ConditionMetricID = OM.MetricID
         WHERE  fcp.DateKey <= @i_ReportingPeriod
        ) AS sourcetable UNPIVOT ( [Percent] FOR Legend IN (Good, Fair, Poor, [NotCategorised]) ) AS unpvt

如何使用Pivot或Unpivot获得此结果

1 个答案: