[英]SQL Server 2012 Pivot Table
我需要创建一个在数据透视表中显示结果的查询。
我有一个表定期更新客户端构建状态更改
我们有8个阶段来构建
这是我的查询
SELECT
s.ProjectStage, su.DateStageChanged, p.FK_ID As ID,
s.LongDesc AS BuildType, su.FK_StageID
FROM
[dbo].[tbl_StageUpdates] AS su
LEFT JOIN
[dbo].[tbl_Stage] AS s ON su.FK_StageID = s.id
LEFT JOIN
tbl_Projects AS p ON su.FK_ProjectID = p.PK_ProjectID
WHERE
s.LongDesc = 'New Build'
GROUP BY
p.FK_ID, s.ProjectStage, su.DateStageChanged, s.LongDesc, su.FK_StageID
ORDER BY
su.FK_StageID ASC
ID是客户端ID,我希望查询显示如下信息:
有可能吗?
任何有关这方面的帮助将不胜感激
干杯
如果您只有8个阶段,则可以使用CASE ... WHEN和GROUP BY来存档您的预期输出。 我认为它比使用PIVOT功能更具可读性。 此外,它是T-SQL并且更容易迁移到其他DBMS。
SELECT
ID,
BuildType,
MAX(CASE FK_StageID WHEN 115 THEN DateStageChanged ELSE NULL END) AS [Land Purchased],
MAX(CASE FK_StageID WHEN 116 THEN DateStageChanged ELSE NULL END) AS [Foundations],
MAX(CASE FK_StageID WHEN 117 THEN DateStageChanged ELSE NULL END) AS [Timber Kit Erected / Wall Plate Level],
MAX(CASE FK_StageID WHEN 118 THEN DateStageChanged ELSE NULL END) AS [Wind & Water Tight],
MAX(CASE FK_StageID WHEN 119 THEN DateStageChanged ELSE NULL END) AS [1st Fix & Plastering],
MAX(CASE FK_StageID WHEN 120 THEN DateStageChanged ELSE NULL END) AS [Final Fit Out],
MAX(CASE FK_StageID WHEN 121 THEN DateStageChanged ELSE NULL END) AS [Completed],
MAX(CASE FK_StageID WHEN 122 THEN DateStageChanged ELSE NULL END) AS [Redeemed]
FROM
(
-- original query
SELECT
s.ProjectStage, su.DateStageChanged, p.FK_ID As ID,
s.LongDesc AS BuildType, su.FK_StageID
FROM
[dbo].[tbl_StageUpdates] AS su
LEFT JOIN
[dbo].[tbl_Stage] AS s ON su.FK_StageID = s.id
LEFT JOIN
tbl_Projects AS p ON su.FK_ProjectID = p.PK_ProjectID
WHERE
s.LongDesc = 'New Build'
GROUP BY
p.FK_ID, s.ProjectStage, su.DateStageChanged, s.LongDesc, su.FK_StageID
-- original query
) Data
GROUP BY
ID, BuildType
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