SQL Server 穿插表查詢 case。本站提示廣大學習愛好者：（SQL Server 穿插表查詢 case）文章只能為提供參考，不一定能成為您想要的結果。以下是SQL Server 穿插表查詢 case正文
代碼以下所示：
表landundertake構造以下所示：
表appraiser構造以下所示：
access代碼：
TRANSFORM First(Landundertake.valuerId) AS valuerId之First
SELECT Appraiser.quarterId, Landundertake.landCode
FROM Landundertake INNER JOIN Appraiser ON (Landundertake .valuerId = Appraiser.valuerID) AND (Landundertake .quarterId = Appraiser.quarterId)
GROUP BY Appraiser.quarterId, Landundertake .landCode
PIVOT Landundertake .valuerGrade;
SQL server代碼：
select dbo.appraiser.quarterID,dbo.landUndertake.landcode,case dbo.landUndertake.appraiserGrade when 'appraiserID1' then dbo.landundertake.appraiserID else null END as appraiserID,case dbo.landUndertake.appraiserGrade when 'appraiserID2' then dbo.landundertake.appraiserID else null END as appraiserID1
from dbo.LandUndertake inner join
dbo.Appraiser ON dbo.LandUndertake.quarterID=dbo.appraiser.quarterID and dbo.landundertake.appraiserID=DBO.Appraiser.appraiserID
Group by dbo.appraiser.quarterID,dbo.landUndertake.landcode,dbo.landundertake.appraiserGrade,dbo.landundertake.appraiserID
穿插表查詢成果以下所示：
