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我有一个Entity-Value集合的表,并且希望透视结果。 以下是我正在寻找的效果,除非您看到使用公用表表达式的SELECT语句不能正确工作。 我的问题是:我在正确的轨道上,还是有一些简单的枢轴命令?SQL Server 2005数据透视表问题
USE TempDB
Declare @Person TABLE(
PersonID Int Identity(101,1))
INSERT INTO @Person DEFAULT VALUES
INSERT INTO @Person DEFAULT VALUES
INSERT INTO @Person DEFAULT VALUES
INSERT INTO @Person DEFAULT VALUES
DECLARE @Attribute TABLE(
AttributeID Int Identity(10,1) PRIMARY KEY,
AttributeName Varchar(MAX))
INSERT INTO @Attribute(AttributeName) VALUES('Firstname')
INSERT INTO @Attribute(AttributeName) VALUES('Lastname')
DECLARE @Pat TABLE(-- A Person's Attributes
PatID Int Identity,
PersonID Int,
AttributeID Int,
PatValue Varchar(MAX)
)
INSERT INTO @Pat(PersonID,AttributeID,PatValue) VALUES(101,10,'John')
INSERT INTO @Pat(PersonID,AttributeID,PatValue) VALUES(102,10,'Paul')
INSERT INTO @Pat(PersonID,AttributeID,PatValue) VALUES(103,10,'George')
INSERT INTO @Pat(PersonID,AttributeID,PatValue) VALUES(104,10,'Ringo')
INSERT INTO @Pat(PersonID,AttributeID,PatValue) VALUES(101,11,'Lennon')
INSERT INTO @Pat(PersonID,AttributeID,PatValue) VALUES(102,11,'McCartney')
INSERT INTO @Pat(PersonID,AttributeID,PatValue) VALUES(103,11,'Harrison')
SELECT Pat.PersonID,AttributeName,PatValue
FROM @Pat Pat
INNER JOIN @Person Person
ON Pat.PersonID = Person.PersonID
INNER JOIN @Attribute Attribute
ON Pat.AttributeID=Attribute.AttributeID
--
;WITH CTE1 AS(
SELECT PersonID,PatValue AS FirstName
FROM @Pat Pat
INNER JOIN @Attribute Attribute
ON Pat.AttributeID=Attribute.AttributeID
WHERE AttributeName='FirstName'
)
,CTE2 AS(
SELECT PersonID,PatValue AS LastName
FROM @Pat Pat
INNER JOIN @Attribute Attribute
ON Pat.AttributeID=Attribute.AttributeID
WHERE AttributeName='LastName'
)
SELECT Pat.PersonID,FirstName,LastName
FROM @Pat Pat
LEFT OUTER JOIN CTE1
ON Pat.PersonID=CTE1.PersonID
LEFT OUTER JOIN CTE2
ON Pat.PersonID=CTE2.PersonID
ORDER BY PersonID
我只想要一个4人名单,他们的名字和姓氏。
+1实际测试代码重现问题 – 2009-09-10 21:25:42