SQL Server 2008的透视查询

Question

我有数据在SQL Server 2008中的表看起来像这样：

我要转动它看起来像这样：

基本上我想对ReadTime和Coater进行分组，然后在DataType列上旋转。有人可以帮我用T-SQL来做到这一点吗？

Answer 1

也许这将帮助：

测试数据：

DECLARE @tbl TABLE 
(
    ReadTime DATETIME, 
    Coater VARCHAR(100), 
    Value FLOAT, 
    DateType VARCHAR(100) 
) 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11A-COATER',1,'FCDAOpside473') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11A-COATER',1,'FCDABackside473') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11A-COATER',0,'FCDAOpside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11A-COATER',0.9,'FCDABackside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11B-COATER',1,'FCDAOpside473') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11B-COATER',2,'FCDABackside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11B-COATER',2.9,'FCDAOpside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:01','PBG11B-COATER',0,'FCDABackside473') 

INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11A-COATER',1,'FCDAOpside473') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11A-COATER',1,'FCDABackside473') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11A-COATER',0,'FCDAOpside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11A-COATER',0.9,'FCDABackside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11B-COATER',1,'FCDAOpside473') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11B-COATER',2,'FCDABackside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11B-COATER',2.9,'FCDAOpside472') 
INSERT INTO @tbl VALUES('2012-10-01 13:28:41','PBG11B-COATER',0,'FCDABackside473') 

查询：

SELECT 
    * 
FROM 
(
    SELECT 
     ReadTime, 
     Coater, 
     DateType, 
     Value 
    FROM @tbl AS tbl 
) AS SourceTable 
PIVOT 
    (
     MIN(Value) 
     FOR DateType IN 
        (
         [FCDAOpside472], 
         [FCDAOpside473], 
         [FCDABackside472], 
         [FCDABackside473] 
        ) 
    )AS PivotTable 
ORDER BY 
    ReadTime