SQL Pivot示例 Yang

SQL Pivot示例 ,记录一下！

--建表
CREATE TABLE TEMPTB(
  BUSINESSNAME NVARCHAR(20),
  FEEDATE NVARCHAR(10),
  TOTALFEE DECIMAL(18,2)
)
--填充数据
INSERT INTO dbo.TEMPTB (BUSINESSNAME, FEEDATE, TOTALFEE)
VALUES ('基础业务', '20121101', 1123.5)
GO
INSERT INTO dbo.TEMPTB (BUSINESSNAME, FEEDATE, TOTALFEE)
VALUES ('基础通信', '20121102', 2040)
GO
INSERT INTO dbo.TEMPTB (BUSINESSNAME, FEEDATE, TOTALFEE)
VALUES ('基础业务', '20121102', 1043)
GO
INSERT INTO dbo.TEMPTB (BUSINESSNAME, FEEDATE, TOTALFEE)
VALUES ('基础业务', '20121103', 10)
GO
INSERT INTO dbo.TEMPTB (BUSINESSNAME, FEEDATE, TOTALFEE)
VALUES ('集团业务', '20121104', 1012.9)
GO
INSERT INTO dbo.TEMPTB (BUSINESSNAME, FEEDATE, TOTALFEE)
VALUES ('终端业务', '20121105', 101.4)
GO
INSERT INTO dbo.TEMPTB (BUSINESSNAME, FEEDATE, TOTALFEE)
VALUES ('自有业务', '20121106', 10.5)
GO

-- PIVOT 示例
DECLARE
    @sql NVARCHAR(2000)
SELECT @sql=ISNULL(@sql+',','')+'['+FEEDATE+']'  FROM TEMPTB GROUP BY FEEDATE    
--注意,pivot透视中的in后面的条件中,只能是以字符开始,如：汉字、字母;
--上面的FEEDATE即使设置为varchar类型，但如果其内容为20121101,1,2等数字,放在下面的IN当中仍然会出错
--所以，在数字外面包括了一层[FEEDATE]
SET @sql='SELECT * FROM TEMPTB PIVOT(MAX(TOTALFEE) FOR FEEDATE IN('+@sql+'))A'
EXEC(@sql)