/****** Object:  StoredProcedure [dbo].[CallWorkOrder]    Script Date: 11/14/2016 11:46:41 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*
	行转列
	exec [P_RowToColumn] '','Online'
*/
ALTER PROCEDURE [dbo].[P_RowToColumn]    
	@sql VARCHAR(3000),
	@yjcolumn VARCHAR(50), -- 分组字段
	@tjfield VARCHAR(50), -- 统计字段
	@tjType VARCHAR(50)='MAX', -- 统计类型，默认为Sum,支持MAX、MIN等
	@order VARCHAR(100)=''
AS
	DECLARE @str_column NVARCHAR(500),@sql_fields NVARCHAR(3000)
	
	SET @sql_fields = 'WITH MyField AS('+@sql+')
		SELECT @str_column=ISNULL(@str_column+'','','''')+ QUOTENAME('+@yjcolumn+') FROM  MyField GROUP BY '+@yjcolumn
			
	--PRINT @sql_fields
	
	EXEC SP_EXECUTESQL @sql_fields,N'@str_column VARCHAR(500) OUTPUT',@str_column OUTPUT
	
	--print @str_column
	IF ISNULL(@str_column,'') <> ''
	BEGIN
		
		SET @sql_fields=';WITH MyTab AS(
				'+@sql+'
			)
			SELECT * FROM MyTab PIVOT('+@tjType+'('+@tjfield+') FOR '+@yjcolumn+' IN('+@str_column+') ) AS T'
		
		--print @sql_fields
		
		EXEC(@sql_fields)
	END
	ELSE
	EXEC (@sql)