IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[foo_DBExportGroupChannels]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
DROP FUNCTION [dbo].[foo_DBExportGroupChannels]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[foo_DBExportGroupChannels]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
BEGIN
execute dbo.sp_executesql @statement = N'CREATE FUNCTION [dbo].[foo_DBExportGroupChannels]
(
	@TestObjectId int
)
RETURNS xml
AS
BEGIN
	RETURN isnull((SELECT    [ChId]
							,[sid]
							,[SensorId]
							,[Setting]	
	from
	(SELECT [ChannelId] as ''ChId''
						  ,[SerialNumber] as ''sid''
						  ,v.[SensorId]
						  ,[Setting]	
					FROM [dbo].[TestObjectChannelSettings] ch
					inner join [dbo].[v_SensorSerialNumber] v on v.SensorId =  ch.SensorId 
					where ch.TestObjectId = @TestObjectId) ChannelSetting
					for xml auto, BINARY BASE64, root (''ChannelSettings'')), ''<ChannelSettings />'')
END

' 
END

GO