IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[sp_DASDelete]') AND type in (N'P', N'PC'))
DROP PROCEDURE [dbo].[sp_DASDelete]
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].[sp_DASDelete]') AND type in (N'P', N'PC'))
BEGIN
EXEC dbo.sp_executesql @statement = N'CREATE PROCEDURE [dbo].[sp_DASDelete] AS' 
END
GO
ALTER PROCEDURE [dbo].[sp_DASDelete]
	 @SerialNumber		nvarchar(50) = null
		,@errorNumber			int				output
		,@errorMessage			nvarchar(250)	output 
AS
BEGIN
	SET NOCOUNT ON;
	set @errorNumber = 0 
	set @errorMessage = space(0)

	if(@SerialNumber is null)
	begin 
		set @errorMessage	= 1560
		set @errorNumber	= 'An invalid parameter or option was specified for procedure'
	end
	else
	begin
		begin try
			/* will delete all records when all paramerers are null*/
			begin transaction t_DeleteDAS

			declare @DASId int
			set @DASId = dbo.foo_IdGetDAS(@SerialNumber) 

			update [dbo].[TestObjectSensors] set DASId = 0		where DASId = @DASId

			delete from [dbo].[TestSetupDASSettings]			where DASId = @DASId 
			delete from [dbo].[TestObjectHardware]				where DASId = @DASId
			delete from [dbo].[TestSetupHardware]				where DASId = @DASId
			delete from [dbo].[LevelTriggers]					where DASId = @DASId		
			delete from [dbo].[DASChannels]						where DASId = @DASId 
			delete from [dbo].[DAS]								where DASId = @DASId 
		
			commit  transaction [t_DeleteDAS]
		end try
		begin catch
			set @errorMessage	= error_message()
			set @errorNumber	= error_number()
			rollback transaction [t_DeleteDAS]
		end catch
	end
END































GO