ALTER PROCEDURE [dbo].[sp_SensorsDigitalInDelete]
		@SensorId						INT				= NULL,
		@SerialNumber					NVARCHAR (50)	= NULL,
		@errorNumber					int				output,
		@errorMessage					nvarchar(250)	output
AS
BEGIN
	set @errorNumber = 0 
	set @errorMessage = ''

	IF( @SensorId IS NULL)
	BEGIN
		IF NULLIF(@SerialNumber,'') IS NULL
		BEGIN
		    DELETE A FROM [dbo].[SensorChangeHistory] AS A INNER JOIN [dbo].[Sensors] AS B ON A.SensorId=B.id INNER JOIN [dbo].SensorsType AS C ON C.TypeId=B.SensorType WHERE C.SensorType='DigitalIn'
			DELETE A FROM [dbo].[SensorsDigitalIn] AS A INNER JOIN [dbo].[Sensors] AS B ON A.SensorId=B.id INNER JOIN [dbo].SensorsType AS C ON C.TypeId=B.SensorType WHERE C.SensorType='DigitalIn'
			DELETE A FROM [dbo].[Sensors] AS A INNER JOIN [dbo].[SensorsType] AS B on A.SensorType=B.TypeId WHERE B.SensorType='DigitalIn'
		END
		ELSE
		BEGIN
			SELECT @SensorId = A.[Id] FROM [dbo].[Sensors] AS A INNER JOIN [dbo].[SensorsType] AS B ON A.SensorType=B.TypeId WHERE B.SensorType='DigitalIn' AND A.SerialNumber=@SerialNumber
			DELETE A FROM [dbo].[SensorChangeHistory] AS A INNER JOIN [dbo].[Sensors] AS B ON A.SensorId=B.id INNER JOIN [dbo].SensorsType AS C ON C.TypeId=B.SensorType WHERE C.SensorType='DigitalIn' AND A.SensorId=@SensorId
			DELETE A FROM [dbo].[SensorsDigitalIn] AS A INNER JOIN [dbo].[Sensors] AS B ON A.SensorId=B.id INNER JOIN [dbo].SensorsType AS C ON C.TypeId=B.SensorType WHERE C.SensorType='DigitalIn' AND A.SensorId=@SensorId
			DELETE A FROM [dbo].[Sensors] AS A INNER JOIN [dbo].[SensorsType] AS B on A.SensorType=B.TypeId WHERE B.SensorType='DigitalIn' AND A.id=@SensorId
		END
	END
	ELSE
	BEGIN
	    DELETE A FROM [dbo].[SensorChangeHistory] AS A INNER JOIN [dbo].[Sensors] AS B ON A.SensorId=B.id INNER JOIN [dbo].SensorsType AS C ON C.TypeId=B.SensorType WHERE C.SensorType='DigitalIn' AND A.SensorId=@SensorId
		DELETE A FROM [dbo].[SensorsDigitalIn] AS A INNER JOIN [dbo].[Sensors] AS B ON A.SensorId=B.id INNER JOIN [dbo].SensorsType AS C ON C.TypeId=B.SensorType WHERE C.SensorType='DigitalIn' AND A.SensorId=@SensorId
		DELETE A FROM [dbo].[Sensors] AS A INNER JOIN [dbo].[SensorsType] AS B on A.SensorType=B.TypeId WHERE B.SensorType='DigitalIn' AND A.id=@SensorId
	END
		IF(@@error != 0)
		BEGIN
			SET @errorNumber = error_number()
			SET @errorMessage = error_message()
		END
END