how to check the existing data in database with the inserting data

Create	Procedure	YourStoredProcedureName
@ID		Bigint		
-- and add another parameter here
As
	Begin Try
		Update	YourTableName
			Set	All parameters without ID must be set

			Where	ID	= @ID	

		IF	@@ROWCOUNT	=	0
		Begin
			Insert	YourTableName(All parameters without ID)
				Values(All parameters without ID)
		End
		Select	0
		Return	

	End	Try
	Begin	Catch
		Select	Error_Number() * -1
		Return	
	End	Catch

IF NOT EXISTS ( SELECT COL1 FROM TABLE WHERE PK_COL1=@COL1)
BEGIN
   -- INSERT QUERY
END

Insert into Table(All parameters with ID)
                Values(All parameters with ID) where Id<>CurrentVal Which you want to insert as Id