DataSource :: closeResourceDatabase - Closing the resource database
The resource database can be opened as an extension to the dictionary. In some cases, dictionary and resource data base may differ.
Implementation details
DataSource  :: closeResourceDatabase (  )
The function will close the resource database handle, when being opened. Closing the resource database will not affect the other handles opened for the data source, except those opened for the resource data base, which are closed as well.

