I was reading Expert Oracle Database 10g Administration by Sam Alapati, and encountered the following paragraph:
In discussing the Oracle database architecture, you can make a distinction between the physical and logical structures. You donít take all the data from the tables of an Oracle database and just put
it on disk somewhere on the operating system storage system. Oracle uses a sophisticated logical view of the "internal database structures" that helps in storing and managing data properly in the
physical data files.
What are these "internal oracle database structures" around which there is a logical wrapper. Is the author referring to the data files? Please clarify.