A local database directory file exists in each path
(or "drive" for Windows operating
systems) in which a database has been defined. This directory contains
one entry for each database accessible from that location.
Each entry contains:
- The database name provided with the CREATE DATABASE command
- The database alias name (which is the same as the database name,
if an alias name is not specified)
- A comment describing the database, as provided with the CREATE
DATABASE command
- The name of the root directory for the database
- Other system information.