RDB$DATABASE stores basic information about the database. It contains only one record.
||Database comment text
||A number that steps up by one each time a table
or view is added to the database
||The security class defined in RDB$SECURITY_CLASSES
in order to apply access control limits common to the entire database
||The name of the default character set for the database set in
the DEFAULT CHARACTER SET clause when the database is created. NULL for
character set NONE.