|Oracle® Database Concepts 11g Release 2 (11.2) Part Number
E16508-04 The means by which data is retrieved from a database.
For example, a query using an index and a query using a full
table scan use different access paths. Automatic Database
Diagnostic Monitor. An Oracle Database infrastructure that
enables a database to diagnose its own performance and determine
how identified problems could be resolved. Automatic Diagnostic
Repository. A a file-based hierarchical data store for managing
diagnostic information, including network tracing and logging. A
file that provides a chronological log of database messages and
errors. The alert log is stored in the ADR. archived redo log
file A member of the online redo log that has been archived by
Oracle Database. The archived redo log files can be applied to a
database backup in media recovery. A mode of the database that
enables the archiving of the online redo log. Automatic Database
Diagnostic Monitor (ADDM) Automatic Diagnostic Repository (ADR)
automatic undo man