M
- managed targets
Entities that can be monitored and managed within the Oracle Management Framework. These entities include databases, application servers, web servers, applications, and Oracle agents such as the Oracle Net listener and Connection Manager. See also Oracle Connection Manager.
- mean time to recovery (MTTR)
The average amount of time it takes to recover the database and make it available after an instance failure occurs.
- media failure
A failure in which one or more database files is damaged. Media failure applies to control files, redo log files, tempfiles and datafiles.
- metadata
Data that describes data. Metadata includes table definitions, stored PL/SQL program code, and privileges, but not the information found in tables. ...
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