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Oracle Tutorials - What Is a Dynamic Performance View
(Continued from previous topic...)
What Is a Dynamic Performance View?
Oracle contains a set of underlying views that are maintained by the database server
and accessible to the database administrator user SYS. These views are called dynamic
performance views because they are continuously updated while a database is open
and in use, and their contents relate primarily to performance.
Although these views appear to be regular database tables, they are not. These views
provide data on internal disk structures and memory structures. You can select from
these views, but you can never update or alter them.
(Continued on next topic...)
- What Is Oracle?
- What Is an Oracle Database?
- What Is an Oracle Instance?
- What Is a Parameter File?
- What Is a Server Parameter File?
- What Is an Initialization Parameter File?
- What Is System Global Area (SGA)?
- What Is Program Global Area (PGA)?
- What Is a User Account?
- What Is the Relation of a User Account and a Schema?
- What Is a User Role?
- What Is a Database Schema?
- What Is a Database Table?
- What Is a Table Index?
- What Is an Oracle Tablespace?
- What Is an Oracle Data File?
- What Is a Static Data Dictionary?
- What Is a Dynamic Performance View?
- What Is a Recycle Bin?
- What Is SQL*Plus?
- What Is Transport Network Substrate (TNS)?
- What Is Open Database Communication (ODBC)?