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Storage mapping views

The mapping information that is captured is presented in Oracle's dynamic performance views. Brief descriptions of these views are provided below. For more detailed information, refer to your Oracle documentation.

View

Description

V$MAP_LIBRARY 

Contains a list of all the mapping libraries that have been dynamically loaded by the external process. 

V$MAP_FILE 

Contains a list of all the file mapping structures in the shared memory of the instance. 

V$MAP_FILE_EXTENT 

Contains a list of all the file extent mapping structures in the shared memory of the instance. 

V$MAP_ELEMENT 

Contains a list of all the element mapping structures in the SGA of the instance. 

V$MAP_EXT_ELEMENT 

Contains supplementary information for all element mapping structures. 

V$MAP_SUBELEMENT 

Contains a list of all subelement mapping structures in the shared memory of the instance. 

V$MAP_COMP_LIST 

Describes the component list associated with the element name. 

V$MAP_FILE_IO_STACK 

Contains the hierarchical arrangement of storage containers for the file. This information is displayed as a series of rows. Each row represents a level in the hierarchy.