1. Database Reference
  2. Dynamic Performance Views
  3. Dynamic Performance (V$) Views: V$IM_COLUMN_LEVEL to V$RULE_SET_AGGREGATE_STATS
  4. V$MEMORY_DYNAMIC_COMPONENTS

8.74 V$MEMORY_DYNAMIC_COMPONENTS

V$MEMORY_DYNAMIC_COMPONENTS displays information about the dynamic SGA components.

This view summarizes information based on all completed SGA resize operations since instance startup. All sizes are expressed in bytes.

Column Datatype Description

COMPONENT

VARCHAR2(64)

Component name

CURRENT_SIZE

NUMBER

Current size of the component

MIN_SIZE

NUMBER

Minimum size of the component since instance startup

MAX_SIZE

NUMBER

Maximum size of the component since instance startup

USER_SPECIFIED_SIZE

NUMBER

Value of the user parameter for the component

OPER_COUNT

NUMBER

Number of operations since instance startup

LAST_OPER_TYPE

VARCHAR2(13)

Last completed operation for the component:

  • STATIC

  • INITIALIZING

  • DISABLED

  • GROW

  • SHRINK

  • SHRINK_CANCEL

LAST_OPER_MODE

VARCHAR2(9)

Mode of the last completed operation:

  • MANUAL

  • DEFERRED

  • IMMEDIATE

LAST_OPER_TIME

DATE

Start time of the last completed operation

GRANULE_SIZE

NUMBER

Granularity of the GROW or SHRINK operation

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data