10.41 V$SGASTAT

V$SGASTAT displays detailed information on the system global area (SGA).

Column Datatype Description

POOL

VARCHAR2(14)

Designates the pool in which the memory in NAME resides:

  • in-memory pool - Memory is allocated from the In-Memory pool

  • java pool - Memory is allocated from the Java pool

  • large pool - Memory is allocated from the large pool

  • numa pool - Memory is allocated from the NUMA pool

  • shared pool - Memory is allocated from the shared pool

  • streams pool - Memory is allocated from the Streams pool

NAME

VARCHAR2(26)

SGA component name

BYTES

NUMBER

Memory size (in bytes)

ALLOCATION_COUNTFoot 1

NUMBER

If NAME is an allocation comment, this column displays the number of memory allocations for NAME.

Otherwise, this column is null.

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

Footnote 1 This column is available starting with Oracle AI Database 26ai, Release Update 23.26.1.