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Oracle® Database Reference
12c Release 1 (12.1)

E17615-24
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V$TEMP_EXTENT_POOL

V$TEMP_EXTENT_POOL displays the state of temporary space cached and used for the instance. Note that loading of the temporary space cache is lazy and that instances can be dormant.

Column Datatype NULL Description
TABLESPACE_NAME VARCHAR2(30) NOT NULL Name of the tablespace
FILE_ID NUMBER   Absolute file number
EXTENTS_CACHED NUMBER   Number of extents that have been cached
EXTENTS_USED NUMBER   Number of extents that are actually being used
BLOCKS_CACHED NUMBER   Number of blocks that are cached
BLOCKS_USED NUMBER   Number of blocks that are used
BYTES_CACHED NUMBER   Number of bytes that are cached
BYTES_USED NUMBER   Number of bytes that are used
RELATIVE_FNO NUMBER   Relative file number
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