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 | Description | 
|---|---|---|
| TABLESPACE_NAME | VARCHAR2(30) | 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 |