Extents comprising all segments in the system managed undo tablespaces
Columns
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OWNER
Owner of the segment associated with the extent
SEGMENT_NAME
Name of the segment associated with the extent
TABLESPACE_NAME
Name of the tablespace containing the extent
EXTENT_ID
Extent number in the segment
FILE_ID
Name of the file containing the extent
BLOCK_ID
Starting block number of the extent
BYTES
Size of the extent in bytes
BLOCKS
Size of the extent in ORACLE blocks
RELATIVE_FNO
Relative number of the file containing the segment header
COMMIT_JTIME
Commit Time of the undo in the extent expressed as Julian date
COMMIT_WTIME
Commit Time of the undo in the extent expressed as wall clock time
STATUS
Transaction Status of the undo in the extent