4.265 DBA_DMT_FREE_SPACE

DBA_DMT_FREE_SPACE describes the free extents in all dictionary managed tablespaces in the database.

Column	Datatype	NULL	Description
TABLESPACE_ID	NUMBER	NOT NULL	Identifier number of the tablespace containing the extent
FILE_ID	NUMBER	NOT NULL	File identifier number of the file containing the extent
BLOCK_ID	NUMBER	NOT NULL	Starting block number of the extent
BLOCKS	NUMBER	NOT NULL	Size of the extent (in Oracle blocks)