DBA_LMT_FREE_SPACE describes the free extents in all locally managed tablespaces in the database.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
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  | 
 Identifier number of the tablespace containing the extent  | 
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| 
 
  | 
 
  | 
 File identifier number of the file containing the extent  | 
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| 
 
  | 
 
  | 
 Starting block number of the extent  | 
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  | 
 
  | 
 Size of the extent (in Oracle blocks)  |