Table: USER_FREE_SPACE
Free extents in tablespaces accessible to the user
| Column Name | Description |
|---|---|
| BLOCKS | Size of the extent in ORACLE blocks |
| BLOCK_ID | Starting block number of the extent |
| BYTES | Size of the extent in bytes |
| FILE_ID | ID number of the file containing the extent |
| RELATIVE_FNO | Relative number of the file containing the extent |
| TABLESPACE_NAME | Name of the tablespace containing the extent |