SQL>
SQL> create table t as select * from all_objects;
Table created.
SQL>
SQL> create index t_idx on
2 t(owner,object_type,object_name)
3 compress 2;
Index created.
SQL>
SQL> exec show_space('T_IDX',user,'INDEX')
Free Blocks
0
Total Blocks
56
Total Bytes
458752
Unused Blocks
4
Unused Bytes
32768
Last Used Ext FileId
1
Last Used Ext BlockId
42753
Last Used Block
4
PL/SQL procedure successfully completed.
SQL>
SQL> drop index t_idx;
Index dropped.
SQL>
SQL> drop table t;
Table dropped.
SQL>
SQL> --