Listing 2: Analyze Table T 
SQL> analyze table t compute statistics;
Table analyzed.


SQL> select avg_space, blocks, empty_blocks, num_freelist_blocks
  2    from user_tables
  3   where table_name = 'T';


  AVG_SPACE   BLOCKS   EMPTY_BLOCKS    NUM_FREELIST_BLOCKS
  ---------   ------   ------------    -------------------
       2241       35             28                      2