如何計算一個 Oracle Table 所佔用的磁碟空間

SQL 語法 :

select owner,table_name,num_rows,
blocks * (select value from v$parameter where name = ‘db_block_size’) / 1024 / 1024 “size mb”,
empty_blocks,last_analyzed
from dba_tables
where table_name=’資料表’