Tablspace used size in mb

Question

hii everybody,
i have script to check tablespace usage and it is working fine but the problem is just used space is showing in '% ' i want used space in 'MB'.can anybody help me,how i get used space in MB? the script and its output is shown below,your help is highly appreciated.
thanks.
SQL>
SQL> select tablespace_name,
2 round(sum(allocated_space) / 1024 / 1024, 2) "Size (MB)",
3 round(sum(free_space) / 1024 / 1024, 2) "Free (MB)",
4 round((sum(free_space)/sum(allocated_space)) * 100, 2) "% Free",
5 round(((sum(allocated_space) - sum(free_space))/sum(allocated_space)) * 100, 2) "%Used"
6 from (select tablespace_name, bytes allocated_space, 0 free_space
7 from dba_data_files
8 union all
9 select tablespace_name, 0 allocated_space, bytes free_space
10 from dba_free_space)
11 group by tablespace_name
12 Order by 4
13
SQL> /
TABLESPACE_NAME Size (MB) Free (MB) % Free %Used
SYSTEM 700 1.81 .26 99.74
SYSAUX 700 40.25 5.75 94.25
USERS 7.5 1.5 20 80
EXAMPLE 100 21.56 21.56 78.44
UNDOTBS1 75 51.63 68.83 31.17
Edited by: 938946 on Jan 14, 2013 12:39 AM
Edited by: 938946 on Jan 14, 2013 12:40 AM

Answer 1

add this column:
Round(( SUM(allocated_space) - SUM(free_space) ) / 1024 / 1024, 2)see..
SELECT tablespace_name,
       Round(SUM(allocated_space) / 1024 / 1024, 2)
       "Size (MB)",
       Round(SUM(free_space) / 1024 / 1024, 2)
       "Free (MB)",
       Round(( SUM(free_space) / SUM(allocated_space) ) * 100, 2)
       "% Free",
       Round(( ( SUM(allocated_space) - SUM(free_space) ) / SUM(allocated_space)
             100, 2)
       "%Used",
       Round(( SUM(allocated_space) - SUM(free_space) ) / 1024 / 1024, 2)
       "Used (MB)"
FROM   (SELECT tablespace_name,
               bytes allocated_space,
               0     free_space
        FROM   dba_data_files
        UNION ALL
        SELECT tablespace_name,
               0     allocated_space,
               bytes free_space
        FROM   dba_free_space)
GROUP  BY tablespace_name
ORDER  BY 4;