oracle table space occupancy linux system

1, we first check the occupancy of table space, use sql as follows:

the SELECT  Upper (f.tablespace_name) "table space", 
       d.tot_grootte_mb "table space (M)", 
       d.tot_grootte_mb - f.total_bytes "used space (M)", 
       the TO_CHAR ( round ((d.tot_grootte_mb - f.total_bytes) / d.tot_grootte_mb *  100 ,
                      2 ),
                ' 990.99 ' ) "use than", 
       f.total_bytes "free space (M)", 
       f.max_bytes "maximum block (M)" 
  from ( SELECT tablespace_name,
               round(sum(bytes) / (1024 * 1024), 2) total_bytes,
               round(max(bytes) / (1024 * 1024), 2) max_bytes
          from sys.dba_free_space
         group by tablespace_name) f,
       (select dd.tablespace_name,
               round(sum(dd.bytes) / (1024 * 1024), 2) tot_grootte_mb
          from sys.dba_data_files dd
         group by dd.tablespace_name) d
 where d.tablespace_name = f.tablespace_name
 order by 4 desc;

2, the table space query data path using sql follows:

select t.* from sys.dba_data_files t where t.tablespace_name ='PACS31'；