select tablespace_name,
       max_gb,
       used_gb,
       round(100 * used_gb / max_gb) pct_used,
        autoextensible
  from (select a.tablespace_name tablespace_name,a.autoextensible,
   round((a.bytes_alloc - nvl(b.bytes_free, 0)) / power(2, 30),  2) used_gb,
   round(a.maxbytes / power(2, 30), 2) max_gb
   from (select f.tablespace_name,
   sum(f.bytes) bytes_alloc,
   sum(decode(f.autoextensible, 'YES',f.maxbytes,  'NO',f.bytes)) maxbytes,
   f.autoextensible
   from dba_data_files f
   group by tablespace_name,autoextensible) a,
   (select f.tablespace_name, sum(f.bytes) bytes_free
                  from dba_free_space f
                   group by tablespace_name) b
                 where a.tablespace_name = b.tablespace_name(+)
                  union all
        select h.tablespace_name tablespace_name,f.autoextensible,
         round(sum(nvl(p.bytes_used, 0)) / power(2, 30), 2) used_gb,
          round(sum(decode(f.autoextensible, 'YES',  f.maxbytes, 'NO', f.bytes)) / power(2, 30), 2) max_gb
           from v$temp_space_header h, v$temp_extent_pool p, dba_temp_files f
            where p.file_id(+) = h.file_id
            and p.tablespace_name(+) = h.tablespace_name
             and f.file_id = h.file_id
             and f.tablespace_name = h.tablespace_name
              group by h.tablespace_name,f.autoextensible)
              order by 4

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select tablespace_name,
       max_gb,
       used_gb,
       round(100 * used_gb / max_gb) pct_used,
       autoextensible
  from (select a.tablespace_name tablespace_name,
               a.autoextensible,
               round((a.bytes_alloc - nvl(b.bytes_free, 0)) / power(2, 30),
                     2) used_gb,
               round(a.maxbytes / power(2, 30), 2) max_gb
          from (select f.tablespace_name,
                       sum(f.bytes) bytes_alloc,
                       sum(decode(f.autoextensible,
                                  'YES',
                                  f.maxbytes,
                                  'NO',
                                  f.bytes)) maxbytes,
                       f.autoextensible
                  from dba_data_files f
                 group by tablespace_name, autoextensible) a,
               (select f.tablespace_name, sum(f.bytes) bytes_free
                  from dba_free_space f
                 group by tablespace_name) b
         where a.tablespace_name = b.tablespace_name(+)
        union all
        select h.tablespace_name tablespace_name,
               f.autoextensible,
               round(sum(nvl(p.bytes_used, 0)) / power(2, 30), 2) used_gb,
               round(sum(decode(f.autoextensible,
                                'YES',
                                f.maxbytes,
                                'NO',
                                f.bytes)) / power(2, 30),
                     2) max_gb
          from v$temp_space_header h, v$temp_extent_pool p, dba_temp_files f
         where p.file_id(+) = h.file_id
           and p.tablespace_name(+) = h.tablespace_name
           and f.file_id = h.file_id
           and f.tablespace_name = h.tablespace_name
         group by h.tablespace_name, f.autoextensible)
 order by 4

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