19c 和11g临时表空间使用率

19c临时表空间使用率（实际正在使用的）

select total_extents,free_extents,used_extents,added_extents from v$sort_segment;

    select case when exists(select * from v$tempseg_usage) then round((select sum(a.blocks)*8192/sum(b.bytes) from v$tempseg_usage a,dba_temp_files b)*100,0) else 0 end "PTC" from dual;

11g临时表空间使用率(这个使用率是temp高水位)

select c.tablespace_name,
       to_char(c.bytes / 1024 / 1024 / 1024, '99,999.999') total_gb,
       to_char((c.bytes - d.bytes_used) / 1024 / 1024 / 1024, '99,999.999') free_gb,
       to_char(d.bytes_used / 1024 / 1024 / 1024, '99,999.999') use_gb,
       to_char(d.bytes_used * 100 / c.bytes, '99.99') || '%' use
  from (select tablespace_name, sum(bytes) bytes
          from dba_temp_files
         GROUP by tablespace_name) c,
       (select tablespace_name, sum(bytes_cached) bytes_used
          from v$temp_extent_pool
         GROUP by tablespace_name) d
 where c.tablespace_name = d.tablespace_name;

11g增强视图查看使用率（这个使用率是实际正在使用的）

select tablespace_name,tablespace_size/1024/1024/1024,allocated_space/1024/1024/1024,free_space/1024/1024/1024 from dba_temp_free_space;