{表領域、データファイル}一時表領域グループの作成

https://docs.oracle.com/cd/F19136_01/admin/managing-tablespaces.html#GUID-55A6AE10-6875-4B73-9A5C-CB4965AD5AFE

select * from dba_temp_files;
select * from DBA_TABLESPACE_GROUPS;

create temporary tablespace tempb tempfile '/oradata/orcl/tempb01.dbf' 
 size 10M autoextend on maxsize unlimited
 TABLESPACE GROUP tg01;

create temporary tablespace tempc tempfile '/oradata/orcl/tempc01.dbf' 
 size 10M autoextend on maxsize unlimited
 TABLESPACE GROUP tg01;