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???????????????????????????????NOLOGGING

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SQL> select property_name??property_value from database_properties     
  2  where property_name like 'DEFAULT%';                             
                                                                      
PROPERTY_NAME                  PROPERTY_VALUE                         
------------------------------ --------------------------------       
DEFAULT_TEMP_TABLESPACE        TEMP                                   
DEFAULT_PERMANENT_TABLESPACE   USERS                                  
DEFAULT_TBS_TYPE               SMALLFILE                              

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SQL> select s.name tbsname??t.name??(t.bytes/1024/1024) bytes??status                    
  2  from v$tablespace s??v$tempfile t                                                 
  3  where s.ts# = t.ts#;                                                             
                                                                                      
TBSNAME    NAME                                               BYTES   STATUS          
---------- --------------------------------------------- ----------   -------         
TEMP       /u01/app/oracle/oradata/orcl/temp01.dbf               30   ONLINE          
                                                                                      
SQL> select tablespace_name??file_name??bytes/1024/1024 Size_MB from dba_temp_files;    
                                                                                      
TABLESPACE FILE_NAME                                        SIZE_MB                   
---------- --------------------------------------------- ----------                   
TEMP       /u01/app/oracle/oradata/orcl/temp01.dbf               30                   
                                                                                      
SQL> select tablespace_name??logging??allocation_type                                   
  2  from dba_tablespaces where tablespace_name='TEMP';                               
                                                                                      
TABLESPACE LOGGING   ALLOCATIO                                                        
---------- --------- ---------                                                        
TEMP       NOLOGGING UNIFORM