text: ALTER TABLESPACE tbs_01 
      BEGIN BACKUP; 
  ALTER TABLESPACE tbs_01
     END BACKUP;
  
  ALTER TABLESPACE tbs_02 OFFLINE NORMAL;
  
  ALTER TABLESPACE tbs_02
    RENAME DATAFILE 'diskb:tbs_f5.dbf'
    TO              'diska:tbs_f5.dbf';
  
  ALTER TABLESPACE tbs_02 ONLINE;
  
  ALTER TABLESPACE tbs_03
      ADD DATAFILE 'tbs_f04.dbf'
      SIZE 100K
      AUTOEXTEND ON
      NEXT 10K
      MAXSIZE 100K;
  
  ALTER TABLESPACE tbs_03
      DROP DATAFILE 'tbs_f04.dbf';
  
  ALTER TABLESPACE temp_demo ADD TEMPFILE 'temp05.dbf' SIZE 5 AUTOEXTEND ON;
  
  ALTER TABLESPACE temp_demo DROP TEMPFILE 'temp05.dbf';
  
  ALTER TABLESPACE temp_demo SHRINK SPACE;
  
  ALTER TABLESPACE omf_ts1 ADD DATAFILE;
  
  ALTER TABLESPACE tbs_03 NOLOGGING;
  ALTER TABLESPACE undots1
    RETENTION NOGUARANTEE;
  ALTER TABLESPACE undots1
    RETENTION GUARANTEE;
  