Restore spfile from a backupset without dbid

restore spfile from '+fra/rcat/autobackup/2014_10_22/s_861663111.258.861663531';






STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "RCAT" NORESETLOGS  ARCHIVELOG
    MAXLOGFILES 16
    MAXLOGMEMBERS 3
    MAXDATAFILES 100
    MAXINSTANCES 8
    MAXLOGHISTORY 292
LOGFILE
  GROUP 1 '+DATA/rcat/redo01.log'  SIZE 50M BLOCKSIZE 512,
  GROUP 2 '+DATA/rcat/redo02.log'  SIZE 50M BLOCKSIZE 512,
  GROUP 3 '+DATA/rcat/redo03.log'  SIZE 50M BLOCKSIZE 512
DATAFILE
  '+DATA/rcat/system01.dbf',
  '+DATA/rcat/sysaux01.dbf',
  '+DATA/rcat/undotbs01.dbf',
  '+DATA/rcat/users01.dbf',
  '+DATA/rcat01.dbf'
CHARACTER SET AL32UTF8
;