| ERROR | data dictionary indicates missing data file from system tablespace |
| CAUSE | Either the database has been recovered to a point in time in the future of the control file or a datafile from the system tablespace was omitted from the create control file command previously issued. |
| ACTION | For the former problem you need to recover the database from a more recent control file. For the latter problem, simply recreate the control file checking to be sure that you include all the datafiles in the system tablespace. |