E File Types and Names Used by Oracle

The following is a list of file types and names used by Oracle.


Database files such as sid.DBS.CONTROL.DBF, sid.DBS.DATABASE1.DBF, or sid.DBS.LOG1.DBF contain the entire Oracle database including data dictionary, user tables, log files, and so on.


Parameter file used when instance is started.


Environment file containing user environment. Always to be run before start of an instance or an application: /DO sid.P.ORAENV.


Temporary ENTER-PROCEDURE file for starting background processes (using $ORAC1020.DEMO.P.ENTER).


Temporary files of background processes containing run-time information. After a task is successfully completed, these files are removed. These files can help diagnosis.


Run-time listing documenting the start of a background process. When process finishes orderly listings are removed, except the SDF-P variable BJGOUT is set to KEEP in sid.P.ORAENV for diagnosis purposes. xxxx corresponds with the identifier of Oracle background jobs.

Oracle Net Services LOG files

All errors encountered in Oracle network products are appended to a log file. The default directory path on BS2000/OSD is network.log. For more information about Oracle Net Services log files, refer to Oracle Database Net Services Administrator's Guide .


This file lists the log of significant events and errors of the database. If this file exits, the same file is used, else a new file is created. This file is valuable for diagnosis, and should not be removed.


To be removed after successful installation.


To be removed after successful installation.


To be removed after successful installation, for example, L.sid.CATALOG.LOG.


This file is used to trace errors when openUTM is used with Oracle. This file is created only when an error occurs. NULL can be replaced by a db_name when specified in the open string.


This trace file is created for one of the following reasons: