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REP-0004: Warning: Unable to open user preference file

May 3rd, 2026, posted in Oracle EBS Application
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Metalink id:
===========
R12: Request Logs Contain the Message “REP-0004: Warning: Unable to open user preference file”
[ID 1120529.1]

Symptoms:
============
All concurrent requests that run REPORTS are printing the following warning in the request log.

REP-0004: Warning: Unable to open user preference file.

Cause:
==========

This message occurs when the concurrent process attempts to open the Oracle Reports executable and your local preference file cannot be found or opened. This is just a warning, so the request will continue to run even if this occurs.

Solution:
===========

To resolve the warning, copy the prefs.ora file from your Reports Builder $ORACLE_HOME/tools/admin/ directory into the Applications $HOME directory.

Example :

Copy of the file prefs.ora in the directory /u01/prod/apps/tech_st/10.1.2/tools/admin to the directory  /home/appprod/.

appdev@ctssd $ pwd
/u01/erpapp/10.1.2/tools/admin
appdev@ctssd $ cp prefs.ora /export/home/apptest

Note: Bounce apache service.
After doing above steps issue resolved.

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REP-0004: Warning: Unable to open user preference file while running reports.

May 2nd, 2026, posted in Oracle EBS Application
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Error :


Enter Password:
REP-0004: Warning: Unable to open user preference file.
REP-0069: Internal error
REP-57054: In-process job terminated:Finished successfully but output is voided
Cause :

Your local (customized) Oracle Reports preference file could not be opened.
This is just a warning, so the product will continue to run even if this occurs.
The possible causes of this error include the following:

Case 1: The file was not found under the specified name in the specified location.
Case 2: You lacked the necessary privileges to open the file.
Case 3: A system error made it impossible to open the file.

Action :

You can take the following actions to rectify this error:

Case 1: Make sure the file prefs.ora is located in your “home” directory.
Case 2: Make sure that you have the privileges necessary to access the file. If you don’t, change your privileges accordingly.
Case 3: Consult your operating system documentation or contact your system administrator.

The preferences file referred to above is:

Windows
ORACLE_HOME\CAUPREFS.ORA (user preferences)
ORACLE_HOME\CAGPREFS.ORA (global preferences)
UNIX
your_home_directory/prefs.ora (user preferences)
$ORACLE_HOME/tools/admin/prefs.ora (global preferences)

Simple Way :

Check whether u have prefs.ora file in your application user’s home
eg: prefs file should be in /home/applmg/prefs.ora
if not please copy prefs.ora file from  $ORACLE_HOME/tools/admin/prefs.ora  to /home/applmg/prefs.ora location.
Run your concurrent request/program.

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RMAN SCRIPT TO MAKE BACKUP WITH DATES

April 12th, 2026, posted in Oracle
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*******************************************************************************************
************* Set Date, Log, Folders with Variable Names *****************************
*******************************************************************************************

#!/bin/bash
DD=(date +%d%m%Y)
BACKUP_BASE_DIR=”/backup_immam/RMAN_DB_BACKUP”
BACKUP_DIR=”$BACKUP_BASE_DIR/DB_$DD”
mkdir -p $BACKUP_DIR
date > $BACKUP_DIR/RmanStarttime.txt
LOG_FILE=”$BACKUP_DIR/RMAN_DB_BACKUP_$(date +%d%m%Y).log”

*******************************************************************************************
**************************** Starting Log File ******************************************
*******************************************************************************************

echo ==== started on date ==== >> $LOG_FILE”

*******************************************************************************************
**************************** Starting RMAN BACKUP ***********************************
*******************************************************************************************

rman target / msglog $LOG_FILE << EOF
RUN {
ALLOCATE CHANNEL ch1 DEVICE TYPE disk FORMAT ‘$BACKUP_DIR/backup_%u_%s_%p_%T’;
BACKUP AS COMPRESSED BACKUPSET DATABASE PLUS ARCHIVELOG;
RELEASE CHANNEL ch1;
BACKUP AS COPY CURRENT CONTROLFILE FORMAT ‘$BACKUP_DIR/controlfile_%u_%s_%p_%T’;
}
exit;
EOF

*******************************************************************************************
**************************** Ending RMAN BACKUP ***********************************
*******************************************************************************************

echo ==== Online Backup Ends on date ==== >> $LOG_FILE
date > $BACKUP_DIR/RmanStoptime.txt

*******************************************************************************************
**************************** Ending Log File ********************************************
*******************************************************************************************

exit

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Checking Tablespace Utilization In Oracle

April 4th, 2026, posted in Oracle Queries
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These queries provide insights into tablespace utilization, helping you identify potential storage issues :

Query 1: Check the tablespace utilization :

SELECT TABLESPACE_NAME, USED_SPACE,TABLESPACE_SIZE,USED_PERCENT FROM DBA_TABLESPACE_USAGE_METRICS ORDER BY USED_PERCENT DESC;

Query 2: Check the detail of tablespaces used, free and percentage :

Select f.tablespace_name , to_char(t.total_space,'9999,9999') "TOTAL(MB)" , to_char((t.total_space-f.free_space),'9999,9999')"USED(MB)", to_char(f.free_space,'999,999') "FREE(MB)", to_char((round(((t.total_space-f.free_space)/t.total_space)*100)),'999')||'%' PER_USED, to_char((round((f.free_space/t.total_space)*100)),'999')||'%'PER_FREE from (select tablespace_name , round (sum(blocks * ( select value/1024 from v$parameter where name='db_block_size')/1024)) free_space from dba_free_space group by tablespace_name)f , (select tablespace_name , round(sum(bytes/1048576)) total_space from dba_data_files group by tablespace_name ) t where f.tablespace_name=t.tablespace_name ;

Query 3: Give space utilization of datafiles present in tablespaces :

select tablespace_name , file_name, autoextensible , bytes/1024/1024 "USED SPACE(MB)", maxbytes/1024/1024 " MAX SIZE(MB) " from dba_data_files order by tablespace_name,file_name ;
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RMAN-06059: Expected Archived Log Not Found, Loss Of Archived Log Compromises Recoverability

February 22nd, 2026, posted in Oracle Queries
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Error :

RMAN> BACKUP AS COMPRESSED BACKUPSET DATABASE PLUS ARCHIVELOG;
Starting backup at 18-NOV-21
current log archived
using channel ORA_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup plus archivelog command at 11/18/2021 17:29:50
RMAN-06059: expected archived log not found, loss of archived log compromises recoverability
ORA-19625: error identifying file /u02/immam/db/apps_st/data/archive/1_500_1195296918.dbf
ORA-27037: unable to obtain file status
SVR4 Error: 2: No such file or directory
Additional information: 3

Solution :

Once in a while, there will be an archive log that is expired but not deleted.
If that is the case, there is an easy answer :

RMAN> crosscheck archivelog all;
RMAN> list expired archivelog all;
RMAN> delete expired archivelog all;

Now, run the backup again.. It will work !!

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