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Author: Brijesh Gogia

I’m an experienced Cloud/Oracle Applications/DBA Architect with more than 15 years of full-time DBA/Architect experience. I have gained wide knowledge on Oracle and Non-Oracle software stack running on-prem and on Cloud and have worked on several big projects for multi-national companies. I enjoy working with leading-edge technology and have a passion for Cloud architecture, automation, database performance, and stability. Thankfully my work allows me time for researching new technologies (and to write about them).
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Key Reasons for Database Performance Issues

Some of the key reasons which attributes to database performance issues are mentioned below:

Below post is based on Oracle Documentation

1.Bad connection management

The application connects and disconnects for each database interaction. This problem is common with stateless middleware in application servers. It has over two orders of magnitude impact on performance, and is totally unscalable.

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Oracle EBS R12 – Concurrent request log and output files display with delay

We faced one issue in our Oracle EBS R12  where users reported that Concurrent request log and output files are not displaying instantly but are showing up after few seconds of delay.

Same situation was faced when trying to open any manager log files. Since log/out were opening up fine, albeit with some delay, so RRA/FNDWR setup was evidently fine.

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REP-0189: Cannot write to Reports Server cache

We had seen one issue in EBS R12 in which simple report porgamrs like “Active users”  were throwing erorrs like below:

 Enter Password:
 REP-0118: Unable to create a temporary file.

REP-0189: Cannot write to Reports Server cache
 REP-0069: Internal error
 REP-57054: In-process job terminated:Terminated with error:
 REP-189: Cannot write to Reports Server cache
 this is the error in Log file
 APPLLCSP Environment Variable set to :

Current NLS_LANG and NLS_NUMERIC_CHARACTERS Environment Variables are :
 American_America.UTF8


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Move SQL PROFILE to other database

A)  CREATE STAGING TABLE

First Create the staging table which will hold sql profiles to be moved over.

SQL> exec DBMS_SQLTUNE.CREATE_STGTAB_SQLPROF (table_name=>’SQL_STG_TAB’,schema_name=>’SYS’);

(This will create a table SQL_STG_TAB, which will be able to hold the required sql profiles, the structure of this table is exactly same as that of DBA_SQL_PROFILES table)

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