Modern Oracle DBA

Encountering configuration issues post-cutover. However, here's a straightforward solution to resolve these errors efficiently. Follow these steps to modify the config.xml file and get your system back on track. Solution:  Go to config.xml locatation and take backup for the "config.xml" file cd $FMW_HOME/user_projects/domains/EBS_domain/config/ ls -ltr config.xml cp config.xml config.xml_bkp Search the config.xml file in " connection-filter-rule " Change the value " deny "  to " allow " [applmgr@vtebstest config]$diff config.xml_bkp config.xml 33d32 <     <OTM >vtebstest.appl.com * * allow </connection-filter-rule> 35d33 <     <connection-filter-rule>0.0.0.0/0 * * deny </connection-filter-rule> [applmgr@vtebstest config]$ Save the config.xml file and bounce the adadminsrvctl.sh Login weblogic page and retest the issue

 Login to the DB Server and execute below commands Copy SQL> select count(*) from WRH$_ACTIVE_SESSION_HISTORY; COUNT(*) ------------------ 0           Copy SQL> alter system set "_ash_enable"=false; System altered.   Copy SQL> alter system set "_ash_enable"=true; System altered.   Login in to OEM and Retest the issue Reference:- OEM Top Activity Graphs Are Not Displayed (Doc ID 2229483.1)

Here I have collected the List of good Oracle Apps DBA interview Questions/Answers. How Many Oracle homes there in R12.2? Oracle 10.1.2 home and Oracle fusion middleware home oracle application is running on top of the FMW home. What is EBR? Edition based redefinition is R12.2 online patching new fecture. EBR has been introduced in 11g R12 database EBR is allows multiple version of plsql objects views and synonyms in single schema. EBR is enabled via database users and all EBS users including custon schemas. How Can We Improve ADOP Patch Performance in Oracle E-Business Suite? We need to tune below DB parameters  Set job_queue_processes = # of CPU’s Set parallel_max_servers = 2 X CPU’s(small server) 1 X CPU’s  While running adadmin What is batchsize parameter in EBS? It means number of rows to commit at one time to the Database.  What is multi ligual tables in ebs? EBS applications allow users to create their programs in a variety of languages.   Ex:- ...

EBS applicatations User access the Oracle Application login page from the below URL http://<URL_HOSTNAME>:<PORT> Ex:- http://vtebs.oracle.com:8000/OA_HTML_AppsLoginin From this URL will be redirected to the central login page, In the http.conf file, locate DocumentRoot. The DocumentRoot is the base location for where the first access the apache file is stored. Locatation :  $FMW_HOME/webtier/instances/EBS_WEB_OHS/config/OHS/EBS_web/ httpd.conf Ex:- DocumentRoot : "/u01/applmgr/DEV/fs1/inst/apps/dev_ebsvis/portal" Under this DocumentRoot folder, index.html will redirect to the application login page. http://<URL_HOSTNAME>:<PORT>/OA_HTML/AppsLogin The application identified the context in OA_HTML and redirected the connection to the OACORE server. The application connects to the database using the APPLSYSPUB user and displays the login page. The password was obtained from the DBC file. The password for APPLSYSPUB is available in two lo...

This step requires a minimum version of R12.AD.C.Delta.7 and R12.TXK.C.Delta.7 or later. TXK 7's functionality has been simplified and largely automated with the introduction of a new utility that handles previously manual procedures. 1. Shutdown the all application tier services except the Admin Server. Primary node, run the below command cd $ADMIN_SCRIPTS_HOME /adstpall.sh -skipNM -skipAdmin Secondary nodes, stop the application services cd $ADMIN_SCRIPTS_HOME /adstpall.sh 2. To change the Oracle WebLogic Server Administration User password, execute the below command on the primary node's run file system. Source the environment on the run file system. perl $FND_TOP/patch/115/bin/txkUpdateEBSDomain.pl -action=updateAdminPassword 3. Start all services on all nodes, using the command: cd $ ADMIN_SCRIPTS_HOME /adstrtal.sh Reference: How To Change or Reset The WebLogic Administration Password In 12.2 E-Business Suite (Doc ID 1385751.1 )

How to check EBS CPU level Copy Select max (CODELEVEL) "CPU" from AD_TRACKABLE_ENTITIES where ABBREVIATION in ('ebscpu'); How to check AD and TXK Code level Copy Select abbreviation,codelevel from ad_trackable_entities where abbreviation in( 'ad','txk','cc_pf','atg_pf','scp_pf' ) order by abbreviation; How to check Patch applied status Copy Select bug_number,creation_date from ad_bugs where bug_number= How to check Installed language in EBS Copy SELECT Language_code, NLS_language, Installed_flag FROM fnd_languages WHERE installed_flag IN ('I', 'B'); I- Installed Language B- Base Language Is System crash/Unable to continue the Adop session  Execute below querys to find which session is causing theissue Copy select adop_session_id from ad_adop_sessions where status='R'; Copy select ADOP_SESSION_ID,PREPARE_...

Adop Apply Phase Frequently Using Commands: - How to apply the patch adop phase=prepare adop phase=apply patches=<Patch_Number> adop phase=finalize adop phase=cutover adop phase=cleanup adop phase=fs_clone How to apply Multiple patches  adop phase=apply patches=<Patch1>,<Patch2>,<Patch3> How to apply Merge patch adop phase=apply patches=<Patch1>,<Patch2>,<Patch3>  merge=yes How to apply Patch Run File System/Hot Patch Mode adop phase=apply patches=<Patch_Number>   hotpatch=yes How to apply the patch downtimemode adop phase=apply patches=<Patch_Number>  apply_mode=downtime How to reapply the patch adop phase=apply patches=<Patch_Number>  options=forceapply How to restart the patch from where patch failed adop phase=apply patches=<Patch_Number>  restart=yes How to restart the failed patch from begining adop phase=apply patches=<Patch_Number>  abandon=yes How to ignore the failed patc...