Very Common Oracle Apps DBA Questions

I collection few regular asked question for Oracle Apps DBA to hire Apps DBA for my team, now publishing for reader’s use. These question are even relevant for Oracle Technical experts / developer also.  I would like to request share your questions if you have any.

Q. What is difference between fresh database and vision database install types ?
Fresh Database –
Database is installed with Apps but with no data
Vision Database – Database installed with Apps with dummy data

Q. Whatis US directory in $AD_TOP or under various product TOP’s .
US directory is default language directory in Oracle Applications. If you have multiple language Installed in your Applications then you will see other language directories beside US, that directory will contain reports, fmx and other code in that respective directory like FR for France, AR for arabic, simplifies chinese or spanish.

Q. Whats main concurrent Manager types.
ICM – Internal Concurrent Manager which manage concurrent Managers
Standard Managers – Which Manage processing of requests.
CRM – Conflict Resolution Managers , resolve conflicts in case of incompatibility.

Q. Where is Concurrent Manager log file location ?
By default standard location is $APPLCSF/$APPLLOG , in some cases it can go to $FND_TOP/log as well.

. List some ad utilities and their functions?
adadmin, adctrl, adpatch, adlicmgr, admrgpch, adsplice and adworker

Q. List out the modules related to oracle Apps DBA ?

FND – Application Object Library, AU – Application Utilities, AD – Application DBA

Q. How many concurrent mangers can be used ? what is the limit ?
There is no such documented limit on number of concurrent managers, as long as you have enough operating system resource (memory).

Q. How would you check if the tablespace is in backup mode ?
– Check in v$backup
SQL> SELECT d.tablespace_name, b.status FROM dba_data_files d, v$backup b
WHERE d.file_id = b.FILE# and b.STATUS = ‘ACTIVE’ ;

Q. What is “Custom TOP” in apps ?
– Custom top is similar to other tops under APPL_TOP but containing custom (client) specific functionality. Apps DBA need to define custom TOP and register all custom code under CUSTOM TOP

Q. if you find that under $FND_TOP/secure directory, there are many .dbc files, how would you know which is the correct one ?
– System picks up dbc file based on profile option value “Applications Database ID

Q Where is applications start/stop scripts stored ?

Ans: $COMMON_TOP/admin/scripts/$CONTEXT_NAME

How to confirm if Report Server is Up & Running ?

Ans: Report Server is started by executable rwmts60 on concurrent manager Node & this file is under $ORACLE_HOME/bin .execute command on your server like
ps -ef | grep rwmts60
You should get output like
applmgr ……. rwmts60 name=REP60_VISION
where VISION is your Instance name.
Else you can submit a request like “Active Users” with display set to PDF, check output & log file to see if report server can display PDF files

How you will start Discoverer in Oracle Apps 11i ?

Ans: In order to start dicoverer you can use script under $OAD_TOP/admin/scripts/$CONTEXT_NAME
or under $ORACLE_HOME/discwb4/util (under Middle/Application Tier)

How to check number of forms users at any time ?

Ans: Forms Connections initiate f60webmx connections so you can use
ps -ef | grep f60webmx | wc –l

What is 0 & Y in FNDCPASS, FNDLOAD or WFLOAD ?

Ans: 0 & Y are flags for FND Executable like FNDCPASS & FNDLOAD where
0 is request id (request ID 0 is assigned to request ID’s which are not submitted via Submit Concurrent Request Form.
‘Y’ indicates the method of invocation. i.e. it is directly invoked from the command-line not from the Submit Request Form.

Q. What are .ldt & .lct files which you see in apps patch or with FNDLOAD ?

Ans: .ldt & .lct stands for Loader datafile & Loader configuration files, used frequently in migrating customization, profile options, configuration data, etc.. across Instances.

Q. What is dev60cgi & f60cgi ?

Ans: cgi stands for Common Gateway Interface and these are Script Alias in Oracle Apps used to access forms server . Usually Form Server access directly via http://hostname:port/dev60cgi/f60cgi

Q. How to compile an Oracle Reports file ?

Ans: Utility adrepgen is used to compile Reports. Synatx is given below

adrepgen userid=apps\ source = $PRODUCT_TOP\srw\filename.rdf dest=$PRODUCT_TOP\srw\filename.rdf stype=rdffile dtype=rdffile logfile=x.log overwrite=yes batch=yes dunit=character

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