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APPS DBA INTERVIEW Questions and Answers
APPS DBA INTERVIEW Questions and Answers Questions 1. What happens if the ICM goes down? 2. How will you speed up the patching process? 3. How will you handle an error during patching? 4. Provide a...
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Oracle DBA Common Interview Questions
DBA Interview Questions During an interview a DBA candidate is expected to answer a variety of questions, however most of the questions fall under the following categories and as a dba job candidate,...
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Oracle DBA Interview Questions Answers
60 Oracle Database Administration (DBA) Interview Questions (Technical) 1. What is an Oracle Instance? An Oracle database server consists of an Oracle database and an Oracle instance. Every time a...
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TNS-12535: operation timed out
Check for firewall settings if any had been configured. Change firewall setting disable it. or Just disable your network adapters, stop oracle server then restart server then re enable your network...
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ORA-12705: Cannot access NLS data files or invalid environment specified
hile running autoconfig in oracle apps on database side, you might encounter this error. Also you can see this when you do sqlplus from command prompt. Cause: Either your NLS_LANG parameter is not set...
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ORA-03113: end-of-file on communication channel
If you get this error, check the alert file, most likely there is not enough space on your recovery area to create an archivelog; and if your problem is archivelog, clean the area and start the...
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R12 Cannot Enter Any Receipt APP-PO-14142...
R12 Cannot Enter Any Receipt APP-PO-14142 rcv_receipts_th.insert_transaction-001: ORA-0000: [ID 945443.1] In this Document Applies to: Oracle Inventory Management – Version 12.0.0 to 12.1.3 [Release...
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UNDO_RETENTION
What is UNDO_RETENTION ? Determines how long to retain undo data to provide for consistent reads,defined in seconds ALTER SYSTEM SET UNDO_RETENTION=900; 900 Sec = 15 min Even with UNDO_RETENTION set,...
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Maintenance Mode – from 11.5.10 version
Maintenance Mode is a new mode of operation introduced with Release 11.5.10, in which the Oracle Applications system is made accessible only for patching activities not allowing the users to login to...
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Cannot complete applications logon. You may have entered an invalid...
Solution: In my case the error ‘Cannot complete applications logon. You may have entered an invalid applications password, or there may have been a database connect error’ occurs inorder to open the...
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ADPatch Modes
VARIOUS MODES/OPTIONS OF ADPATCH: There are various options available for applying patch in Oracle apps 11i and R12 environment. ADpatch comes with lots of option that can be used, especially when we...
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Oracle Clusterware manual control command lines
Oracle Clusterware manual control command lines Cluster Ready Service - crsctl must run as root: > crsctl stop crs > crsctl start crs > crsctl disable crs > crsctl enable crs...
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Oracle 11g RMAN Validate command.
The validate command can be used to detect corrupt blocks and missing files, also to determine whether backup set can be restored. The validate command can check for physical and logical corruptions...
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Adding Node in RAC
This document explains the step by step process of adding a Node to the 11g R1 RAC Cluster. In this process, I am going to add a single node (node2-pub) to single node RAC cluster online without...
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Oracle RAC 11gR2 ASMCMD Commands.
Saving your ASM Spfile. Check spfile location. [root@rac1 bin]# su – grid [grid@rac1 ~]$ echo $ORACLE_SID +ASM1 [grid@rac1 ~]$ sqlplus / as sysasm SQL*Plus: Release 11.2.0.1.0 Production on Sat Sep 22...
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Workflow Notification Mailer
Workflow Notification Mailer Steps to start/stop notification mailer 1. Check workflow mailer service current status sqlplus apps/<apps password> select running_processes from...
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ora-01403 ora-06512 error
ORA-01403 Jump to: navigation, search ORA-01403: No data found [edit] What causes this error? An ORA-01403 error occurs when a SQL statement, written within a PL/SQL block, does not fetch any data....
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Table Fragmentation
When rows are not stored contiguously, or if rows are split onto more than one block, performance decreases because these rows require additional block accesses. Note that table fragmentation is...
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How to read AWR reports
How to read AWR reports To generate AWR, read my article http://bash-dba.blogspot.com/search/label/AWR?updated-max=2011-09-27T12%3A36%3A00-04%3A00&max-results=20 OK let start analysing AWR This is...
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USEFUL SCRIPTS
Queries : Memory, Free Space, Size, Temp Files, Control Files etc.. Database block size: select to_number(value) “Block size in bytes” from sys.v_$parameter where name = ‘db_block_size’; Max number...
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