Database administrator (core DBA)

hello sir,
my self chandrika..
If mirroring got failed. How do i know, and what alerts will get ? will please clarify my doubt.

If mirroring got failed. How do i know, and what alerts will get ? will please clarify my doubt.
Hello Chandrika,
There can me many reasons for mirror to fail.It can be due to mirror server not available ,network failure between principal and mirror.Log file getting full on primary server due to lack of transaction log backup.
You can use mirroring monitor to see status,size of logs being sent .You have to manually configure alert for DB mirroirng
Other very good option is to use Witness for automatic failover
http://technet.microsoft.com/en-us/library/ms175191.aspx
Please mark this reply as the answer or vote as helpful, as appropriate, to make it useful for other readers

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What is Apps DBA and Core DBA?

Dear Friends,
I often come across the terms 'Apps DBA'. I have been trying to get it clarified from many, but I am not convinced. I want to know what is the role of Apps DBA?
What are the duties performed by Apps DBA? How is it different from core DBA?
I request you to explain on the above subject.
Thanks and regards
Bharath Kumar V

Hi Bharath,
I want to know what is the role of Apps DBA?That's a common question! An Oracle Applications DBA is very different from a regular Oracle database administrator and requires specialized skills in business administration and Oracle application server architectures. The Oracle Applications DBA job role is less compartmentalized than a traditional Oracle DBA and the Oracle Applications DBA must also have skills in these areas:
- Database Design - Many shops require customized functional extensions and reporting data marts and the Oracle Applications DBA must have outstanding Database design skills.
- Oracle Application Server - The Oracle Applications DBA must understand the internals of the Oracle concurrent manager and understand how to monitor and tune Oracle Applications.
- Functional Expertise - Many shops requires a business degree and a general understanding of the Oracle Applications module. For example, accountants are widely used to support Oracle eBusiness Suite (Oracle Financials), and accountants with an IT background are easily trained in Oracle Applications DBA support.
I have my full notes here, on theb Apps DBA job roles:
http://www.dba-oracle.com/t_how_to_become_oracle_applications_dba.htm
Hope this helps. . .
Donald K. Burleson
Oracle Press author
Author of "Oracle Tuning: The Definitive Reference":
http://www.dba-oracle.com/bp/s_oracle_tuning_book.htm

Who is Core DBA

Who is Core DBA
- What are the tasks of a Core DBA
- Avilability of Core DBA Jobs
- Eligibility for the Core DBA Jobs
thanks and Regards

Who is Core DBA
- What are the tasks of a Core DBAThe definition changes based on the company hiring the DBA.
However, Oracle has a good set of job responsibility descriptions in Chapter 1 of the Oracle Administrator's Guide under the sections
Types of Oracle Database Users, and
Tasks of a Database Administrator
The document can be found in the 10g Release 2 document library at http://www.oracle.com/pls/db102/homepage
- Avilability of Core DBA JobsChanges based on the location.
- Eligibility for the Core DBA JobsChanges based on the need of the potential employer. And your ability to convince an employer that you are capable of doing the job.
In some locations, convincing employers is easier if you get some Oracle Certification - see the certification link at http://education.oracle.com and the general certification information at http://www.prometric.com

How to apply row level security against the database administrator

I would like an advice in applying row level security against the database administrator. We need to prevent DBA from editing data in some table rows or have any indication that data was corrupted.
There is no problem in viewing the data so we considered one way hash function or digital signature which will be stored in the same table, but we see following disadvantages:
HASH - DBA may use the same hash function to update the stored data after he changes the sensitive row.
Digital signature - the is a need to manage and keep the private key in a safe place outside of DB
Is there additional ways to achieve the aim?

Does VPD helps to prevent from DBA to edit/view a data in specific rows?Yes.
If I correctly understand, DBA has full access to security policy used by VPD to control the access and can grant himself privileges that I don't want.You can to define which users can be exempt of the politics, for the context or by Grant EXEMPT.
This includes DBAs.
The simple fact of being DBA doesn't guarantee the exemption.
Everything goes to depend of the VPD config.

Career from Systems to Database Administrator

Hi all,
I need some career advice. I want to persue my career as an Oracle Database Administrator and I have underwent a basic level of training on Oracle Database administration.However, I have been recently moved to a team which is into -- systems. And my work is mainly related to Active Directory,Exchange and managing servers.
I searched a lot about -- 'starting the career as an Oracle DBA' and found out that people generally start as Systems Admin/Unix Admin/Developer and then switch to DBA Admin. My work experience is less than 1 year. I would like to know-- should I continue with this Systems work and get some experience in System Admin to get into Oracle DBA Admin?
If so,then for how long should I continue with Systems before actually switching over to Database Administration? Moreover, should I do some certifications like MCSE while I am working in Systems? And when and how should I start my preparation for Oracle certifications?
Hope to get inputs from you all.
Thanks in advance

you have to have some earnings, if you are already at another area, you can take adavantage of being already hired somewhere, and you can start studing in parallel so you get acquinted with oracle. First kind of job you may find is a DBA at entry level, which lets you in a pretty difficult position, but there is no other way to start.
Download software and manuals and start practicing as much as you can. A lot of peaple I have seen here at entry level have taken this strategy:
- continue with current job
- start self-studing oracle from manuals
- installed oracle at a local pc/laptop (XE or EE)
- a lot of questions, lack of concepts, problems, bad configuration appear
- they take advantage of this forum to start troubleshooting and continue learning
- when they feel more comfortable with knowledge the make the OCA exam and later on OCP.
- either way, keep studying
~ Madrid.

One Book or Document for start on Database Administration

Hi
Before anything thanks to everybody that contribute on this forum.
May you introduce me book or document for start on Oracle database administration?
Thanks in advance

Besides the 2-Day dba guide, you should have a read of the Concepts and Administrator guide from the docs at http://tahiti.oracle.com . In addition, read these following books as well,
http://www.amazon.com/Beginning-Oracle-Database-11g-Administration/dp/1590599683/ref=sr_1_1?ie=UTF8&qid=1331391080&sr=8-1
http://www.amazon.com/Expert-Oracle-Database-Architecture-Programming/dp/1430229462/ref=sr_1_3?s=books&ie=UTF8&qid=1331391103&sr=1-3
Good luck!
HTH
Aman....

Database administration.

I dont have any database experience and I would like to start with a possible out come to become a database administrator not necessarily a programmer. As you can imagine what I would appreciate is any information on where to start with Oracle databases administrator since they are considered a stable and reliable products. Books either online or by purchasing them, opinions etc. are most welcomed. I have a background in programming with Java and system administrator but not with databases. To that end, any help on how to proceed to my database learning venture even as to suggest that I could get the OCA certification, after seeing the cert paths of Oracle would be appreciated.

First step was the right step, forum participation. You can post here all your requests, questions, setup, configuration, references, and answer are at a very high level.
I would suggest you this:
. Download Oracle RDBMS software, you can start easy with the Oracle XE edition, it is lightweight and very easy to setup and use. For advanced features you may want to use the Enterprise Edition.
. Download de SQLDeveloper, it will provide you a very good tool to access, database.
. Download the manual to have it handy in case you require it and you are offline.
. Start with the two-days dba manual http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14196/toc.htm and start practicing from here
. Once you are involved with this dba topic you can proceed to specific points, as described at the Certification Exam Guide. This way you'll start getting involved with very specific aspects of database administration and you'll be preparing for the OCA exam at the same time.
. Practice - practice - practice ... and ah! keep practicing.
. Questions, issues, and so on, we all here will be gladly to answer.
~ Madrid.

Production database administration

What is the difference between development DBA and production DBA? Will the junior/mid level DBAs be involved in production database administration?

You can't say DEV DBA or production DBA. The word should be development environment and production environment.
Development environment- This environment is used for testing purpose for the company. In this environment developer can change/alter/deploy their code as necessary. They can change any object for the business requirements and test. If the test is successful they can apply it to the production database.
Production environment - This is the live environment for the company which is critical for business. No testing should be applied in the production environment.
Yes any junior DBA can administration the production database but in a limited domain. He/She must be guide by a senior DBA.
Regards
Asif Kabir

Oracle Core DBA Learning

Hi All,
Currently i am working as Oracle Apps DBA in Oragnization and i also have to work some time on core side also. But i am facing some time problems because i have not worked much on core side. As i have started my first job it self as Apps DBA only. So my question is that i want to learn on core side more. Can you guide me how can i learn on core sid more? I would like to learn what ever every day routine work is done by core dba. I would appricated your help.
Thanks,
Vishal Joshi

Vishal Joshi wrote:
Hi All,
Currently i am working as Oracle Apps DBA in Oragnization and i also have to work some time on core side also. But i am facing some time problems because i have not worked much on core side. As i have started my first job it self as Apps DBA only. So my question is that i want to learn on core side more. Can you guide me how can i learn on core sid more? I would like to learn what ever every day routine work is done by core dba. I would appricated your help.
Thanks,
Vishal Joshigo through with Oracle Architecture & Administration
http://download.oracle.com/docs/cd/B19306_01/server.102/b14231.pdf

Masters in Database Administration

Hi,
I work as a oracle dba. Have certified on 10g.
I wanted to know about the degree Masters in Database administration, Data Modelling and Data Warehousing.
What exactly is covered under these courses.
As to which universites would be good to do it from.
Any universities in India offer them ?
Thanks.

Hi A/K
I wanted to know about the degree Masters in Database administration, Data Modelling and Data Warehousing.
Are you thinking about the Oracle Certified Master ? Or some training courses on those topics?
Database administration > http://en.wikipedia.org/wiki/Database_administrator
Data Modelling read that> http://en.wikipedia.org/wiki/Data_modeling
Data Warehousing > http://en.wikipedia.org/wiki/Data_warehouse
What exactly is covered under these courses.
See the previous links
As to which universites would be good to do it from.
Are you working for a company then get them to paid for the Oracle training courses especially if relevant with your work/.
Any universities in India offer them ?
No idea..... but try to google on that...

R12 Applications Database Administrator Certified Professional. (1Z0-238)

Hi everyone
I am OCP and would like to get Oracle E-Business Suite R12 Applications Database Administrator Certified Professional. I need to take test (1Z0-238). I cannot take a class since I travel all the time. Does anyone know of a good book?
Thanks

Hi,
I do not think there is any book available in the market that covers the topics of this exam/certification. However, I would suggest the following references/links, it should be helpful.
Oracle Applications DBA - Covers 11i and R12
http://www.amazon.com/Oracle-Applications-DBA-Covers-11i/dp/0070077290
Applications Releases 11i and 12
http://www.oracle.com/technology/documentation/applications.html
Oracle E-Business Suite R12 Applications Database Administrator Certified Professional
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=210
E-business suite book recommendations
E-business suite book recommendations
Regards,
Hussein

Oracle Database administration

Should a Oracle DBA know to configure the linux OS and the networks of a server while configuring a new server

Toni Lazarin wrote:
Hans Forbrich wrote:
Industry Rule #1 - when providing a new server to the DBA, make sure that the DBA is not involved
Therefore the DBA, in the process of accepting the new server, must be able to return the machine with a list of 'recommendations and requests' for configuration
Industry Rule #2 - if there is an application, system, network, power or configuration issue ... blame the DBA first.
Therefore the DBA, in the process of being able to assign the problem to the proper department or person, must be able to inspect, identify and understand all configuration settings.
Industry Rule #3 - any non-database administrator must refute the DBA analysis.
Therefore the DBA, in the process of PROVING that the problem is not with the database, must be able to provide the correct configuration values.This is great.
I couldn't resist not to qoute this.
Thanks.Glad you like it - it's based on experience. Feel free to quote it. (Feel free to attribute as well, if you remember.)
/Hans

Difference between Core DBA and Apps DBA

Hi Experts,
I am In to Oracle DBA, where i ill manager DB through out the SDLC and also manage Backups,assist the developers with database activities(like query's,procedures,function's...etc).
I want to know what will be the work for Oracle Apps DBA.
Please give details in detail,as i want learn more.
Regards,
Rajini.V

Hi Rajini;
I am In to Oracle DBA, where i ill manager DB through out the SDLC and also manage Backups,assist the developers with database activities(like query's,procedures,function's...etc).
I want to know what will be the work for Oracle Apps DBA.Firstly you are on wrong site for your question, i belive you should ask it on Forum Home » E-Business Suite » EBS General Discussion forum part. Check below links:
http://forums.oracle.com/forums/search.jspa?threadID=&q=core+dba+vs+apps+dba&objID=f475&dateRange=all&userID=&numResults=15&rankBy=10001
http://www.google.com.tr/#hl=tr&source=hp&biw=1276&bih=793&q=Core+DBA+vs+Apps+DBA+&aq=f&aqi=&aql=&oq=&fp=59bee11737e76a38
Mainly Oracle apps dba also manage job like core dba, but apps dba also give support to application side(EBS). Apps dba can apply db patch and also apply application path. Apps dba monitor db activity&performance and also do samethink to application etc etc..
Regard
Helios

What is the best Database Administrator Tool

In my one of my earlier organizations DB administration jobs were done with TOAD. In my next organization my Project manager told that TOAD is actually meant for developers. There the tool was DBArtisan. Now in my present company I would have to take the decision to purchase some DB Administration tool. What should I select ? Any of the two ? Or any third one ? If any suggestion comes it will be a great help for me.
I am using Oracle 8x,9x10g
and the OSs are Unix AIX, Windows etc

It really depends on what you mean by 'Administer the database', 'Database Administrator Tool' and so on. In other words, it depends on what you really want to accomplish.
Many people want a tool to put up pretty pictures and respond to mouse clicks to 'do things'. There are a fair number of tools that accomplish this very well.
TOAD was originally for developers (hence the name Tool for Oracle Application Developer), but it has expanded dramatically to include a number of DBA capabilities. Quest, BMC, Computer Associates and others have excellent tools that are heavily into the 'draw a picture and lead the budding DBA in complacency'.
Even Oracle Enterprise Manager is great from that perspective AND it's free!!! Well, except that you license and pay for the add-on packs that make it truly useful.
To paraphrase Nicolas - the best DBA tool is an intelligent DBA using SQLPlus. All other tools will lead down the path that the tool developer has decided to use. Which may be right for some of the time, but is rarely right all the time, and rarely completely right for the latest and greatest releases of Oracle.

ASE instance not available *** ERROR:ASE instance possibly left running when system went down(system crash?). Notify Database Administrator

Hi Gurus,
I made some changes in rz10 for client copy like:
icm/host_name_full [email protected]
login/accept_sso2_ticket 1
login/create_sso2_ticket 2
icm/server_port_1
PROT=HTTPS,PORT=443$$,PROCTIMEOUT=600,TIMEOUT=600
icm/server_port_0
PROT=HTTP,PORT=80$$,PROCTIMEOUT=600,TIMEOUT=600
login/no_automatic_user_sapstar 0
After to make changes effective, i stopsap & startsap.
But unfortunately db is not coming up. I checked startdb.log it showing
error as " ASE instance not available
*** ERROR:ASE instance possibly left running when system
went down(system crash?).
Notify Database Administrator."
Please help us to resolve this issue, i have also added startdb.log for
your reference.
Regards,
Piyush

Hi Piyush,
Did you solved this issue.
We are facing the same issue and only this thread is there in SCN for this issue.
If you solved this issue,Kindly share the solution.
Thanks and Regards,
Mathan A

Database administrator (core DBA)

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