Want the best practices docs on Oracle database Admin provided by Oracle

Hi there,
I looked at everywhere and didn’t find the best practices docs on Oracle database administration especially on creating db in oracle 10g dbs. I can find bits and pieces here and there. But I didn’t find all incorporated in one. Could somebody direct/provide me on this?

ok, I'm not looking for the oracle provided manual to find out the best practices in db field. I'm looking for the best practices when creating the db in oracle db, for example. I can read all the oracle manual in Oracle tihiti world. But I don't know the most used and practical things to do when creating the db:- If I have to define what should be the best practices when creating the db, here are the checklist:
Here are the best practices when creating the Oracle 10 DBs:
1.     Create meaningful database name
2.     Create the directory structure following the Optimal Flexible Architecture(OFA)
a.     Give suffix for the redo log .LOG
b.     Give suffix for the data file .DBF
c.     Give suffix for the Control file .CTL
3.     Enable Password complexity
4.     Enable ARCHIVELOG Mode
5.     Use User Oracle Managed File
6.     Create separate tablespace for data files and Indexes
7.     Put archive log in different multiple drives
8.     Multiplex redo log files, and control file
etc.
I want to see what other db gurus considers the best practices in the field.

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BEST PRACTICES FOR CREATING DISCOVERER DATABASE CONNECTION -PUBLIC VS. PRIV

I have enabled SSO for Discoverer. So when you browse to http://host:port/discoverer/viewer you get prompted for your SSO
username/password. I have enabled users to create their own private
connections. I log in as portal and created a private connection. I then from
Oracle Portal create a portlet and add a discoverer worksheet using the private
connection that I created as the portal user. This works fine...users access
the portal they can see the worksheet. When they click the analyze link, the
users are prompted to enter a password for the private connection. The
following message is displayed:
The item you are requesting requires you to enter a password. This could occur because this is a private connection or
because the public connection password was invalid. Please enter the correct
password now to continue.
I originally created a public connection...and then follow the same steps from Oracle portal to create the portlet and display the
worksheet. Worksheet is displayed properly from Portal, when users click the
analyze link they are taken to Discoverer Viewer without having to enter a
password. The problem with this is that when a user browses to
http://host:port/discoverer/viewer they enter their SSO information and then
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When private connections are used, no connection information is displayed to
SSO users when logging into Discoverer Viewer.
For the very first step, when editing the Worksheet portlet from Portal, I enter the following for Database
Connections:
Publisher: I choose either the private or public connection that I created
Users Logged In: Display same data to all users using connection (Publisher's Connection)
Users Not Logged In: Do no display data
My question is what are the best practices for creating Discoverer Database
Connections.
Is there a way to create a public connection, but not display it in at http://host:port/discoverer/viewer?
Can I restrict access to http://host:port/discoverer/viewer to specific SSO users?
So overall, I want roughly 40 users to have access to my Portal Page Group. I then want to
display portlets with Discoverer worksheets. Certain worksheets I want to have
the ability to display the analyze link. When the SSO user clicks on this they
will be taken to Discoverer Viewer and prompted for no logon information. All
SSO users will see the same data...there is no need to restrict access based on
SSO username...1 database user will be set up in either the public or private
connection.

You can make it happen by creating a private connection for 40 users by capi script and when creating portlet select 2nd option in Users Logged in section. In this the portlet uses there own private connection every time user logs in.
So that it won't ask for password.
Another thing is there is an option of entering password or not in ASC in discoverer section, if your version 10.1.2.2. Let me know if you need more information
thnaks
kiran

Best practice for install oracle 11g r2 on Windows Server 2008 r2

Dear all,
May I know what is the best practice for install oracle 11g r2 on windows server 2008 r2. Should I create a special account for windows for the oracle database installation? What permission should I grant to the folders where Oracle installed and the database related files located (datafiles, controlfiles, etc.)
Just grant Full for Administrators and System and remove permissions for all others accounts?
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Hi Christian,
Check this on MOS
*RAC Assurance Support Team: RAC Starter Kit and Best Practices (Windows) [ID 811271.1]*
https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=BULLETIN&id=811271.1
DOC Modified: 14-DEC-2010
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Best practice to create a database

please can you send me the best practice to create a database which is want to be used in the future for a dataware house

Hi,
For Dataware housing purpose only means you can create the database by using DBCA. or for only transctional purpose means you can create manyally. like create control file , datafiles and all.
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Mindlance,
Oracle Applications Team
BANGLORE..66
Mobile:+919986556688
Land:080-41464843 Ext-4942
[email protected]

What is the best practice for connecting to different schemas?

Hi all,
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More or less the question could be put like this:
1) The equivalent of a SQL Server Database in Oracle is a Schema. (more or less)
2) A specific application has it's own schema where it keeps all related objects (Tables, etc)
3) In SQL Server you grant access to the Database and its objects (Tables, etc) to all users of the application.
4) In Oracle do you grant access to the Schema and its objects (Tables, etc) to all users of the application also? Or do all users log
in as the schema owner?
So in Oracle if there existed [SchemaApplication].[table1], how would [userChris] and [userDave] query [SchemaApplication].[table1]?
Would Chris and Dave log in as [userChris] and [userDave], or would they normally log in as [userApplication]?
finally, is it good practice to log in as a unique user eg [userChris] and then issue the
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command to change the way references to tables are interpreted?

We are porting an application from SQL Server to oracle and would like to know what the best practices are in oracle for user connections to an Oracle instance.
More or less the question could be put like this:
1) The equivalent of a SQL Server Database in Oracle is a Schema. (more or less)
2) A specific application has it's own schema where it keeps all related objects (Tables, etc)
3) In SQL Server you grant access to the Database and its objects (Tables, etc) to all users of the application.
4) In Oracle do you grant access to the Schema and its objects (Tables, etc) to all users of the application also? Or do all users log
in as the schema owner?There are ways to implement the same.
Case 1.
Create different roles, such as APP_ROLE, READONLY_ROLE. Create public synonym for objects in SchemaApplication user. Grant these role to single user say appUser this is different from you SchemaApplication user. Use appUser to connect to application and for different user like userChris, userDave provide another layer of security. Say userDave is allowed only to deal with cash related transaction, so allow him to open only those screens which are related to cash transaction only.
Case 2.
Create public synonym and grant privilege on tables from SchemaApplication to different users (say userChris, userDave).
So in Oracle if there existed [SchemaApplication].[table1], how would [userChris] and [userDave] query [SchemaApplication].[table1]?This is resolved by public synonym. There are private synonym as well, you can create this also but in this case you have to create private synonym for each of the users.
Would Chris and Dave log in as [userChris] and [userDave], or would they normally log in as [userApplication]? I would suggest you to connect either using a new user(Case 1) or the user itself has account in the database(Case2).
finally, is it good practice to log in as a unique user eg [userChris] and then issue the
alter session set current_schema = shemaApplication;
No. It is not a good practice to allow the user to login to database using the application owner.
command to change the way references to tables are interpreted?The public/private synonym can be used to resolve the schema.object value. For example, if SchemaApplication has table T, then you can create public synonym as 'CREATE PUBLIC SYNONYM T FOR SchemaApplication.T'; and now you can refer this table as T from any other schema(user).
HTH
Virendra

Best practice for integrating oracle atg with external web service

Hi All
What is the best practice for integrating oracle atg with external web service? Is it using integration repository or calling the web service directly from the java class using a WS client?
With Thanks & Regards
Abhishek

Using Integration Repository might cause performance overhead based on the operation you are doing, I have never used Integration Repository for 3rd Party integration therefore I am not able to make any comment on this.
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Edited by: Rajeev_R on Apr 29, 2013 3:49 AM

SharePoint 2007 - the best practice to detached/remove a content database from a web app without any Farm impact

Best
practice to remove content databases from SharePoint 2007 without any Farm
impact <o:p></o:p>

Hi ,
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Reference:
http://technet.microsoft.com/en-us/library/cc262440(v=office.12).aspx
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Hello,
I want to ensure that I am using the best practices for managing and maintaining our Database.
Is there any documentation out there that outlines how to maintain and ensure top performance out of our database?
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I appreciate the responses, however this is not the information I am looking for.
I am specificaly looking for best practices invloving the managment and performance tuning.
Example: are their tools that I can install that will monitor the size and response time of the database and alert me if there is degradation in performance?
Are there specific periodic activities I should be doing to garuntee that my database will continue to function that way it is supposed to?
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Database Log File becomes very big, What's the best practice to handle it?

The log of my production Database is getting very big, and the harddisk is almost full, I am pretty new to SAP, but familiar with SQL Server, if anybody can give me advice on what's the best practice to handle this issue.
Should I Shrink the Database?
I know increase hard disk is need for long term .
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Hi Finke,
Usually the log file fills up and grow huge, due to not having regular transaction log backups. If you database is in FULL recovery mode, every transaction is logged in Transaction file, and it gets cleared when you take a log backup. If it is a production system and if you don't have regular transaction log backups, the problem is just sitting there to explode, when you need a point in time restore. Please check you backup/restore strategy.
Follow these steps to get transactional file back in normal shape:
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2.) shrink log file. ( DBCC shrinkfile('logfilename',10240)
The above command will shrink the file to 10 GB.(recommended size for high transactional systems)
>
Finke Xie wrote:
> Should I Shrink the Database? .
"NEVER SHRINK DATA FILES", shrink only log file
3.) Schedule log backups every 15 minutes.
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[XI 3.1] BEST PRACTICE method of Oracle connection for RPTs on Linux

Business Objects XI (3.1) - SP3.
Running on Red Hat Enterprise Linux OS.
7,000+ Crystal Reports 2008 *.rpt objects ONLY (No Universe / No WebI).
All reports connecting to Oracle 10g databases.
==================
In the past, all of this infrastructure was running on Windows Server OS and providing the database access via a Named ODBC connection (eg. "APP_DATA".)
This made it easy to manage as all the Report Developers had a standard System DSN called "APP_DATA" which was the same as the System DSN name on all of our DEV, TEST/UAT, and PROD servers for Business Objects.
When we wanted to move/promote a *.rpt file from DEV to PROD we did not have to change any "Database Connection" info as it was all taken care of by pointing the System DSN called "APP_DATA" a a different physical Oracle server at the ODBC level.
Now, that hardware is moving from Windows OS to Red Hat Linux and we are trying to determine the Best Practices (and Pros/Cons) of using one of the three methods below to access the Oracle database for our *.rpts....
1.) Oracle Native connection
2.) ODBC connection
3.) JDBC connection
Here's what we have determined so far -
1a.) Oracle Native connection should be the most efficient method of passing SQL-query to the DB with the fewest issues and best speed [PRO]
1b.) Oracle Native connection may not be supported on Linux - http://www.forumtopics.com/busobj/viewtopic.php?t=118770&view=previous&sid=9cca754b468fc67888ab2553c0fbe448 [CON]
1c.) Using Oracle Native would require special-handling on the *.rpts at either the source-file or the CMC level to change them from DEV -> TEST -> PROD connection. This would result in a lot more Developer / Admin overhead than they are currently used to. [CON]
2a.) A 3rd-Party Linux ODBC option may be available from EasySoft - http://www.easysoft.com/products/data_access/odbc_oracle_driver/index.html - which would allow us to use a similar Developer / Admin overhead to what we are used to. [PRO]
2b.) Adding a 3rd-Party Vendor into the mix may lead to support issues is we have problems with results or speeds of our queries. [CON]
3a.) JDBC appears to be the "defacto standard" when running Oracle SQL queries from Linux. [PRO]
3b.) There may be issues with results or speeds of our queries when using JDBC. [CON]
3c.) Using JDBC requires the explicit-IP of the Oracle server to be defined for each connection. This would require special-handling on the *.rpts at either the source-file (and NOT the CMC level) to change them from DEV -> TEST -> PROD connection. This would result in a lot more Developer / Admin overhead than they are currently used to. [CON]
==================
We would appreciate some advice from anyone who has been down this road before.
What were your Best Practices?
What can you add to the Pros and Cons listed above?
How do we find the "sweet spot" between quality/performance/speed of reports and easy-overhead for the Admins and Developers?
As always, thanks in advance for your comments.

Hi,
I just saw this article and I would like to add some infos.
First you can quite easely reproduce the same way of working with the odbc entries by playing with the oracle name resolution on the server. By changing some files (sqlnet, tnsnames.ora,..) you can define a different oracle server for a specific name that will be the same accross all environments.
Database name will be resolved differently regarding to the environment and therefore will access a different database.
Second option is the possibility to change the connection in .rpt files by an automated way like the schedule manager. This tool is a additional web application to deploy that can change the connection settings of rpt reports on thousands of reports in a few clicks. you can find it here :
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/80af7965-8bdf-2b10-fa94-bb21833f3db8
The last option is to do it with a small sdk script, for this purpose, a few lines of codes can change all the reports in a row.
After some implementations on linux to oracle database I would prefer also the native connection. ODBC and JDBC are deprecated ways to connect to database. You can use DATADIRECT connectors that are quite good but for volumes you will see the difference.

What is the best practice for creating primary key on fact table?

what is the best practice for primary key on fact table?
1. Using composite key
2. Create a surrogate key
3. No primary key
In document, i can only find "From a modeling standpoint, the primary key of the fact table is usually a composite key that is made up of all of its foreign keys."
http://download.oracle.com/docs/cd/E11882_01/server.112/e16579/logical.htm#i1006423
I also found a relevant thread states that primary key on fact table is necessary.
Primary Key on Fact Table.
But, if no business requires the uniqueness of the records and there is no materilized view, do we still need primary key? is there any other bad affect if there is no primary key on fact table? and any benifits from not creating primary key?

Well, natural combination of dimensions connected to the fact would be a natural primary key and it would be composite.
Having an artificial PK might simplify things a bit.
Having no PK leads to a major mess. Fact should represent a business transaction, or some general event. If you're loading data you want to be able to identify the records that are processed. Also without PK if you forget to make an unique key the access to this fact table will be slow. Plus, having no PK will mean that if you want to used different tools, like Data Modeller in Jbuilder or OWB insert / update functionality it won't function, since there's no PK. Defining a PK for every table is a good practice. Not defining PK is asking for a load of problems, from performance to functionality and data quality.
Edited by: Cortanamo on 16.12.2010 07:12

What is the best practice to perform DB Backup on Sun Cluster using OSB

I have a query on OSB 10.4.
I want to configure OSB 10.4 on 2 Node Sun Cluster where the oracle database is running.
When im performing DB backup, my DB backup job should not get failed if my node1 fails. What is the best practice to achieve this?

Hi,
Each Host that participates in an OSB administrative domain must also have some pre-configured way to resolve a host name to an IP address.Use DNS, NIS etc to do this.
Specify cluster IP in OSB, so that OSB always looks for Cluster IP only instead of physical IPs of each node.
Explanation :
If it is 2-Node OR 4-Node, when Cluster software installed in these nodes we have to configure Cluster IP so that when one node fails Cluster IP will automatically move to the another node.
This cluster IP we have to specify whether it is RMAN backup or Application JDBC connection. Failing to second node/another Node is the job of Cluster IP. So wherever we install cluster configuration we have to specify in all the failover places specify CLUSTER IP.
Hope it helps..
Thanks
LaserSoft

PX Best Practice doc for vSphere?

Is there a best practice doc for utilizing the PX devices in a vSphere environment? Specifically I'm interested in 'Boot from SAN' for two vSphere 5.1 Host servers (RD630's) dual switch iSCSI connected to a PX12-450.
If no Best Practice then perhaps a Config doc?
Thanks

Hi neilchapman,
I am not too familiar with vSphere personally or how to boot from SAN, but as far as I know you create the iSCSI LUN on the NAS device and use vSphere to connect to the LUN. Do you need help with setting up the iSCSI LUN or with configuring vSphere? If you need assistance with vSphere, you might want to contact VMware support: http://www.vmware.com/support/vsphere/
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Best Practices for user ORACLE

Hello,
I have few linux servers with user ORACLE.
All the DBAs in the team connecting and working on the servers as ORACLE user and they dont have sperate account.
I create for each DBA its own account and would like them to use it.
The problem is that i dont want to lock the ORACLE account since i need it for installation/upgrade and etc , but yet i dont what
the DBA Team to connect and work with the ORACLE user.
What are the Best Practice for souch case ?
Thanks

To install databases you don't need acces to Oracle.
Also installing 'few databases every month' is fundamentally wrong as your server will run out of resources, and Oracle can host multiple schemas in one database.
"One reason for example is that we have many shell scripts that user ORACLE is the owner of them and only user ORACLE have a privilege to execute them."
Database control in 10g and higher makes 'scripts' obsolete. Also as long as you don't provide w access to the dba group there is nothing wrong in providing x access.
You now have a hybrid situation: they are allowed interactively to screw 'your' databases, yet they aren't allowed to run 'your' script.
Your security 'model' is in urgent need of revision!
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Senior Oracle DBA

What is the best practice for inserting (unique) rows into a table containing key columns constraint where source may contain duplicate (already existing) rows?

My final data table contains a two key columns unique key constraint. I insert data into this table from a daily capture table (which also contains the two columns that make up the key in the final data table but are not constrained
(not unique) in the daily capture table). I don't want to insert rows from daily capture which already exists in final data table (based on the two key columns). Currently, what I do is to select * into a #temp table from the join
of daily capture and final data tables on these two key columns. Then I delete the rows in the daily capture table which match the #temp table. Then I insert the remaining rows from daily capture into the final data table.
Would it be possible to simplify this process by using an Instead Of trigger in the final table and just insert directly from the daily capture table? How would this look?
What is the best practice for inserting unique (new) rows and ignoring duplicate rows (rows that already exist in both the daily capture and final data tables) in my particular operation?
Rich P

Please follow basic Netiquette and post the DDL we need to answer this. Follow industry and ANSI/ISO standards in your data. You should follow ISO-11179 rules for naming data elements. You should follow ISO-8601 rules for displaying temporal data. We need
to know the data types, keys and constraints on the table. Avoid dialect in favor of ANSI/ISO Standard SQL. And you need to read and download the PDF for:
https://www.simple-talk.com/books/sql-books/119-sql-code-smells/
>> My final data table contains a two key columns unique key constraint. [unh? one two-column key or two one column keys? Sure wish you posted DDL] I insert data into this table from a daily capture table (which also contains the two columns that make
up the key in the final data table but are not constrained (not unique) in the daily capture table). <<
Then the "capture table" is not a table at all! Remember the fist day of your RDBMS class? A table has to have a key. You need to fix this error. What ETL tool do you use?
>> I don't want to insert rows from daily capture which already exists in final data table (based on the two key columns). <<
MERGE statement; Google it. And do not use temp tables.
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

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