Server Administration :: Oracle DB Scalability
Aug 9, 2010
Off late few of our customers data have grown and started facing performance issue, we are also planning for new features in our future release, where the database could grow to 150 billion records on some tables.
1) Will Oracle support having such a huge database and be scalable.
2) Will implementing some or all of the following items.
a)Adding More Memory to the servers and increasing the SGA
b)Adding More storage space, better processor
c)Implementing Oracle RAC.
d)De-normalizing on some area's for performance.
e)Partitioning tables.
f)Using in memory cache features.
I understand apart from all the above mentioned a proper database design is the platform to handle such a big database.
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Apr 8, 2010
My manager is asking to create a SQL scrip, which will provide following information.
Our database is 9.2.0.7.0 on Windows 2000 Server
-How many records Insert / Update or Delete daily in my Oracle database?
- Check Archive log / Redo Log switching information?
-Check database growth ?
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Jan 11, 2011
i am trying to install Oracle 10.10.2.0 on Windows Server 2003 standard x64 Edition Service Pack, but when i try to run the installer or open DVD it gives me below error.
"The image file D: is Valid, but is for a machine type other than the current machine."
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Jun 27, 2012
I was trying to delete the database in the test server. When i was deleting listener was already stopped, i continued deleting using dbca, it shown me some alert that datafiles cant be deleted because system could't find database, since listner was stopped so only service was deleted(the one showing in the windows administrator toolsservicesOracleServiceTEST).
All the datafile parameter files are still there. How can i delete the datafiles and parameter files belongs to that database or how to create the deleted service, so that i will start the listener and do the complete deleting of the database.
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Feb 13, 2013
I am trying to find the unix process for one of my application in the database but I am unable to view the same. To simulate, I did the following.
1. My database runs on different server.
2. I invoked "sqlplus" from another unix box to login to the database.
3. I found that the process id (ps -ef |grep sqlplus).
4. When I execute the below mentioned query it does not display the process id that I am looking for. But the osuser, username, program and machine details are correct. How can I know the process details from the database?
SELECT SYS.GV_$SESSION.OSUSER, SYS.GV_$SESSION.USERNAME, SYS.GV_$PROCESS.SPID,
SYS.GV_$SESSION.MACHINE, SYS.GV_$SESSION.PROGRAM,
SYS.GV_$PROCESS.PROGRAM ,SYS.GV_$SESSION.SQL_ID
FROM
SYS.GV_$PROCESS, SYS.GV_$SESSION
WHERE
SYS.GV_$PROCESS.ADDR=SYS.GV_$SESSION.PADDR and SYS.GV_$SESSION.USERNAME='TEST'
and SYS.GV_$SESSION.MACHINE like '%hostname%'
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Jul 26, 2010
While creating the index we are getting the error "ORA-00603: ORACLE server session terminated by fatal error".
We have the space in tablespaces and also in the file systesm.
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Apr 19, 2011
I want to install Oracle 11g R2 in windows 2008 64 bit server. How can I know whether my server is ready to install Oracle ie is all components are available in server or any patch is to be applied etc.
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Jun 29, 2013
I'm trying to connect a oracle client application on the client machine to a remote oracle server on the server machine but i get a connection fail.
On the server machine I configured oracle server in the following way:
Installed oracle server. Created a database "DB_Test" with the database configuration assistant Created a LISTNER with the Oracle NET Manager with the following parameter:
Protocol: TCP/IP HOST: server pc hostname (ENZOVAIO) or server machine address ip (192.168.0.71) in the network lan Port Number: 1521 Created "dbtest" service with the Oracle NET Manager with with the following parameter:
Service Name: "dbtest" Protocol: TCP/IP HOST: server pc hostname (ENZOVAIO) or server machine address ip (192.168.0.71) in the network lan Port Number: 1521
All services on the server machine are running and I opened port number (1521) in the router. On the client machine I installed SQL PLUS and SQL Developer.
With SQL Plus as by the official documentation I have entered the following command:
CONNECT username/password@[//]host[:port][/service_name]. In my case is:
CONNECT SYSTEM/oracledb@//ENZOVAIO:1521/testdb.
With SQL Developer I have entered the same parameter.
But with both SQLPlus and SQL Developer the connection fails.
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Aug 10, 2010
we have oracle server. we have to connect 500+ client machine to oracle server.
is it i need to install client version to all 500+ or any other shortcut way?
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Sep 22, 2010
We performed image copy of production Oracle server (OS and instances) to a backup server. After a few weeks, we try to restore a latest Oracle database backup from production server to backup server. As we know, Oracle instance must be unique on the network.
Even we log on to backup server and bring up the instance, I think that still point to production instance since all init file, TNSNAMES.ora and listener file are still same. If we restore the database, we will end up bring down the production instance and restore on top of productions. How to change instance name on backup server including TNSNAMES, sqlnet, listener files in order for us to restore Oracle database from production to backup server?
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Jun 29, 2011
I recently installed Oracle 10g on my windows Xp laptop. It has become considerably slow since then. I want to start the database server only when I need it, and not every time I start my laptop. I looked around in OEM and did found a way.
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Jul 19, 2011
I am connected as System. It was the only user I set-up a password when installed the database on personal computer.
SQL> alter user sys identified by mypass007
2 /
User altered.
SQL> connect sys/mypass007
ERROR:
ORA-28009: connection as SYS should be as SYSDBA or SYSOPER
[code]...
SQL> conn sysoper/mypass007
ERROR:
ORA-01017: invalid username/password; logon denied
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Apr 11, 2012
We will be having a meeting with our client regarding their Database Server Migration (They are planning to buy a new server). Their current database is Oracle 10gR2, they will not upgrade to 11g, they just plan to migrate to a new more powerful machine.
I was planning to ask the following questions.
1. Specifications of the current server and the new one.
2. Operation system (I think they will use same OS, just an updated one)
3. Can the business afford full downtime on current servers?
4. Size of the DB, because it can take hours to move large files.
And is there documentation regarding Server Migration (Change of machine only, not database upgrade or anything,
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Jul 17, 2013
Does a 10g oracle client works with an Oracle 11g server?
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Feb 20, 2011
How to install oracle 8i and 9i databases on same server for example i want that both type of databases run on same server.
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May 18, 2012
Sometimes our db server goes in hanging condition. It does not save any transaction & user waits for long. When I restart, it starts working fine.What should I do, I mean regarding diagnosis & performance tuning.
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Mar 2, 2011
In Process of upgrading Oracle EBS 12.0.4 to 12.1.1 I updated the $IAS_ORACLE_HOME/appsutil/jdk to jdk 6u24. After replacing the original jdk with jdk 6u24 when I attempted to start the apps adoacorectl.sh failed with below error.
Quote:ld.so.1: /d4/app/oracle/apps/12.0.0/vdd700/web/10.1.3/appsutil/jdk/bin/java: fatal: libjli.so: open failed: No such file or d
irectory
I followed below steps to update the jdk
1. extracted the jdk-6u24-solaris-sparcv9.tar.Z to $IAS_ORACLE_HOME/appsutil/jdk
2. Copied lib from old jdk to $IAS_ORACLE_HOME/appsutil/jdk
3. Copied lib from oldjdk/jre to $IAS_ORACLE_HOME/appsutil/jdk/jre
4. The java was not infact in jdk/bin rather it was /bin/sparcv9 so I copied them to /jdk/bin. The same way copied the executables from /jdk/jre/bin/sparcv9 to /jdk/jre/bin .
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Aug 17, 2010
I have some requirement wherein I need to install Oracle 9i database server (9.2.0.7). I am not getting it on Oracle website. where can I get the download.
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Aug 12, 2010
We are using oracle 10g in linux machine which runs as server. And there are around 25 clients which run at the same time parallel to each other. I am new to oracle 10g and also for client-server version of database. I faced some problems when i first put the server into actual use.
-> Users have been created and tablespace is USERS and temporary space is TEMP. RESOURCE privilege is given.
-> Some times login fails for some clients.
-> Some times all the client login will be successful.
-> Query execution will be sometimes fast, but some times it takes too much time.
-> Some times the connection will be lost and again I have bring UP the server.
to maintain the oracle server.
-> Should I have to make any configuration settings in the server.
-> Should I change any values in the server.
-> Is there any way to properly maintain the server.
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Apr 1, 2012
We have changed the SYSDATE to 03-FEB-1994 in our AIX machine where oracle11g database is running. Once the sysdate is changed db and listner are getting down immediately and its generating the core in $ORACLE_HOME/dbs
This AIX machine is for PT test and as per one requirement we are changing the sysdate. Moreover, we found that database is getting down if we change the sysdate till 1999. If we change the sysdate to 2000, then we are not seeing any issue.
Below point is for additional info. After changing the sysdate and trying to connect to the db user, we are getting the below issue.
$ sqlplus '/as sysdba'
Segmentation issue (Core dump)
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Mar 25, 2010
oracle in not available
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Mar 10, 2010
I just found a numbers of ORA-609 and ORA-28 errors on my alertlog.Below are the entries in alertlog:
Quote:Tue Mar 09 18:10:24 2010
ORA-28 : opiodr aborting process unknown ospid (12001_47047336410272)
Tue Mar 09 18:10:31 2010
Incremental checkpoint up to RBA [0x41.198f30.0], current log tail at RBA [0x41.1a1b9c.0]
Tue Mar 09 18:12:57 2010
ORA-28 : opiodr aborting process unknown ospid (14226_47197045968032)
Tue Mar 09 18:30:32 2010
Quote:
opidcl aborting process unknown ospid (25530_47806448188576) due to error ORA-28
Quote:Fatal NI connect error 12537, connecting to:
(LOCAL=NO)
VERSION INFORMATION:
TNS for Linux: Version 11.1.0.7.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 11.1.0.7.0 - Production
[code]....
what might be the problem ? Why these errors are coming? Up to my knowledge nobody is killing any sessions.
Are the users getting aborted automatically? or is this a bug ?
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Jul 16, 2013
I have an Oracle DB's charset configured for Korean language and things in there are English and Korean and they are working fine. If i try to import a txt file with Chinese characters into the DB. It doesn't show correctly on query.
Is there any way I can solve this ? Since I find that there are many charset / NLS language options througout DB. I read from others that they have the following response. Any alternative beside changing the whole DB charset ?
Recreate the database with the correct character set
Convert the database to AL32UTF8. Documentation link
Change the databases National Character Set to AL32UTF8 & change your application to use NVARCHAR2()/NCHAR() datatypes instead of VARCHAR2() (documented at the same link as above)
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Jun 7, 2013
I am trying to upgrade and 64bits Oracle database from 11.2.0.2 to 11.2.0.3.0 (after that ill install .6) But when i try to upgrade the binaries, i get a message that does not find the instance to upgrade.If i skip that msg and try to upgrade the binaries only, i get another one message that in that ORACLE_HOME there are another binaries installed and it forces to choose another directorie.Then i try to set my enviroments variables using . oraenv but (as oracle owner) i don't have permissions over . oraenv.
That's make me think that someone does a bad installation then i tried to fix it using $ORACLE_HOME/install/changePerm.sh and i did not found it (after searching on metalling i found the note 834626.1 that says that in Oracle 11 there is not anymore changePerm.sh. Originally i moved 11.2.0.2 binaries to another directory and installed (after changing the loc on xml of the oraInventory) and installed the 11.2.0.3 binaries in my old ORACLE_ HOME and imported init, listener, tnsnames and works fine. But there are a lot of databases with the same problems and i don't wanna use the same workaround.
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Dec 28, 2012
I have been trying to upgrade my personal laptop with 11G from 10G. Since I didn't had any important data, so i removed 10G and tried to go for a fresh install of 11G.
Below are the entries of my files:
Listener.ora
# listener.ora Network Configuration File: C:appNikproduct11.2.0dbhome_1NETWORKADMINlistener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = ORCL.WORLD)
(ORACLE_HOME = C:appNikproduct11.2.0dbhome_1)
[code]........
If i start the database in no mount it doesn't give any error. Once I try to mount it, it gives the following error:
SQL> alter database mount
2 ;
alter database mount
*
ERROR at line 1:
ORA-00205: error in identifying control file, check alert log for more info
SQL> show parameter control;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time integer 7
control_files string C:APPNIKPRODUCT11.2.0DBHO
ME_1DATABASEORA_CONTROL1.CTL
, C:APPNIKPRODUCT11.2.0DB
HOME_1DATABASEORA_CONTROL2.C
TL
control_management_pack_access string DIAGNOSTIC+TUNING
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May 2, 2012
Currently, We are running oracle 11.2.0.1 on Linux server. There are 32 DB instances on this server. As per requirement, we need to install 11.2.0.2 DB on the same server. Is it advisable to have both 11.2.0.1 and 11.2.0.2 databases on the same server with different ORACLE_HOME.
How about ORACLE_BASE?? OR, do we need to upgrade all the DB's from 11.2.0.1 to 11.2.0.2. During the upgrade process, if i need to take backup with exp/imp utility, what is the best way to take 32 DB's backups instead of taking each DB backup at a time?
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Nov 8, 2010
steps required to upgrade oracle db from 11.1.0.6 to 11.2.0.1.
Is it a single step or i need to patch it to 11.1.0.7 then upgrade it using dbua to 11.2.0.1?
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Dec 17, 2010
I have installed the Oracle 10g software and created Database my own in RHEL 4. i got the emp tables when i run @?/rdbms/admin/utlsampl.sql with main user system. After i created another user test and i tried to get the tables. but im getting error like table not exist.
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Feb 23, 2010
Currently installed 8.1.7.0 .i want to upgrade to 10.2.0.1.0 in the upgrade documentation its written the direct upgrade is not supported for 8.1.7.0, first update to 8.1.7.4 and then direct upgrade to 10.x.
unable to find 8.1.7.4 update.any link to find update or guideline to direct upgrade to 10.x.
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Aug 19, 2010
We're thinking of moving from 10.2.0.3 to 10.2.0.5 in our production Oracle RAC. The 10.2.0.5 patch is quite new and I was wondering if any of you have upgraded to this patch in any of your environments and if you experienced any issues afterwards?
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