Oracle 11g Backup and Recovery

Hi ,
Please let me know which is the best book for Backup and Recovery perferbable RMAN which also include Oracle 11G fundamentals for recovery .
Looking forwrad for your responsce ..
Thanks
Nitin

rajeysh,
I do agree with you on the book and the online docs but nowadays i do think that the oracle online documentation could have wrong or misplaced information. So reading the online documentation along with a book that has some hands on experience parameters should be the best solution. Also you can support the knowledge by searching the internet.
Regards.
Ogan
Edited by: Ogan Ozdogan on 19.Ağu.2010 13:46
Dear 789393,
What you can possibly do is go to the amazon and search for RMAN. See the results and search web and comments about those specific books. You can purchase whichever you want that meets the criteria of yours.
Regards.
Ogan

Similar Messages

Oracle 10g backup and recovery

Hi
Can you guys give me some resource of oracle 10g backup and recovery. I want to learn about oracle 10g backup+recovery. Plz help

Best resource is Backup and Recovery guide from Oracle document site.
Backup and Recovery Advanced User's Guide
http://download-west.oracle.com/docs/cd/B19306_01/backup.102/b14191/toc.htm

Need help on Oracle manual Backup and Recovery?

Dear Gurus,
I want to study Oracle manual Backup and Recovery(without RMAN) in detail.
Is there any book or site, which describes more scenarios and explanation on manual backup and Recovery(without RMAN)
Regards
Sanjeev

user12868781 wrote:
Dear Gurus,
I want to study Oracle manual Backup and Recovery(without RMAN) in detail.Why?
My car has a flat tire. The manufacturer packed a spare tire, jack, and lug wrench in the trunk of the car at no additional cost, and described the process in the owners manual. I want to replace the flat tire without using any method other than the one involving the use of the tools designed for and provided for the job.
Is there any book or site, which describes more scenarios and explanation on manual backup and Recovery(without RMAN)
Regards
Sanjeev

Error in Oracle Database Backup and Recovery User's Guide 12c Release 1 (12.1) E17630-13

on page 88 of the "Backup and Recovery User's Guide 12c Release 1 (12.1) E17630-13", the example 5-1 SHOW ALL Command is the same of the "Backup and Recovery User's Guide 11g Release 2 (11.2) E10642-06" on page 82 and that output is related to a Oracle Database 11g version (the 10g doesn't print the first line "RMAN configuration parameters for database with db_unique_name PROD1 are:").

My test cases here:
Database administrator workshop: Differences in default RMAN configuration settings between 12c and 11g
{code}[oracle@vsi08devpom ~]$ export ORACLE_SID=CDB001
[oracle@vsi08devpom admin]$ sqlplus system/oracle@CDB001
SQL*Plus: Release 12.1.0.1.0 Production on Thu Sep 26 09:10:50 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Last Successful login time: Tue Jul 16 2013 13:43:48 +02:00
Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
SQL> show con_name
CON_NAME
CDB$ROOT
[oracle@vsi08devpom ~]$ rman target /
Recovery Manager: Release 12.1.0.1.0 - Production on Thu Sep 26 09:12:42 2013
Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved.
connected to target database: CDB001 (DBID=4134963396)
RMAN> show all;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name CDB001 are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE RMAN OUTPUT TO KEEP FOR 7 DAYS; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/opt/app/oracle/product/12.1.0/db_1/dbs/snapcf_CDB001.f'; # default{code}
{code}
[oracle@localhost orcl]$ rman target /
Recovery Manager: Release 11.2.0.2.0 - Production on Wed Sep 25 08:12:17 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=1229390655)
RMAN> show all;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name ORCL are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE SBT_TAPE TO '%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE SBT_TAPE TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE SBT_TAPE TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/home/oracle/app/oracle/product/11.2.0/dbhome_2/dbs/snapcf_orcl.f'; # default
{code}

Oracle 11i backup and recovery!

Hi to all OracleForum fanatics..
can anyone help me to create and execute backing up and recovery
in oracle application 11i with 9.2.0.6 database..
Im newbie in oracle apps.. thanks
Cheers! BJCDR

Hello,
You might review the following threads;
Backup Oracle Applications (11.5.10.2)
Re: Backup Oracle Applications (11.5.10.2)
Reommended backup and recovery startegy for EBS
Re: Reommended backup and recovery startegy for EBS
Adith

Oracle database backup and recovery in 9i

Dear Oracle team, Iam facing problems in taking backups,
import, export are not working at command prompt and also while I tried to take help of that command usage, it is showing no exp, imp was not found and also I tried with oracle enterprise manager console by servermode, using the backup wizard, but the dump created by oem, I am unable to locate, please give vivid picture of that and give demonstration on that.
with Regards,
narasimham.

can u be more specific abt the procedure that u r following. Simply write EXP in RUN and the EXP prompt will appear.
for furthur assistance feel free to ask.
best regards

Oracle Backup and Recovery 101: where can I get more information?

Hey everyone. I'm a pretty new Oracle DBA and backup and recovery is something I want to learn as much about as I can.
I read a blog about "how to be a good DBA" and it really drove home the importance of backups. I know how important they are, I just want to learn more.
What I mean is, I understand a lot of the high level concepts. It is pretty much straight forward. What I am looking for is something that really goes down in the internals of what is going on behind the scenes so I know what is going on.
I thought it would be extremely beneficial for me to learn about user backups. Granted, RMAN is the direction my company is heading to, but right now, we are doing user made backups. My thinking is that if I can get a solid grip and understanding of backup and recovery, user made backups, it will make the transition to RMAN much easier. That way, when I am working in RMAN, issue a command to do backup, I know the equivalent of a user backup and what is going on.
I hope that makes sense.
Is there a recommended book that goes over backup and recovery in depth?
I'd like to learn about all the user-made backup commands that can be executed at the command line (example, putting a tablespace in backup).
Since backups are essential to the life of a DBA, I thought the more I know, the better off I would be.

You can always find good information from Oracle document site,
Oracle® Database Backup and Recovery Basics
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/toc.htm
Oracle® Database Backup and Recovery Advanced User's Guide
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/toc.htm
User managed backup is quite different from RMAN backup. For RMAN backup you need to get familiar with the RMAN command syntax and configure.

Backup and recovery oracle XE

Hi, oracle guru.
I have searched in google how to backup and recover to and from removable disk or hard disk (in separated folder) in oracle XE 10g, but I didn't found any.
I tried to use backup and recovery database given from oracle itself, and I analyze which file is added and modified. I do somekind of trial and error action. First, I backup my database and then I copy 2 files (I forgot the names, 1 is about 853 kb, and one is the backup file (about 500 mb)). And then I do some user deletion (I have several users) and then I backup and copy again to different folder from the previous one. Note that I am not using archive log: on.
Unfortunately, when I copy the previous backup (the one with complete users) to oracle folder, the restore database does work until, I guess starting database, it throws error saying that something error in SYSTEM.DBF, thus making my oracle doesn't work, even I canot go to database home page.
My question is that how to backup and recover database to and from removable disk or harddisk with different folder? Which files do I need to copy or should I add backup and recover script?
Thanks for the reply.

Yes, as I already mentioned, previously (assumes) that I have database with several users (say 5 users). And I use backup database and restore database from oracle folder in start menu, and it works perfectly (assuming that I delete one user and then restore database).
However, I tried to copy the backup file (which I mentioned before, but I am not sure the files I am copying is backup file since I only analyzed it). So, I test it. First I backup, and I copy to separate folder. Next, I do some user deletion, and I do backup. Say, for example I want to use that backup file in another computer. I copy the files to oracle installation folder. One in product/database/ folder, and one in flash-recovery area. When I try to use restore database (in start menu), it works, until, I guess, starting database, and it throws error saying that error in SYSTEM.DBF.
So, my point is that, how do I backup my database so that the backup file can be in separated folder (for example in removable disk), thus I can also select backup file to be restored.

Backup and recovery questions

Hi,
I am a newbie in Oracle database 11g Release 11.2.0.1.0 and Oracle Linux and I have questions regarding backup and recovery.
I used the “Schedule Oracle-Suggested Backup” and have it run nightly to back up to local disk. In the Backup Setting, on the Retention Policy, I selected “Retain backup that are necessary for a recovery to any time within the specified number of days (point-in-time recovery) day = 7”
With the setting above, I checked the “Manage Current Backups” and I have many back sets for SPfiles, controlfiles, datafiles, and archivelogs for the last several days. However, for image copies, I have only one set and it get over write nightly. With the configuration above, is that true that I can only recover to any point in last 24 hours?
My goal is to be able to recover any “point-in-time” in the past 5 days, should I change my Retention Policy to “Retain at least the specified number of full backups for each datafile” to 5 backups (each full daily backup)? Please provide some advices. Thanks

By looking the following, it looks like by default its 24 hours but it depends upon the recovery window you choose.
Enterprise Manager makes it easy to set up an Oracle-suggested backup strategy for backups to disk that protects your data and provides efficient recoverability to any point in the a recovery window of your choosing. (In the simplest case, examined in this section, this window is 24 hours.) The Oracle-suggested strategy leverages Oracle's incremental backup and incrementally-updated backup features to provide faster backups than whole database backups, and faster recoverability than is possible through applying database changes from the archived log to your datafiles.
The Oracle-suggested backup strategy is based on creating an image copy of your database. This copy is rolled forward by means of incrementally updated backups. Oracle Enterprise Manager schedules RMAN backups jobs for you to run during the overnight hours.
For each datafile, the strategy calls for backups as follows:
At the beginning of day 1 of the strategy (the time the first scheduled job actually runs), an incremental level 0 datafile copy backup. It contains the datafile's contents at the beginning of day 1. In a restore-and-recovery scenario, the redo logs from day 1 can be used to recover to any point during day 1.
At the beginning of day 2, an incremental level 1 backup is created, containing the blocks changed during day 1. In a restore-and-recovery scenario, this incremental level 1 can be applied to quickly roll forward the level 0 backup to the beginning of day 2, and redo logs can be used to recover to any point during day 2.
At the beginning of each day n for days 3 and onwards, the level 1 backup from the beginning of day n-1 is applied to the level 0 backup. This brings the datafile copy to its state at the beginning of day n-1. Then, a new level 1 is created, containing the blocks changed during day n-1. In a restore-and-recovery scenario, this incremental level 1 can be applied to the datafile rolled forward on day n-1 to the beginning of day n, and redo logs can be used to recover the database to any point during day n.
The datafile copies used in the Oracle-suggested backup strategy are tagged with the tag ORA$OEM_LEVEL_0. The level 1 incremental backups for use in this strategy are created for use with datafile copies that are so labelled. You can safely implement other backup strategies without concern for interference from the backups for the Oracle suggested strategy.
There are also Oracle-suggested strategies that use tape backups along with disk backups, but those are beyond the scope of this chapter.

Logical backup and recovery using export/import

Hi,
Anyone provide me the clear steps and command to take logical backup and recovery using the import and export method...??.
im using oracle 9i database and redhat linux server version 4.0.........???.
thanks,
vasanth.......

user12864080 wrote:
Hi,
Anyone provide me the clear steps and command to take logical backup and recovery using the import and export method...??.
im using oracle 9i database and redhat linux server version 4.0.........???.
thanks,
vasanth.......Vasant,
Though you have got links already for using the exp/imp , I would strongly suggest that when you mention backup/recovery, RMAN is the tool that you should be using. Exp/imp is/was never considered as a backup tool. You should read this paper to get the answer of "why rman" ?
http://www.evdbt.com/TD_Rman.pdf
Aman....

Issue with backup and recovery of WLS

I have installed WLS 10.3.6 in my 64-bit Linux box, now I am trying to take backup my server. I have a web-application deployed to my WLS, the path to my war file was something like:
<home_dir>/install_files/myapp.war
Now to take backup I ran tar command on my current Linux box, now I copied the .tar files to my new Linux box and extracted it. When I am starting my weblogic server it is looking for the war file from the path <home_dir>/install/myapp.war which does not exist on my new machine. So I logged into Admin console of WLS on my new machine and trying to change the path for myapp.war by clikcing update button. But I am getting this error when I change the path:
weblogic.management.ManagementException: [Deployer:149007]New source location, '/u01/Oracle/install_files/myapp.war', cannot be deployed to configured application, 'myapp'. The application source is at '<home_dir>/myapp.war'. Changing the source location is not allowed for a previously attempted deployment. Try deploying without specifying the source.
Update operation failed - no deployments changed.
Please help me how to deploy my files. I'm expecting backup and recovery option should also take care of deployed files but it is not happening in my case, is that wrong?

1. There is no specific order, but last to go down should be CMS and first to come up should be CMS.
@echo off
Stop Business Objects Services
echo
net stop "BOBJCrystalReportApplicationServer"
net stop "BOBJEventServer"
net stop "BOBJProgramServer"
net stop "BOBJOutputFileServer"
net stop "BOBJProcessServer"
net stop "BOBJInputFileServer"
net stop "BOBJDestinationServer"
net stop "BOBJCrystalReportspageserver"
net stop "BOBJJobServer_Report"
net stop "BOBJCentralMS"
exit
Similarly to Start services, instead of stop use start and put CentralMS at the top and save it as a batch file.
2. Jobs running when the server goes down will fail, other recurring jobs will wait till the server comes up.
3. Yes, backup File Store & Database.
4. Not sure about the default password for My SQL, you should be able to backup the MySQL database, I have done that once.
5. Backup FileStore & Database.

Need clarification for cold backup and recovery

Hello Everyone ..
I have much confusion on cold backup and recovery topic.
Already i posted a scanario regarding this and i want to know some clarity points to understand.
1. I had cold backup two days before
2. I am creating an object *(EMP)* and inserting some records then issue log switch continiously.
3. Manually i removed all physical files (datafiles , control files , log files , redolog files ...)
4. then i issued STARTUP FORCE MOUNT;
5. here i am getting error identifying control file.
6. cold backup two days before all files restored
6. then i issue recover database using backup controlfile until cancel;
7. i am trying to issue select * from emp; i am getting error
select * from emp
*ERROR at line 1:
ORA-00942: table or view does not existMy QUESTION IS
After cold backup finished , i created emp table ..
when restoring old back " There is no emp table"
*- then , can i recover emp table ? - If so , please explain about this ..*
Note : REF - LINK https://forums.oracle.com/forums/message.jspa?messageID=11056341#11056341
- Above link says what i did ? . In this thread i am asking concept & logic ..
please do NOT consider as "*DUPLICATE*"

When you recover the database using backup controlfile until cancel, you have to apply archived logs. Did you apply all of them?
If the create command was in the online redo, not yet archived, and you lost the online redo, then you won't have it. This is why you want to have redo multiplexed, it is a critical piece.
In some recovery scenarios, if you haven't lost the online redo, you need to specify those files as if they were archives.
It is normally easier to just be sure you have the latest controlfiles and let Oracle figure it out automatically (which is why you want to use online RMAN backups rather than cold backups). But yes, it is important to understand what is going on for different scenarios. I used to have manual standbys, and one of the disaster instruction sets explained to try to get online redo over to the standby to lose as few transactions as possible. That could still be useful for some snapshot hardware type scenarios, assuming the business is too cheap to do proper failovers.

BACKUP AND RECOVERY USING RMAN

제품 : ORACLE SERVER
작성날짜 : 2003-08-04
BACKUP AND RECOVERY USING RMAN
==============================
1. Backup Method
1.1 backing up in noarchivelog mode
SVRMGR> shutdown;
SVRMGR> startup mount
rman을 가동시킨 후 다음을 수행
run {
# backup the database to disk
allocate channel dev1 type disk;
backup (database format '/oracle/backups/bp_%s_%p'); }
1.2 Backing up databases and tablespaces in archivelog mode >
- database 단위 backup script
run {
allocate channel dev1 type 'sbt_tape';
backup skip offline (database format '/oracle/backups/%d_%u');
release channel dev1;
- tablespace 단위 backup script
run {
allocate channel dev1 type disk;
backup
(tablespace system,tbs_1,tbs_2,tbs_3,tbs_4,tbs_5
format '/oracle/backups/bp_%s_%p');
- datafile 단위 backup script
run {
allocate channel dev1 type disk;
backup
(datafile '?/dbs/t_dbs1.f'
format '/oracle/backups/%d_%u');
- control file backup script
control file은 system datafile의 첫번째 화일을 백업받을 때 백업되며 다음과
같은 방법으로도 백업받을 수 있다.
run {
allocate channel dev1 type 'sbt_tape';
backup
(tablespace tbs_5 include current controlfile
format '%d_%u');
- archived logs backup script
NLS_LANG=american
NLS_DATE_FORMAT='Mon DD YYYY HH24:MI:SS'
run {
allocate channel dev1 type 'sbt_tape';
backup
(archivelog from time 'Nov 13 1996 20:57:13'
until time 'Nov 13 1996 21:06:05'
all
format '%d_%u');
run {
allocate channel dev1 type 'sbt_tape';
backup
(archivelog low logseq 288 high logseq 301 thread 1
all delete input
format '%d_%u');
- copying datafiles
run {
allocate channel dev1 type disk;
copy datafile '?/dbs/tbs_01.f/dbs/tbs_01.f' to '?/copy/temp3.f';
- incremental backups
새로운 데이타화일이 추가되거나 테이블스페이스가 추가된다면 level 0의 backup을
반드시 수행한다.
run {
allocate channel dev1 type 'sbt_tape';
backup incremental level 0
(database
format '%d_%u');
run {
allocate channel dev1 type 'sbt_tape';
backup incremental level 1
(database
format '&d_%u');
2. Recovery Method
- tablespace recovery
run {
allocate channel dev1 type disk;
allocate channel dev2 type 'sbt_tape';
sql "alter tablespace tbs_1 offline immediate" ;
set newname for datafile 'disk7/oracle/tbs11.f'
to 'disk9/oracle/tbs11.f' ;
restore (tablespace tbs_1) ;
switch datafile all ;
recover tablespace tbs_1 ;
sql "alter tablespace tbs_1 online" ;
release channel dev1;
release channel dev2;
- point-in-time recovery
TBS_1 테이블스페이스는 두 개의 데이타 화일 소유. TEMP1은 백업이 없으나 user
data는 없는 temporary segemnt만 가지고 있음.
NLS_LANG=american
NLS_DATE_FORMAT='Mon DD YYYY HH24:MI:SS'
SVRMGR> shutdown abort;
SVRMGR> startup nomount;
run {
# recover database until 3pm after restoring tbs_1 to a new location
allocate channel dev1 type disk;
allocate channel dev2 type 'sbt_tape';
set until time 'Nov 15 1996 15:00:00'
set newname for datafile '/vobs/oracle/dbs/tbs_11.f'
to '?/dbs/temp1.f' ;
set newname for datafile '?/dbs/tbs_12.f'
to '?/dbs/temp2.f' ;
restore controlfile to '/vobs/oracle/dbs/cf1.f' ;
replicate controlfile from '/vobs/oracle/dbs/cf1.f';
sql "alter database mount" ;
restore database skip tablespace temp1;
switch datafile all;
recover database skip tablespace temp1;
sql "alter database open resetlogs";
sql "drop tablespace temp1";
sql "create tablespace temp1 datafile '/vobs/oracle/dbs/temp1.f' size 10M";
release channel dev1;
release channel dev2;
- 전체 데이타베이스를 복구하려 할때
current redologfile이 존재할때 다음과 같은 작업으로 전체 데이타베이스를 복구할
수 있다.
replace script restore_recover_db_cf {
execute script restore_cf;
sql 'alter database mount';
execute script restore_db;
execute script recover_db;
sql 'alter database open resetlogs';
replace script alloc_1_disk {
allocate channel d1 type disk;
setlimit channel d1 kbytes 2097150 maxopenfiles 32 readrate 200;
replace script rel_1_disk {
release channel d1;
replace script restore_cf {
execute script alloc_1_disk;
restore
controlfile to '/private/db_files/twih/dbf/ctrl_twih_1.ctl';
replicate
controlfile from '/private/db_files/twih/dbf/ctrl_twih_1.ctl';
execute script rel_1_disk;
replace script restore_db {
execute script alloc_1_disk;
restore
(database);
execute script rel_1_disk;
replace script recover_db {
execute script alloc_1_disk;
recover
database;
execute script rel_1_disk;
Reference Documents
<Note:104796.1>

Hi Alok,
why there is a need for standby here? you mean to say standby db?
what i exactly need is , whether i will be making use of archivelogs which are all archived during that backup period (in mount stage) after some days, if i face any problem with the PRODUCTION Database..

Making data in tables online and offline - Backup and Recovery

Hi All,
I'm working on a project where the functionality is similar to 'Backup and Recovery' for database tables.
Lets say we have a set of 6 tables T1, T2.... T6. They do have relationship between them. The tables in questions are simple standard tables, which are not table partitioned.
- I want remove the records from live tables based on user entered date ranges and store it in some offline medium.
- I might want make the data online again from the offline medium; Application should be able use that data without any modifications.
- Different offline mediums can be
a) Flat file
b) Different table space
c) Any other secondary medium (like XML, tape..Etc,)
The total number of records will run in millions.
The proposed solution should consider,
1. Performance - Java solutions not feasible. Anything in SQL, PL/SQL or runs in DB itself(tools) are OK.
2. Reliability - Should be highly reliable, Data corruption simply unacceptable.
3. Security - Users should not be able to make out of the file.
Few options include:
1. Use partition
2. Use SQL*Loader
3. Export and import of tables.
My main targets:
1. Reduce space.
2. Increase performance for queries.
Please pass on your suggestions, any help is highly appreciated!
Thanks In Advance!

Few points to note:
1. I agree partition would be right solution, but as I mentioned in my earlier statement, 'The tables in questions are simple standard tables, which are not table partitioned.'. The tables right now are not partitioned and I believe we cannot add/modify partitions, if the table were not created with the partition option. One work around is to build a partitioned table and copying all the properties(indexes,rows,constraints) from the existing non-partitioned table. But I suspect this is highly riskier and we can't afford to it.
2. I need to support Oracle database versions starting from 8.0.6.
3. Flat file is mandatory, others are optional. I can restrict our discussion just for a file.
4. Considering the above points, the only option I could think of is I can move the records from the table to flat file and remove from tables. When required rollback the file data to the table and application would be able to use it. For export/import few options are: SQL*loader, exp/imp utilities, PL/SQL file UTL packages
Thanks In Advance

Which one is the Best Backup and Recovery Method in your point of view?

Friends,
Currently we are taking hot backup with archive mode.
we have backup script to copy the datafile and we will copy the archive files in a separate folder.
alter tablespace system begin backup;
host cp /u01/app/oracle/oradata/livedb/system.dbf /u02/online_backup
alter tablespace system end backup;
like the above script we will copy all the other data files.
then in the test environment. we will copy the datafile and archive file.
we will be recovering by using the below statement.
sql>recover database until cancel using backup controlfile.
currently no problem in backup and recovery.
What i want is......
is there any other sophisticated and safe way to take a backup and restore it to another server?
if yes, can anybody point out the steps or link.
I have heard about......
DataGuard
RMAN
EXP/IMP
but i never used the above.
Thanks
sathyguy

DataGuard
RMAN
EXP/IMP ...
The only real backup/recovery method here is RMAN, Oracle's integrated backup/recovery tool, which I prefer. As an example for a fully functional RMAN command see 'backup database plus archivelog delete all input'. This statement provides a complete hot database backup including archivelogs and deletes at the successful end all archivelogs in all destinations . Compare this statement with all the steps necessary to do the same job manually. Don't worry you have many ways to finetune your backup.
For more informations there's a quick start guide:
http://download-uk.oracle.com/docs/cd/B19306_01/backup.102/b14193/toc.htm
Dataguard is a high availibility tool, which provides a kind of backup in terms of having a logical or physical standby database. When primary side fails you can switch to this standby database. Such a constellation does not mean, database backups are no longer necessary.
Export/Import is a logical backup, still often used to recover from human errors (you accidentally dropped a table for example). Don't use it as a replacement for physical backups, especially hot backups,in case of media failures you always will have loss of data, because changes made afterwards the export are not captured.
Once again I recommend you seriously should consider RMAN.
Werner

Oracle 11g Backup and Recovery

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