Data Guard :: How To Change Logical Database Primary To Logical

Jun 9, 2011

We have 2 node (n1 nad n2 ) RAC and 3rd node (n3) with Dataguard logical database for reporting ..

1. logical database (n3) not syn with primary (n1,n2)
2. During repair above mentioned problem by mistake my logical(n3) also become primary
3. now how I will again change my n3 to logical
4. I got following error

RE: ORA-16009: remote archive log destination must be a STANDBY database



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Data Guard :: Can A Logical Database Be Applied From A Physical Standby

Jul 25, 2013

I have a setup where i have one physical and logical standby from a primary database. In case of switch over between primary and physical database my logical apply gets stopped. Can a logical database be applied from a physical standby ?

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Data Guard :: Implement Logical Standby Database For Reporting Purposes

Apr 14, 2010

I working on a Production Environment, where our Database is running on a IBM-AIX platform.I need to implement Logical standby database for reporting purposes, in order to improve the performance.Now the transaction and the reporting is done at the same site itself.I want to know that, operating system and platform architecture (RAM size, no. of CPUs, ORACLE_HOME etc..) on the primary and standby systems must be same or can be different. complete configuration for Dataguard. My os version is,

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for IBM/AIX RISC System/6000: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production

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Data Guard :: Apply Patches On Oracle Database With Logical Standby Database?

Apr 22, 2011

I got a primary database with a logical standby database running Oracle 11g. I got two client applications, one is the production site pointing to the primary one, another one is just a backup site pointing to the logical one.Things will only be written into the primary database every mid night and client applications can only query the database but not add, update nor delete.And now, I want to apply the latest patch on both of my databases. I am also the DNS administrator, I can make the name server pointing to the backup site instead of the production one.I want to firstly apply the patch on the logical one, and then the physical one.

I found some reference which explains how to apply patches by adopting "Rolling Upgrade Method". however, I want to avoid doing any "switch over" mentioned in the reference because I can make use of name server. Can I just apply patches as the following way?

1)Stop SQL apply
2)Apply patches on logical standby database
3)let the name server point to the backup site
4)Apply patches on the primary database
5)Start SQL apply
6)Let the name server point back to the production site

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Data Guard :: Windows To Aix (logical)

Oct 18, 2010

I have a Windows 2003 server with Oracle 10.2.03 database residing in one datacentre, with Dataguard configured to a physical standby in a similar location (proven process that works great).

I now have a requirement to transfer and synchronize the same live database to a database in a different country (AIX box), purely for data purposes not failover etc. I can transfer an export of the Database and have this up and running as a logical database of the live on AIX, but is it then possible to configure dataguard on the Windows server to also send updates to this logical database on the AIX system? Thus keeping them in sync with each other?

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Data Guard :: Oracle 9i Logical Standby

Feb 28, 2012

There are two servers.one in HP-UNIX and another is solaris.

I would like to configure a logical standby using oracle 9i...Is it possible in 9i?

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Data Guard :: Convert Logical To Physical Standby?

Oct 9, 2012

Can we convert a logical standby to physical standby? Yes or No, if yes how ..

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Data Guard :: How To Skip Delete On Logical Standby

Oct 11, 2013

On next month i will have plan to delete history data on my Primary database, but i still want to keep them in logical standby as the data warehouse. So, how can i skip delete statement from primary database apply to logical standby.

Oracle SQL apply only support for Skip DML but not for keep delete statement

(on 10g and 11g)SQL>exec dbms_logstdby.skip(statement => 'DELETE',schema_name => 'SCOTT', object_name => 'DEPT');BEGIN dbms_logstdby.skip(statement => 'DELETE',schema_name => 'SCOTT', object_name => 'DEPT'); END;  *ERROR at line 1:ORA-06550: line 1, column 7:PLS-00306: wrong number or types of arguments in call to 'SKIP'ORA-06550: line 1, column 7:PL/SQL:

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Data Guard :: Logical Standby On Windows Server 2008

Sep 8, 2010

Can i create logical_stand_by for windows server 2008, the primary data base is HP UX , both operating systems are 64 bits and data bases are Oracle 10g 10.2.0.1.0.

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Data Guard :: RAC To Single Instance Logical Standby Creation

Jul 24, 2012

I am not able to find any document that shows steps to create a SINGLE INSTANCE LOGICAL STANDBY database for a 2 NODE ORACLE RAC database. I have found documents for RAC to Single Instance Physical standby database. But not for Logical Standby.

Details:

OS: Redhat 5
DB: 10.2.0.4(shared file system, not using ASM/Standby also file system)
Status: Single instance physical standby database created, need to convert it to Logical standby.

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Data Guard :: Restoring Logical Standby Rman Backup On Production

Oct 9, 2012

I have One Production and one logical standby database . Due to tape problem we are unable to take backups of primary . And due to business , we cannot take back up on disk in hot period(Bank database ) .

If i take logical standby database backup(level 0 ) using RMAN , then will i be able to restore it on production dtbs (In case Production down) ? . Logical standby is in sync with primary .

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Data Guard :: Change Some Parameters On Primary Database?

Sep 29, 2012

I am going to change some parameters on primary database (db cache, java pool etc.). I am not sure, if the changes are automaticallly propagated to standby or if I have to make the changes manually on stanby site too? I couldn't find clear answer in documentation. how parameter changes work in dg physical configuration?

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Data Guard :: Change Instance Parameter Of Primary Database And Standby

Nov 29, 2011

I have a requirement to change the instance parameter of the primary database and standby in the data guard. Any procedure to do the same. I have to do it directly on production and there is no test set up so I cannot experiment . The procedure I am thinking of is as below.

1. Stop the standby

2. backup the primary

3. Change the parameter and restart to make it effective

4. Start the primary

5. Go to stand by

6. Change the parameter and mount the database.

7. Check if both are in sync and apply logs if not.

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Data Guard :: Change Server B To Standby Database With A Running As Primary

Oct 4, 2010

I new to data guard concept.

I am using oracle 10g with data guard configured , I have primary ( A ) and standby database ( B ) .But because of some unavoidable conditions the primary database ( A ) got shutdown and was not starting , We shifted the standby database ( B ) at new location and changed it to primary with following command ,

startup mount;
alter database recover managed standby database finish;
alter database commit to switchover to physical primary;
shutdown;
startup;

This new primary ( B ) was open for end users for 2 days during which old primary ( A ) was shutdown .

I took the backup of ( B ) and restored it on A AND shutdown the B . Now A is acting as Primary database. Server B is shutdown . I want to change server B to standby database with A running as Primary .Is it possible ?

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Data Guard :: Possible To Convert Logical Standby To Physical Standby

Aug 30, 2013

My steps for testing as below:

1.create a primary database
2.duplicate a physical standby database;
3.turn on flashback on both databases.
4.record SCN xxx on physical standby database.
5.convert physical standby to logical standby (using keep identity statement)
6.flashback to logical standby to xxx
7.convert logical standby to physical standby
8.using real time apply I got errors: Fast Parallel Media Recovery enabledManaged Standby Recovery starting Real Time ApplyMRP0:

Background Media Recovery waiting for new incarnation during transient logical upgrade procedure

Errors in file /home ora/ app/ oracle/ diag/ rdbms/ ora11gr1dg/ora11gr1dg/trace/ora11gr1dg_mrp0_10120.trc:ORA-19906: recovery target incarnation changed during recoveryManaged Standby Recovery not using Real Time ApplyErrors in file /home/ ora/app/ oracle/diag/ rdbms/ ora11gr1dg/ ora11gr1dg/ trace/ora11gr 1dg_mrp0_ 10120.trc:ORA-19906: recovery target incarnation changed during recovery  

Errors appears every 10 seconds. Seems MPR0 is waiting for new incarnation for a long time. So am I.Standby database incarnation:

List of Database IncarnationsDB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time-------1 1 ORA11GR1 3853851354 CURRENT 1 08/09/2013 01:02:182 2 ORA11GR1 3853851354 ORPHAN 2127877 08/28/2013 19:22:01     BGV

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Can Logical Database Be Applied From Physical Standby

Jul 24, 2013

I have a setup where i have one physical and logical standby from a primary database. In case of switch over between primary and physical database my logical apply gets stopped. Can a logical database be applied from a physical standby ?

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Logical Corruption In Oracle Database - Invalid RowID Error

Jul 30, 2012

I observed logical corruption in one of the database, while running select on some tables observed ORA-01410: invalid ROWID error. These errors or errors related to this logical corruption are not reported in alert log file.

Since our database is in NOARCHIVELOG mode and regular backups are not happening through RMAN (weekly cold mount point backup to tape),
i was not able to use RMAN to investigate block corruption.

So used DBVERIFY on all datafiles of database to check the consistency of datafiles, and found DBV gives error for one of the datafile - 'Completely zero block found during dbv:' As i mentioned earlier, we are not taking regular backups using RMAN and database is in NOARCHIVE mode.

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Data Guard :: Flashback Snapshot Standby Database Or New Primary Database After Failover?

Aug 30, 2013

If flashback is enable in physical standby database 1. If we failover at 11AM can I flash back NEW primary database to 6 AM ? 2. if I convert physically standby database to snapshot standby database at 11AM ,  Can I  flashback snapshot standby database to 6 AM and do some works on it (DML operations)  then   converting the snapshot standby database into physical standby database ?  

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Data Guard :: Switch (convert) Primary Database To Standby Database?

Jan 30, 2013

I have installed oracle 11g standard edition one and created both primary and standby database. now i want to know how to switch(convert) primary database to standby database.

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Data Guard :: Unable To Get Data Of Primary In Standby Database (dataguard)

Jan 16, 2013

i have configured physical standby in my local system, to check logshipping i created a table at primary db, wen i tried to check in standby, it says table does not exist..below are primary & standby alert entries..

Primary alert log

Fatal NI connect error 12514, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.98)(PORT=1522))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=STAND)(SERVER=dedicat ed)(CID=(PROGRAM=d:oracle11gappadministratorproduct11.1.0db_1inORACLE.EXE)(HOST=A960M)(USER=SYSTEM))(SERVER=dedicated)))
VERSION INFORMATION:
TNS for 64-bit Windows: Version 11.1.0.6.0 - Production

[code]....

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Data Guard :: Registering Primary Database To Catalog Database

Oct 9, 2012

Here we have a data guard environment with db1(db_unique_name) as primary and db2(db_unique_name) as physical standby database. Also we configured one schema on a third machine as catalog database using following steps. The steps executed in catalog database(appsdb):

SQL> create tablespace rmancatlog_tbs datafile '/u01/app/oracle/oradata/NEW/rman_catalog.dbf' size 500M autoextend off extent management local segment space management auto;

SQL> create user rman identified by oracle
2 default tablespace rmancatlog_tbs
3 quota unlimited on rmancatlog_tbs
4 ;SQL> GRANT connect, resource, recovery_catalog_owner TO rman;

RMAN> create catalog;
recovery catalog created

Added tns entries of catalog database in primary and standby. Then from primary database we tried to register to catalog database. It is showing that it is registering. But every query afterwards in rman is throwing the error. Below are the steps and error:

[oracle@db1 ~]$ rman target sys/oracle catalog rman/oracle@appsdb
Recovery Manager: Release 10.2.0.3.0 - Production on Mon Aug 13 21:39:32 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: NIOS (DBID=1589015669)
connected to recovery catalog database
[code]....

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Data Guard :: Unable To Get Data Of Primary In Standby Database

Jan 16, 2013

I configured dataguard in my local system.

1) scn differs wrt primary in standby (i checked, 1day difference), how to make scn same?

2)i created a table in primary, its not refelecting in standby, (below i ve pasted alertlog entries)

ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
Errors in file d:oracle11gappadministratordiag
dbmsstandstand racestand_dbw0_6916.trc:
ORA-01157: cannot identify/lock data file 2 - see DBWR trace file
ORA-01110: data file 2: 'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSAUX01.DBF'

[code]....

3)wen i try to open standby database in read only mode gives below error..

ERROR at line 1:
ORA-16004: backup database requires recovery
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1:
'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSTEM01.DBF'

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Data Guard :: Refresh Primary Using Standby Database?

Feb 2, 2013

I was using physical standby but my primary database had had some HW issue.So I had activated standby database to handle production.During 3 months, standby database was our live database and our old primary was unavailable.Now HW issue on primary has been fixed.And I want to set again my old configuration : means set primary and standby db.

I'm trying this :

1) check the SCN on old primary

2) Rman incremantal backup from scn

3) on primary db : catalog

4) on primary db : recover database noredo

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Data Guard :: Changing Password On Primary Database?

Nov 10, 2011

I'm using 2 databases : Primary and Standby DB. It working fine. I've just one question : I want to change SYS password on primary DB. Can I change it without any action on Standby DB?

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Data Guard :: App Archive Logs Which Come From Primary Database?

Feb 16, 2012

If my standby database is read only mode,does it can app the archive logs which come from primary database?

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Data Guard :: Upgrade Primary And Standby Database?

Apr 30, 2012

I have a primary and standby DB using data guard 10.2.0.3.I want to upgrade oracle to 11G.I know that primary and standby should have same version even if data guard will not work again.I want to know what is the steps by steps action to properly upgrade both DB : primary and Standby.

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Data Guard :: Shutdown Down In Primary Database In Environment

Jun 29, 2010

I have configured data Guard on oracle 11gR2. It is working fine. The only issue i am facing is that when i am stopping the database on the primary server, it is taking a long long time to down the database.

Is it normal?

Furthermore, regarding backup i used veritas Netbackup to perform hotbackup. Can i still used the same principle.

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Data Guard :: Changing Redo Log Folder On Primary Database

Mar 3, 2012

I want to replace one redo log on the primary database. actually this redo log is on G:oracleoradata; I want to move it on F:oracleoradata. How to do that cause the same redo log is also on standby database?

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Data Guard :: Check If Database Encrypted Or Not On Primary / Standby?

Jul 25, 2013

We have a primary and a standby (Physical Dataguard) site.

1. How do i check if the database is encrypted or not on primary as well as standby ?
2. If primary and standby are encrypted, does the data that gets replicated from primary to standby also in encrypted form ? If not, does it make sense to encrypt that ?

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Data Guard :: Take Clone Primary Database At Specific Time?

May 29, 2013

Can we make Data Guard to take clone Primary Database at Specific Time?

e.g. Clone Primary Database at 10 AM and at 6 PM?

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Data Guard :: Find Archive Log Gap From Primary Database Site?

Mar 23, 2013

I am new to Oracle and a beginner in Data Guard.

1) How to find archive log gap from Primary Database site?
2) Do I need the DB_UNIQUE_NAME when setting the LOG_ARCHIVE_DEST_2 ? What is the purpose of DB_UNIQUE_NAME in LOG_ARCHIVE_DEST parameter?
3) If archivelog gap happens standby db goes out of sync with the primary database. What does out of sync actually mean?
4) Primary DB knows where to transport redo data based on the location mentioned in LOG_ARCHIVE_DEST_n of Primary DB. Am I correct in my understanding?

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Data Guard :: Convert Snapshot Database (standby) Directly To Primary?

Dec 16, 2012

(Oracle 11gR1 OEL 5)Is there any possibility to convert snapshot database (standby) directly to Primary. Instead of manual switchover I want to do this

I have checked that snapshot creates a guaranteed restoration point which reverts back changes in Standby.

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Data Guard :: Logs Get Shipped But Not Applied - Due To Primary Database Reset

Jul 22, 2013

I have a Sap Primry Database and also a standby db that was working perfectly.. We migrated the primary db from windows 2003 to windows 2008 and brought the primary db up.. I had to create a controlfile and do a system copy and had to reset the logs on the Primary.. All came up and when i checked the standby it was receiving the logs but after a month. i see that it was not applying the logs as I think because of the sequence number .. it stopped.

I did the ffg as per the attachement...My logs have been shipped across but not applied, But What worrries me is the log sequence number on my Primary

SQL> select max(sequence#),thread# from gv$archived_log group by thread#;

MAX(SEQUENCE#) THREAD#
-------------- ----------
27727 1

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Data Guard :: Query Regarding Standby Database State When Primary Is Down / Unreachable

Feb 20, 2013

I want to know if there is any reflection on the standby database states when it's primary is down or not reachable? I want to use this information from standby node to determine if I can programmatically execute (dgmgrl) failover operation or not? This is considering that the broker configuration has no fast-start failover and no observer enabled/configured.

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Data Guard :: Primary Database Is RAC And Physical Standby Is Single Instance

Mar 27, 2013

I am using Oracle RAC 11.2.0.3 as primary database, we are going to start using Oracle data guard. So I am designing my infrastructure and planing to use Oracle 11.2.0.3 Single instance as my physical stand by database.

My question is it feasible to have my standby database as single instance while the primary is RAC? is it feasible to build my Oracle single instance standby database from the RMAN backup of the RAC primary database? Is there any restrictions (or any points to be taken into consideration) since my primary database is RAC while the physical standby is Oracle single instance?

in the below link

[URL].......

it was mentioned that primary can be RAC or single and same for standby, but my question is it feasible to have primary as RAC while standby as single instance? or it should be like each others?

The primary database can be either a single-instance Oracle database or an Oracle Real Application Clusters (RAC) database. Similar to a primary database, a standby database can be either a single-instance Oracle database or an Oracle RAC database.

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Data Guard :: Right Steps To Perform Failover In Case Primary Database Gets Fail

Jan 10, 2011

i have Oracle 10g data guard set up on windows environment.....i need to know the what are the right steps to perform failover in case the primary database gets fail.

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Data Guard :: Create Control File With Standby Keyword On Primary Database

Jul 4, 2012

What is difference when you issue a create controlfile with "standby" keyword on the primary database

ALTER DATABASE CREATE STANDBY CONTROLFILE AS '/path/db_stby.ctl';

vs. creating a control using

ALTER DATABASE BACKUP CONTROLFILE to '/path/db_control.ctl';

what does ORACLE put into the standby control that is "extra"? ie. what is the difference between a standby control file and a normal control file?

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Data Guard :: Find Out Number Of Standby Databases Configured For Primary Database From OS Level?

Nov 14, 2013

How can find the number of standby databases configured for primary database from os level

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Logical Standby / Streams?

Feb 3, 2012

Source DB is logical standby 10.2.0.5
Destination DB is 11.2.0.3

Is it possible to set up streams on the logical DB to replicate some schemas to the 11gR2 DB?

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Buffer Gets And Logical Reads?

Jun 27, 2012

Does the counter of event buffer gets include the logical reads ? Does the mertic buffer gets include the event of reading from undo buffer ?

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