Delete pending roll forward primary database journal

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• Roll forward standby database with the incremental backup, when a data file is deleted in primary education

  Hello

  I'm nologging operations + deleting some files in the primary and you want to roll forward the day before using the incremental backup Yvert.

  I do in particular, as the files are dropped?

  I got to meet ( Doc ID 1531031.1 ) which explains how to roll forward when a data file is added.

  If I follow the same steps, to make the move to restore the data file newly added, will it work in my case?

  Can someone please clarify?

  Thank you

  San

  I was wondering if reocover noredo is performed before restored controlfile, oracle will apply the incremental backup error-free files, and in this case, what would be the status of the data file in the control file.

  Why do you consider to retrieve the day before first and then in the restaurant of the controlfile will lead to problems. Please read my first post on this thread - I had clearly mentioned that you would not face problems if you go with the method of deployment.

  Here is a demo for you with force logging is disabled. For the first time the day before resuming and restored then the controlfile ensures:

  Primary: oraprim

  Standby: orastb

  Tablespace DataFile of MYTS is removed on primary:

  SYS @ oraprim > select force_logging in the database of v$.

  FORCE_LOGGING

  ---------------------------------------

  NO.

  Currently the tablespace is to have 2 data files.

  SYS @ oraprim > select file_name in dba_data_files where nom_tablespace = 'MYTS;

  FILE_NAME

  -------------------------------------------------------

  /U01/app/Oracle/oradata/oraprim/myts01.dbf

  /U01/app/Oracle/oradata/oraprim/myts02.dbf

  In standby mode, the tablespace is to have 2 data files:

  SYS @ orastb > select name from v$ datafile where ts #= 6;

  NAME

  --------------------------------------------------------------------------------

  /U01/app/Oracle/oradata/orastb/myts01.dbf

  /U01/app/Oracle/oradata/orastb/myts02.dbf

  Postponement of the day before on the primary log shipping

  SYS @ oraprim > alter system set log_archive_dest_state_3 = delay;

  Modified system.

  Dropped 1 MYTS datafile on the primary.

  SYS @ oraprim > alter tablespace myts drop datafile ' / u01/app/oracle/oradata/oraprim/myts02.dbf';

  Tablespace altered.

  Removed some archives to create a space.

  [oracle@ora12c-1 2016_01_05] $ rm - rf * 31 *.

  [oracle@ora12c-1 2016_01_05] $ ls - lrt

  13696 total

  -rw - r - 1 oracle oinstall 10534400 5 January 18:46 o1_mf_1_302_c8qjl3t7_.arc

  -rw - r - 1 oracle oinstall 2714624 5 January 18:47 o1_mf_1_303_c8qjmhpq_.arc

  -rw - r - 1 oracle oinstall 526336 5 January 18:49 o1_mf_1_304_c8qjp7sb_.arc

  -rw - r - 1 oracle oinstall 23552 5 January 18:49 o1_mf_1_305_c8qjpsmh_.arc

  -rw - r - 1 oracle oinstall 53760 5 January 18:50 o1_mf_1_306_c8qjsfqo_.arc

  -rw - r - 1 oracle oinstall 14336 Jan 5 18:51 o1_mf_1_307_c8qjt9rh_.arc

  -rw - r - 1 oracle oinstall 1024 5 January 18:53 o1_mf_1_309_c8qjxt4z_.arc

  -rw - r - 1 oracle oinstall 110592 5 January 18:53 o1_mf_1_308_c8qjxt34_.arc

  [oracle@ora12c-1 2016_01_05] $

  Current main MYTS data files:

  SYS @ oraprim > select file_name in dba_data_files where nom_tablespace = 'MYTS;

  FILE_NAME

  -------------------------------------------------------

  /U01/app/Oracle/oradata/oraprim/myts01.dbf

  Current data of MYTS standby files:

  SYS @ orastb > select name from v$ datafile where ts #= 6;

  NAME

  --------------------------------------------------------------------------------

  /U01/app/Oracle/oradata/orastb/myts01.dbf

  /U01/app/Oracle/oradata/orastb/myts02.dbf

  Gap is created:

  SYS @ orastb > select the process, status, sequence # v$ managed_standby;

  STATUS OF PROCESS SEQUENCE #.

  --------- ------------ ----------

  ARCH. CLOSING 319

  ARCH. CLOSING 311

  CONNECTED ARCH 0

  ARCH. CLOSING 310

  MRP0 WAIT_FOR_GAP 312

  RFS IDLE 0

  RFS IDLE 0

  RFS IDLE 0

  RFS IDLE 320

  9 selected lines.

  Backup incremental RMAN is taken elementary school.

  RMAN > incremental backup of the format of database of SNA 2686263 ' / u02/bkp/%d_inc_%U.bak';

  From backup 5 January 16

  using the control file of the target instead of recovery catalog database

  the DISC 2 channel configuration is ignored

  the DISC 3 channel configuration is ignored

  configuration for DISK 4 channel is ignored

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 41 type device = DISK

  channel ORA_DISK_1: starting full datafile from backup set

  channel ORA_DISK_1: specifying datafile (s) in the backup set

  Enter a number of file datafile = 00001 name=/u01/app/oracle/oradata/oraprim/system01.dbf

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/sysaux01.dbf 00003

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/undotbs01.dbf 00004

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/users01.dbf 00006

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/myts01.dbf 00057

  channel ORA_DISK_1: starting total, 1-January 5, 16

  channel ORA_DISK_1: finished piece 1-January 5, 16

  piece handle=/u02/bkp/ORAPRIM_inc_42qqkmaq_1_1.bak tag = TAG20160105T190016 comment = NONE

  channel ORA_DISK_1: complete set of backups, time: 00:00:02

  Backup finished on 5 January 16

  Saved controlfile on primary:

  RMAN > backup current controlfile to Eve format ' / u02/bkp/ctl.ctl';

  Cancel recovery in standby mode:

  SYS @ orastb > alter database recover managed standby database cancel;

  Database altered.

  Recover the day before by using the above backup items

  RMAN > recover database noredo;

  From pick up to 5 January 16

  the DISC 2 channel configuration is ignored

  the DISC 3 channel configuration is ignored

  configuration for DISK 4 channel is ignored

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 26 type of device = DISK

  channel ORA_DISK_1: from additional data file from the restore backup set

  channel ORA_DISK_1: specifying datafile (s) to restore from backup set

  destination for the restoration of the data file 00001: /u01/app/oracle/oradata/orastb/system01.dbf

  destination for the restoration of the data file 00003: /u01/app/oracle/oradata/orastb/sysaux01.dbf

  destination for the restoration of the data file 00004: /u01/app/oracle/oradata/orastb/undotbs01.dbf

  destination for the restoration of the data file 00006: /u01/app/oracle/oradata/orastb/users01.dbf

  destination for the restoration of the data file 00057: /u01/app/oracle/oradata/orastb/myts01.dbf

  channel ORA_DISK_1: backup /u02/bkp/ORAPRIM_inc_3uqqkma0_1_1.bak piece reading

  channel ORA_DISK_1: room handle=/u02/bkp/ORAPRIM_inc_3uqqkma0_1_1.bak tag = TAG20160105T190016

  channel ORA_DISK_1: restored the backup part 1

  channel ORA_DISK_1: restore complete, duration: 00:00:01

  Finished recover to 5 January 16

  Restored the controlfile and mounted the day before:

  RMAN > shutdown immediate

  dismounted database

  Instance Oracle to close

  RMAN > startup nomount

  connected to the database target (not started)

  Oracle instance started

  Total System Global Area 939495424 bytes

  Bytes of size 2295080 fixed

  348130008 variable size bytes

  583008256 of database buffers bytes

  Redo buffers 6062080 bytes

  RMAN > restore controlfile eve of ' / u02/ctl.ctl ';

  From 5 January 16 restore

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 20 type of device = DISK

  channel ORA_DISK_1: restore the control file

  channel ORA_DISK_1: restore complete, duration: 00:00:01

  output file name=/u01/app/oracle/oradata/orastb/control01.ctl

  output file name=/u01/app/oracle/fast_recovery_area/orastb/control02.ctl

  Finished restore at 5 January 16

  RMAN > change the editing of the database;

  Statement processed

  output channel: ORA_DISK_1

  Now the data file does not exist on the standby mode:

  SYS @ orastb > alter database recover managed standby database disconnect;

  Database altered.

  SYS @ orastb > select the process, status, sequence # v$ managed_standby;

  STATUS OF PROCESS SEQUENCE #.

  --------- ------------ ----------

  CONNECTED ARCH 0

  CONNECTED ARCH 0

  CONNECTED ARCH 0

  ARCH. CLOSING 329

  RFS IDLE 0

  RFS IDLE 330

  RFS IDLE 0

  MRP0 APPLYING_LOG 330

  8 selected lines.

  SYS @ orastb > select name from v$ datafile where ts #= 6;

  NAME

  --------------------------------------------------------------------------------

  /U01/app/Oracle/oradata/orastb/myts01.dbf

  Hope that gives you a clear picture. You can use this to roll forward day before using the SNA roll forward Eve physical database using RMAN incremental backup | Shivananda Rao

  -Jonathan Rolland

• short of space locks roll FORWARD the database

  Hi all
  
  My database RAC 11 GR 2 running on both nodes RH5.7 got locked. I tell the cause the disk space RECOVERY satiety than the execution of what the ASMCA shows that the entire roll FORWARD is used (40 GB!)
  
  Furthermore, I try to access the database via sqlplus, I get ORA-00257 (http://ora-00257.ora-code.com/) that mentions
  
  "The most likely cause of this message, it is that the destination device is out of space to store the redo log file.
  
  Now is it possible that an Oracle RAC is unrecoverable, simply because he can't write newspapers? And as we cannot access, we cannot remove these logs?
  
  Help, please

  920550 wrote:
  Now is it possible that an Oracle RAC is unrecoverable, simply because he can't write newspapers?

  No, it is the opposite: Oracle instance blocked any new database entry to be recoverable.

  And as we cannot access, we cannot remove these logs?

  Even if archive destination is stored in ASM you can access (for example with the utility asmcmd command line interface).

  What you need to do is:
  1 backup archived redo logs
  2. Remove archived redo logs that have been saved.

  For example if you use RMAN, you can try

  backup archivelog all delete input;
  

• Roll forward standby with RMAN incremental backup when used DG broker

  Hello
  
  I'm about to use the process defined in the note: steps to roll forward a database ensures the RMAN incremental backup using during primaries and Eve are in the file [836986.1 ID] ASM system. I'm on 11.1.0.7.
  
  However, it does not mention the DataGuard broker.
  Did someone played this process when you use the broker.
  The broker he manages properly?
  Does it matter if the broker is upwards or downwards during the physical recovery of standby or replacement of control file?
  Should the broker configuration be re-created?
  
  Thank you.

  user11993454 wrote:
  Hello

  I'm about to use the process defined in the note: steps to roll forward a database ensures the RMAN incremental backup using during primaries and Eve are in the file [836986.1 ID] ASM system. I'm on 11.1.0.7.

  However, it does not mention the DataGuard broker.
  Did someone played this process when you use the broker.
  The broker he manages properly?
  Does it matter if the broker is upwards or downwards during the physical recovery of standby or replacement of control file?
  Should the broker configuration be re-created?

  Thank you.

  (1) disable the broker
  (2) perform the Roll forard SNA.
  (3) select the broker

• passing members Journal of primary databases / DG secondary...

  Hello.
  
  I use Oracle 11.2 (Solaris) and I have a question about the redo log members.
  
  Unfortunately, I do not have a test database that mimics the production in order to test what I have to do, otherwise I'm just do it in test and no need to ask the following question. In any case...
  
  I found that the production database has 3 members in each redo log group knowing that there is no real valid reason to have more than 2 members per newspaper group, I want to drop one of the members of the Group of newspapers. So, my question concerns the members of journal pending. And if there is no extra step I have to take for the database pending.
  
  
  For example, I have 9 groups of redo log 4 for primary and 5 for sleep.
  It is ok. No problem with that. I want just to reduce the number of members of each group of 3 to 2.
  
  (From http://psoug.org/reference/log_files.html), it seems that I just need to specify the 'stand-by' parameter in my syntax for dealing with members of journal pending.
  

  ALTER DATABASE DROP [STANDBY] LOGFILE MEMBER <logfile_member_path_and_name>;

  This same action will also take place automatically on the basis of data pending?
  I suppose it would be, but I just wanted to confirm.

  Hello again;

  If the files have been deleted it too?

  I'd probably, but I don't make very high on my list. If all goes well they will stay there 99% of the time and do nothing. A rainy day I would say.

  Best regards

  mseberg

• Pending passage of the primary database to database

  Hi Experts,
  
  There is a database of oracle 10 g on a windows server and the database pending 1 * 0 g on another windows server *. The archivelogs in the primary database are generated on a network drive and they are applied on a regular basis of the primary database to the standby database, but now the primary database server broke down. If someone can tell me how to failover the database ensures the primary. I followed these steps but still Iam unable to move forward
  
  on the standby server:
  
  1 rman target sys/oracle@standby catalog rman/rman@catalog
  2 recover database;
  3 output
  4 sqlplus sys/oracle@standby as sysdba
  5 change the recovery of database managed standby database disconnect from the session;
  6 alter database recover managed standby database finish;
  7 change the database for validation at the grade crossing;
  
  All records of the primary database in the backup catalog are applied with success, until no 6 but not 7 would give me an error indicating that the required media recovery. Can someone help me?
  
  Thanks in advance...

  HI srp.

  As u mentioned above you are primary database server crashed.

  Now, you want to switch to mode ensures primary school.

  Use the following commands to go to primary school

  1 startup nomount
  2. change the mounting base pending;
  3. recover standby database managed disconnect from the session.
  4 recover managed standby database finish skip standby logfile;
  5 change the database for validation at the grade crossing;
  6. immediate cessation
  7. starting

  Otherwise, you need to activate the standby database using the command sequence

  SQL > recover managed database finish pending;
  SQL > alter database activate standby database;
  SQL > stop & start.

  Kind regards
  Praful K

• confused about groups of log roll forward pending

  Hi master,
  
  I am little confused on create redo log group for eve of the database, according to the emergency number repeat group depends on following equation.
  
  (maximum number of logs for each thread + 1) * maximum number of threads
  
  but I don't know where to fing threads? in fact, I would like to know about thread in depth.
  
  How to find the current thread?
  
  Thanks and greetings
  VD

  Am I wrong? do logs to archive database of primary database automatically pending? is it possible to implement this feature?

  his atomized via log_archive_dest_n = service =<>

  If I do not switch journal will be my backup database be able to read the lkogs from the primary database?

  Yes, it will transfer the log as soon as you explicitly switch or switch of implicit journal newspaper occurs.

  I would like to implement and to know this feature.is there any which utility provided by oracle?

  like I said its atomisee. I said that to make the journal pass after you have created the table for the primary database in order to ensure that the database enforces that archived newspaper the engagement of the main database after successful transformation.

  Khurram

• Effects of the opening of a primary database in resetlogs on the standby database

  Hi all

  Operating system: Solaris

  DB: 11 gR 2

  Can anyone throw some light below the explanation is given in case of recovery through the OPEN RESETLOGS Statement oracle documentation

  If the database pending...	Then...	Perform these steps...
  Not asked to redo data beyond the new resetlogs SCN (after the start of the new branch of data recovery)	Redo apply automatically takes the new branch of the roll forward.	No manual intervention is required. The MRP automatically resynchronizes the database pending with the new branch of data recovery.

  Here is the link of the source:

  Manage a database of physical standby

  Kind regards

  Just to give a concrete example, I did a test on one of my VM boxes. The database currently shows:

  SQL > select sequence #, the journal of v status $;

  SEQUENCE # STATUS

  ---------- ----------------

  34 ACTIVE

  CURRENT 35

  ACTIVE 33

  While on the eve, I stopped the redo apply so the standby status is:

  SQL > select sequence #, used from v$ archived_log;

  SEQUENCE # APPLIED

  ---------- ---------

  YES 30

  31 YES

  32 YES

  33 NO.

  34 NO.

  The database ensures in a few newspapers behind the primary.

  On the primary, I moved the journal a few sequences, close, the bootable media and restored and recovered 37 sequence:

  RMAN > run

  2 > {}

  3 > restore database;

  4 > up 37 sequence;

  5 > restore database;

  6 > alter database open resetlogs;

  {7 >}

  During the open resetlogs operation, I have to tail the log of alerts on the standby database and the following output shown:

  RFS [11]: identified the type of database such as 'physical' standby: customer is ARCH pid 17192

  RFS [11]: new branch archives REDO: 844006029 current: 843649185

  RFS [11]: Journal selected 102 for thread 1 1 dbid-204899919 branch of the 844006029 sequence

  RFS [11]: new Branch (resetlogs_id) of archive REDO: before 844006029: 843649185

  RFS [11]: ID of Activation of archives: current 0xf3d44942: 0xf3cf5ac3

  RFS [11]: effect of primary database OPEN RESETLOGS

  RFS [11]: entry of Incarnation added to Branch (resetlogs_id): 844006029 (ORCL11PS)

  Fri Apr 04 14:07:39 2014

  Definition of embodiment of recovery target 2

  Fri Apr 04 14:07:39 2014

  Archived journal 21 additional for each sequence 1 1 0xf3d44942 dest ID thread entry 1:

  So as you can see, the log shows the standby detects the resetlogs on the primary operation and the new branch of the roll forward and received the next archivelog with sequence 1.

  Audit on the eve, it shows the status following the archivelogs:

  SEQUENCE # APPLIED

  ---------- ---------

  31 YES

  32 YES

  33 NO.

  34 NO.

  35 NO.

  36 NO.

  37 NO.

  38 NO.

  1 NO.

  2 NO.

  And after restart the managed recovery process, it now shows:

  SEQUENCE # APPLIED

  ---------- ---------

  31 YES

  YES 30

  YES 19

  YES 33

  34 YES

  35 YES

  YES 36

  37 NO.

  38 NO.

  1 YES

  2 YES

  Archivelogs with sequence 37 and 38 were not implemented because of the CAMILLE on the main sequence until (but not including!) 37 and then properly applied the next archivelogs of the new branch of the roll forward, with sequence 1 and 2.

• logfile missing watch on the primary database

  In a 11.2.0.4 database, we have configured Data Guard, so they created pending log files, but it has been deleted in ASM + accidentally.

  Thus, research in the database primary, the newspaper observed log pending files, but is not in ASM +.

  In the alert log has not been recorded event.

  I can do the recreation of the eve logfiles?

  What role can have on the primary database?

  Our configuration:

  BECAUSE with 4 cases

  --

  logonline 5 groups for example

  each group of logonline with 2 members

  --

  6 standby of the group e.g.

  each group watches with 2 members

  Total 48 asm file missing

  Select *-Group #, Member

  v $ logfile where type = "STANDBY".

  order by group #.

  GROUP # STATUS TYPE MEMBER IS_RECOVERY_DEST_FILE

  No. 51 +DATA_EXA/prep/onlinelog/group_51.1613.804140169 EVE

  No. 51 +RECO_EXA/prep/onlinelog/group_51.2918.804140175 EVE

  No. 52 +DATA_EXA/prep/onlinelog/group_52.1614.804140479 EVE

  No. 52 +RECO_EXA/prep/onlinelog/group_52.4182.804140485 EVE

  ....

  .....

  74	No. +DATA_EXA/prep/onlinelog/group_74.972.875418965 day BEFORE
  74	No. +RECO_EXA/prep/onlinelog/group_74.14330.875418971 day BEFORE

  ASMCMD >

  ASMCMD > ls-l +DATA_EXA/prep/onlinelog/group_74.972.875418965

  ASMCMD-8002: entry 'group_74.972.875418965' does not exist in the directory ' + prep/DATA_EXA/onlinelog /'

  ASMCMD >

  ASMCMD >

  Redologs Eve will be active when the database is in the role of Eve, so you can drop the watch group redologfile missing for the thread and add it again.

  You have lost all the groups newspaper waiting for redo for all threads?

  On primary, you can drop all odds redolog groups because they will be unassigned State on the standby database make sure the group is unassigned status before falling

  Select Group #, THREAD #, STATUS from v$ standby_log;

• Delete pending archive logs

  Hello
  
  My oracle database is 11.2.0.2 RDBMS RAC on RHEL 5. 6
  
  We have recently established physics of the standby database. How to remove archive logs waiting for physical standby mode?

  Hello;

  There is a little different to do this. I would consider these notes:

  How to ensure that RMAN is NOT delete archived logs that have not yet shipped to standby [394261.1 ID]

  RMAN removes records of logs on the primary database not applied pending physical [ID 1324759.1]

  Configure RMAN to purge the archivelogs after application on hold [728053.1 ID]

  You can use an RMAN script to do this:

  echo "Starting RMAN..."
  $ORACLE_HOME/bin/rman target / catalog user/password@rcatalog << EOF
  
  delete noprompt ARCHIVELOG UNTIL TIME 'SYSDATE-8';
  
  exit
  EOF
  

  Best regards

  mseberg

• archive log deletion pending

  Hi all
  
  I'm working on oracle database enterprise edition 10.2.0.4.I have created a database.the physical standby of the primary database name is prim and the standby database name Eve.He has 100 files of newspapers to archive are generating each size is 300 MB per day. I applied archive log political removal of watch on the primary database. So all the newspaper shifted and applied pending archive are deleted from primary. But my concern is the archive logs staggered into sleep mode. The archivelogs in the standby server must be deleted.how that it can be removed. Help, please

  use RMAN to this effect, as you do in primaries.

  It will make a backup if you need and delete the archivelogs.

• Accessibility of the previous backup Image of RMAN copy after roll forward with the additional days

  Hi all

  I have these 2 questions related to RMAN Image backups. Please suggest the best approaches...

  We are in publishing Standard of Oracle 11.2.0.3 database on instances of RAC ASM on Windows 2008 and want to see the feasibility of using Copies of RMAN images for our databases.

  Have a question about the availability of backups for restoration in a scenario explained below:

  1ST QUARTER)

  To get copies of the Image which are rolled to the next incremental backup. Can we still restore/recovery to earlier date than the Image backup before rolls? If not, please suggest

  What is the best way to accomplish this task if we choose RMAN COPY of IMAGE as our backup strategy.

  Example:

  Log archiving is enabled.

  Sunday evening: full level 0 backup copy Image

  Monday night: 1) level 1 incremental Image copy backup and Roll-forward/apply the incremental backup for the full backup from Sunday

  (2) backup of files to archive log after the full backup from Sunday.

  Tuesday evening: 1) level 1 incremental Image copy backup and Roll-forward/apply the incremental backup for roll Monday transferred (full) backup.

  (2) backup of files to archive log after incremental backup from Monday.

  Wednesday evening: 1) level 1 incremental Image copy backup and Roll-forward/apply the incremental backup to roll Tuesday transferred (full) backup.

  (2) backup of files to archive log after incremental backup on Tuesday.

  Can we restore and recover the data until Tuesday morning 11:00 even if our full backups are rolled transferred by the application of incremental backups. Please suggest

  What is the best way to accomplish this task if we choose RMAN COPY of IMAGE as our backup strategy.

  Q2)

  Q2.a) Scenario 2: with above politics of backup in the 1st quarter.

  If I intend to use the copy of current Image backup on WEDNESDAY NIGHT for the recovery and restoration on-site. understand that

  We're losing backup of forwded for the roll of Wednesday night. Is it possible to take a backup/backup copy of this Wednesday night before being used for on-site recovery, so that we can use it

  for all future restorations.

  Q2.b)

  If we are unable to take backup of the night't Wednesday backup before being used for the recovery on the spot. We can always access backup Image roll passed Tuesday night? If so, can

  I take a new incremental Image copy backup Thursday night and roll forward/apply to copy backup Image Tuesday night. Please suggest the best approach to have accessible backups for each night?

  Thank you

  Hello

  I suggest that postpone differentials apply for a week as says Hemant.

  for example:

  grab the copy of database with tag = "incremental_update" until ' SYSDATE-7 "; ". "

  1 extra strength to recover from backup with tag = "incremental_update" database;

  Talip Hakan Öztürk

• No index on the primary database. Need help with "COUNT OFF"; option

  11 GR 2 11.2.0.3 under linux

  Hi everyone,.

  It's an honor to be with you guys.

  I have a big question here and I am unable to decide on a permanent solution.

  We have a primary database that is configured to have a logical expectation.

  The logic of the day before was not built by me. But I'm now support...

  So as the title suggests, there is NO primary index / unique + not null on a large number of tables in the database of emergency primary/logic. But the application logic guarantees uniqueness values rather than null.

  Here is where the problem starts.

  Guys request DO NOT want us to create an index on the primary database.

  According to my understanding, because the database lack of clues, the apply SQL must do a full table scan whenever it changes / remove data. It is a very expensive process and consumes a lot of time. This takes hours together to apply a minute with a value of newspapers on the logic of the eve... A huge lag is created during the hours and is not acceptable.

  So as I told you earlier, the guys request do not want an index on the tables not supported.

  They use the database pending logic exclusively for information purposes and it's like production for them...

  
  Let me give an overview...

  According to the document on the creation of the logic of the day before for 11.2 as below

  http://docs.Oracle.com/CD/E11882_01/server.112/e41134/create_ls.htm#SBYDB4730

  Step 1 to find tables without identifying unique logic in the primary database.

  Query the DBA_LOGSTDBY_NOT_UNIQUE view to display a list of tables SQL may not apply be able to uniquely identify. For example:

  SQL> SELECT OWNER, TABLE_NAME FROM DBA_LOGSTDBY_NOT_UNIQUE

   2> WHERE (OWNER, TABLE_NAME) NOT IN 

  3> (SELECT DISTINCT OWNER, TABLE_NAME FROM DBA_LOGSTDBY_UNSUPPORTED) 

  4> AND BAD_COLUMN = 'Y'; 

  The above query has 1040 tables in a particular schema. All the these have no index is not null primary / unique.

  
  Now according to the step 2 as below, we have an option to add a disabled RELY primary key constraint.

  Step 2 Add a disabled RELY primary key constraint.

  If your application provides the rows in a table are unique, you can create a primary key disabled RELY constraint on the table. This avoids the overhead of maintaining a primary key on the primary database.

  Can someone explain what this RELY constraint is disabled and how to function and help please?

  
  I have a few questions about the constraint to RELY.

  (1) change current plans of optimizer on primary for the execution price?

  (2) can help to boost the performance of SQL apply without creating index on the logical standby database?

  (3) it will change current plans of optimizer logical pending for the SQLs running?

  What are the options that I need to increase the performance and table scan complete engine AVOID SQL apply on the logic of the day before?

  Thanks a ton for reading my post.

  
  Kind regards

  Abhishek

  In fact, I've implemented a key primary rely disabled on primary and unique index on the logic of the previous day.

  The logic of Eve runs lightning fast now

• Commit &amp; roll forward

  updates a row in the table

  Has not issued validation.

  Leave for a day

  Querying the table after a day.

  According to Arup nanda blog

  http://Arup.blogspot.in/2010/12/100-things-you-probably-didn ' t - know.html

  We will see the updated record if transaction not committed.

  Redo log won't marker validation, so during recovery, roll forward coming.

  What happens after 2 days if I bounce the DB?

  Redolog have been archived.

  Roll forward is still happening?

  Oracle is also the newspapers archived when starting?

  1db95704-3e2e-4907-9e49-b5c3f98b9612 wrote:

  Finally redo everything... Cancellation block is again a datablock. Have to redo change vector describing the change to the block to cancel ---> there is a redo to undo.

  Unless you have a redo to undo, you can not recover.

  Repeat the same answer doesn't mean it's good

  Evil and lack of understanding.

  We don't have to talk about media recovery here. If the State t1 point when a data block is A and after awhile you records updated in this block of data as a result by the time point t2 data block state guess B but you commit this transaction. In this case, you must redo vectors of change that represents the process of changes in block A-> B. But this modified state block in the buffer cache and modify vector stored in the online redo log. If you currently run SHUTDOWN ABORT and then in the buffer of data in the cache will be lost in such situation need again to the application of the data files from online newspapers to the data files to the construction of the last data block (B) State, but after the database instance open it will restore by using undo (she also rebuild by redo). But after time t2 here arrive checkpoint (or switching of newspaper) then the State of the last data block (B) actually in the data file must therefore not redo recovery of this transaction.

• move the primary database files to another location

  Hi all
  
  I move the files of my primary database to another location on the same server, but on a different drive (from f: to G :) with rename comand but file name will be the same, after you have moved the files what step I need to perfom on standby DB will have on my database pending?)

  This doc is everything after you rename the primary file, I'm not rename all the files I need to just move file from one place to another without changing the file name.

  I hope you know how to move files from one place to the other on the primary database. It's not just copying the files from one disk to another and then to go to the top of your database.

  You rename your data files or copy it to another location, how the controlfile to know you have copied/renamed to a different location?

  I guess you 1 to ask the question of how to move files to a different location in primary education and then move on standby.

  Steps to follow:
  1 Hope you brought your primary database.
  2 copy the datafiels to one disk to another.
  3. attach the primary database.
  4 rename all data files that you moved to this control file would know the changes.
  SQL > alter rename file 'G:\oracle\user01.dbf' to 'F:\oracle\user01.dbf ';
  5. subsequently open the database.
  Refer this to move data files from one place to another http://www.orafaq.com/wiki/Move_datafile_to_different_location, http://www.adp-gmbh.ch/ora/admin/move_datafiles.html

  on autonomy in standby:
  1 cancel the MRP
  2. change the db_file_name_convert to point to «F:\»... »
  3. Mount the backup database
  4. start the MRP

  Hope that these steps are clear.