What are the causes of archivedlog of size to be different from the size of the online redo log?

Similar Questions

• Redo log entries to the online redo log files

  Hello

  I'm a little confused about the redo log entries.

  I learned that LGWR writes redo log entries in the SGA, in redo log files in the following situation:

  -3 seconds after the last validation

  -redo log buffer has 1 MB

  -redo log buffer data 1/3

  When I take a transaction and if I change the wrong data, I have to cancel this transaction BUT the right now,

  What happens if the LGWR writes redo log disk entries?

  Is the bad transaction committed at all times?

  2791011 wrote:

  Hello

  I'm a little confused about the redo log entries.

  I learned that LGWR writes redo log entries in the SGA, in redo log files in the following situation:

  -3 seconds after the last validation

  -redo log buffer has 1 MB

  -redo log buffer data 1/3

  When I take a transaction and if I change erroneous data, I have to cancel this transaction at this time, BUT

  What happens if the LGWR writes redo log disk entries?

  Is the bad transaction committed at all times?

  DML changes are "permanent" after that VALIDATION is issued.

  When any COMMIT is issued, then changes can be undone.

• What are the relationships between the logging and IKM?

  What is the best method to use in the following scenario:
  I have about 20 tables with the large amount of data sources.
  I need to create interfaces that join the source tables in target tables.
  The tables are inserted every few seconds with about hundreds of thousands lines.
  There may be a gap of a few seconds between the insertion of different tables that could be attached.
  The source and target tables are on the same Oracle instance and schema.
  I want to understand the role of: 'Logging CDC' and "IKM - incremental" and
  How can I use it in my script?
  In general, what are the relationships between "Logging" and 'IKM '?
  Use both? Or maybe it's better deelte and insert the target tables?
  
  I want to understand what is the role of "Logging CDC"?
  Can 'IKM - incremental' work without "logging"?
  Must 'Logging' have PK on the tables?
  What should I do if I can't say PK (there may be several identical lines)?
  
  Yael thanks in advance

  user604062 wrote:
  Hello
  Thanks for your quick response!

  No probs - its still fresh in memory I did a major project on this topic last year (400 tables, millions of lines per day (inserts, updates, deletes), sup-5 minute latency). The problem is it isn't that well written on the web, that you have read the blog of the example I linked to in my first answer? See also here: http://odiexperts.com/changed-data-capture-cdc/

  Always on logging:
  My source table is inserted all the time.
  The interface to join the source table in the target table.

  In ODI, the correct term would be your source table "fits" in the table target, unless you mean literally that want to join the the source with the taget table table? My question if you want to do with the result of the join?

  What exactly the "journaling" CDC updates?
  It updates the model of ODI? interfaces? The source of data in the model of ODI? The target table?

  Logging CDC configures and deploys the data capture mechanism (Triggers or log based capture, IE Logminer/streams/Goldengate) - it is not updated the model as such, she pointed out the metadata of the model of ODI repositoty as a CDC data store, allowing you, the developer say ODI to use log data if you wish (reported in the interface) There is no change in the target table, you get an indicator of metadata (IND_UPD) against a line during the integration (in C$ and I have tables$) that tells you if its insertion (I) and update (U) or deletion (D). It had ' lines allow you to synchronize the deletions, but yoy say its inserts only then you probably used use this option. "
  So the only changes are the source table to your interface, another diary data (if you use logging) or the table of the actual source (if not using the logging).

  This is the main thing that I don't understand!

  I hope I made a little clearer.

  Try the following as a quick test:

  Reverse a source table an engineer and the target (at least) table.
  Import the update incremental LKM and IKM.
  Import of the JKM you want to use.

  Create an interface between the source and the target without any deployed JKM.
  Configure the options of JKM on the model, the "Start log" to start the process of capture - this is quite a complex stage and a lot of things to understand what is happening in the source database, better to check code ODI sends to the database and to review the documentation of Oracle database for a description of what his weight (instantiate Tables (, sets of creating change, creation of subscribers etc. establishment of newspaper groups, creating views Journalising etc.) -you will need to consult your Source DBA database initially as ODI wants to make many changes to the source DB (in mode Archivelog process max, parallelism, size, Java etc.)

  Now, edit your interface and mark the table source for use "Journalized data bank.
  Restart your interface
  Compare the difference in the generated code in the journal of the operator, see the differences of the operator.

  >

  Thank you, Yael

• Clearing Online redo logs on the physical standby of the target

  Hello
  
  Version 11202.
  
  Primer on computer a.
  Watch on computer b.
  
  Later note: 11.2 Data Guard physical standby failover best practices using SQL * Plus [1304939.1 ID].
  

   
  Online redo logs on the target physical standby need to be cleared before that standby database can become a primary database. 

  And later:

   
  On the target physical standby run the following query to determine if the online redo logs have not been cleared... 

  (1) I did not understand where I have to run the query. On computer A, computer B or?
  2)

   
           Online redo logs on the target physical standby need to be CLEARED 
          

  Which means that it must be DELETED? Does transaction could be lost by running the command of compensation?
  
  Thank you

  Hello again;

  I would NOT use a script. The reason is that you are not sure what "switchover_status" will be returned by the database of v$.

  Oracle a broker data available for a quick pass, but I'm from the old school and I want to see how thing works in SQL for awhile first.

  Best regards

  mseberg

• What are the causes my screen to instantly display several small pages?

  What are the causes my screen to instantly display several small pages?

  Your username appears to be rather ironic.

  Given the richness of the information you provided, I guess, whatever the version of Pages that you use, you've opened the model selector.

  Peter

• What are the causes with embedded journalists can always be unloaded by the media broken or deleted all my emails? How can I fix it?

  Whenever people send me emails with embedded videos or images, e-mail is always without the media. It will be just the outline of the empty box where it supposed to be with an icon of the page broken tiny in the upper left corner.

  I can't seem to find the cause and the solution, and it happened for a few years already. It has nothing to do with my being always POP and not IMAP account? What are the possible reasons and solutions? Please help, thanks.

  Someone sent me a message with a broken image. Here's what I found.

  There are two factors that control the display of the remote images in email:

  • You must 'Display remote content in this message' or 'Allow remote content' for the sender; See https://support.mozilla.org/en-US/kb/remote-content-in-messages
  • change view-> 'Message Body As' was originally' HTML'

• What are the data size of the buffer on PX1394E - 3 50

  Hello

  I bought this drive a few days ago and I'm a little confused on the
  the size of the data buffer. The box indicates 16 MB, Toshiba web page says 8 MB, etc...

  Nobody knows, what are the data buffer size of this model?
  Is there a SW or the request to meet with whom?

  BTW, great car, fast, noise, however, extremely when it comes to finding large files.

  Thank you
  Francisco

  Hello

  I have lurked around a bit and it seems that your drive has buffer of 16 MB that is absolutely definitely sure. To check the details of your computer, you can use the tool "Sisoft Sandra". You can download [url href = http://www.sisoftware.net/index.html?dir=&location=downandbuy&langx=en&a=] here [/ URL].

  After download, just install it and you will get all information about your computer, as the size of the buffer of your external hard drive.

  Welcome them

• What are the causes of error - OR-XNET: the NOR-XNET driver is no longer can communicate with the device.

  Hello

  I use X-NET-PCI8512, OS: Windows 7, C++ (middle of the QT interval).

  I'm pooling of card data (StreamIn member function) to ~ 100 Hz. card reading time (ReadStatus) to ~ 100 Hz.

  After about 40 min (depends on the amount of data in) I get this error:

  (Hex 0xBFF630B2) The NOR-XNET driver cannot communicate with the device. Solution: Make sure that the device was not removed from the computer.

  What are the causes of this error?

  Thanks in advance,

  Aviad

  Hello aviadCielo,

  When you get this error, what does do to make it work again? If you restart your program, start all this work?

  Secondly, what version of NOR-XNET do you use? It's maybe a software problem that could be resolved by upgrading to NOR-XNET 1.6.

  Finally, can you reproduce this problem with a simple program? If so, you can join the program you use?

• When I close a program, it seems that the page is molten! What are the causes that

  Just as I said, when I close my Internet explore the page looks as it melts down.

  When I close the Office computer looks like it is melting.

  What are the causes and how can I fix what is wrong

  I ran mcafee and malware programs.

  I have compaq presario v5000

  Windows xp

  32 bit

  do not add ons running.

  I don't see how someone can offer you promising ideas knowing more about your system.  The best you can get is speculation on what might work sometimes maybe. All we seem to know is what sort of a Presario V5000 with XP (there are a lot of different V5000s).

  It worked better in Mode safe or clean boot?  Even if it did, this does not your problem, unless you want to run mode without failure or boot for the rest of your life.

  If you restored to the factory settings in the past, then you have all your video drivers updated?  Chances are good that everything that comes out of the plant is outdated when it leaves the factory.

  If I were you, I would first take a look at your specifications and make sure that your video drivers are up to date.

  Should be considered ditching of McAfee (since it's a famous memory and CPU hog) and replace it with something with a smaller footprint like Microsoft Security Essentials (MSE).  You can simply use the McAfee uninstaller install temporarily and see how things work... you can always reinstall later if you are forced to do it, right?  (but I wouldn't).

  If you still have the problem after all and the verification of your video drivers, check the properties of your system performance (especially the Visual effects) Options.

  Why don't you do this so that we can see what you have:

  Click Start, run and enter in the box:

  Msinfo32

  Click OK, and when the system info summary appears, click on edit, select all (Ctrl-A), copy (Ctrl-C) and paste (Ctrl-V) the information back here in your next reply.

  For video device and driver information, expand components, click view, click on edit, select all, copy and then paste the information here.

  There will be some personal information (such as the user name and the name of the system), and anything that turns information private for you, simply delete the pasted information.

  This will minimize back Q & A and eliminate guesswork.

• Windows closes programs as it is to melt! What are the causes that

  When I close an Office program looks like it's melting!  Even when I turned off the computer.  What are the causes that?

  Thank you

  Deb

  Hello arcand1772,

  Thank you for the question!

  It is disheartening to know that have problems you while closing programs. As I understand it encounter you problems during the closure of the programmes.

  1. the is the problem with a particular program?

  2. were there any changes (hardware or software) to the computer before the show?

  Post a screenshot of the issue to help you best.

  How i: post a screen shot on this forum? -Microsoft Answers

• What are the causes videos stop and start again during the transmission?

  What are the causes videos stop and start again during the transmission?

  Hello

  You can update the latest drivers for the video card and check.

  Also perform the clean boot and check:

  http://support.Microsoft.com/kb/310353

  NOTE: When you are finished troubleshooting, make sure that restore you the computer mode normal startup such as suggested in the article above.

  Let us know the results.

• In XP, what are the default fonts and font sizes by default under advanced appearance for these items listed below?

  What are the fonts by default and default font for these options size? I've changed them - problems. Also why can't you post a record of original fonts for users of xp with all the fonts required default? It helps users strongly tempted to extract did not work properly.
  Need default font and size for each Option below
  3D objects
  Desktop
  Caption button
  Title bar active for example. (Arial - 8) or NA if nothing
  Resident of the active window
  Context of the application
  Title bar inactive
  Inactive window boarder
  Icon
  Title bar inactive
  Menu
  Message box
  Palette title
  Scroll bar
  Selected items
  ToolTip
  Windows
  Icon spacing:
  Icon spacing V
  Thank you

  Hi Scott,.

  If you change the settings in display properties, you can change it to default by selecting the Windows XP default theme. This will change all default Windows fonts and their sizes.

  To do this, follow these steps.

  a. right click on an empty space on the desktop and then click Properties.

  b. on the themes tab, click Windows XP in the theme box.

  c. click OK.

• What are the causes of silverlight N8007 error code.

  What are the causes of silverlight code error N8007?  I have already been able to view the contents of netflicks, but no more.  He has always played by this "Silverlite" program or a recent change?

  Thaks in advance for your answer.

  Hi GaryFelder,
   
  Post your request in the Silverlight forums for assistance on this issue.
   
  Visit the following link to do the same thing:
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• What are the causes of the log of user account on missing cursor in Windows XP? I have two trays of office that they have this same problem. If you restart them the cursor returns?

  What are the causes of the log of user account on missing cursor in Windows XP? I have two trays of office that they have this same problem. If you restart them the cursor returns?

  Hi DaddyJeff,

  1. don't you make changes before the show?
  2. are you referring to the cursor in the area of user password on the login screen of Windows?
  3. when the cursor goes missing, the mouse pointer works on screen?

  It is difficult to say what is causing this problem. If the mouse pointer freezes or stops working, then we recommend you to reinstall the mouse. To do this, try the following steps:
  a. sign in to Windows.
  b. Click Start, click Run, type devmgmt.msc, and then click ok.
  c. in the list of objects, expand mice and other pointing devices.
  d. right click on the sub element and click on uninstall.
  e. unplug the mouse and plug it back.
  f. the Device Manager, select an item in the list, click the Action menu, click scan for hardware changes.
  g. check if the mouse is detected, if so, then install it.

  See mouse USB which is connected to a USB 2.0 hub is not detected by Windows XP

  
  Note: if the problem persists, restore the computer to an earlier time. See How to restore Windows XP to a previous state

  Visit our Microsoft answers feedback Forum and let us know what you think.

• margins for the printer so the words are not cut on the right side. What are the correct numbers for size printing letter?

  What are the correct for the printer margin settings so that everything is on paper, without truncating them.?

  What are the correct for the printer margin settings so that everything is on paper, without truncating them.?

  go to the icon for your printer, go to the page set up, size, A4 sheet? 19.05 mm pitch all sides, mine is set up for this and it seems ok. or what you like