Similar Questions

• On the use of the data file

  Hi all

  Last week I was simulating a crash of my database (Oracle 11.2.0.3, last group of patches) due to data files missing. So, I just removed the data file where my web application stores the data to see what's going to happen. But nothing happened, demand is rising and running and I was able to create new items in the user interface and save them. Normally, all these data are stored in oracle.

  After that I created a few articles, I bounced the database. Then I restored and retrieved the data file with RMAN. All items I created after the deletion of the data file were there.

  I would like to know, in which oracle order would write the DML commited to for recovery logs and the data file, so that I can explain the behavior of the application. I was wondering how the commited changes after deletion of the data file have been preserved even after the restoration of the data since the last backup RMAN file.

  Thanks for any input.

  Best regards

  Coby.

  every time that you agree to any transaction that the LGWR writes that transforms redo log buffer to restore the log file. When saturates redolog files then it launches checkpoint and writing each thin to the log file archive.

  DBWR writes data to the buffer cache of datafile only if it doesnot have free tampons with him.

  In your case, what could have happened is when you deleted the data file and made changes in the database. He could not write these changes to the data file and made the entery in the redo log file.

  so, after you have to bounce the database and restore the database and retrieve using the archiving log. you'd get output like media recovery complete and all the changes made to the database once you have deleted the data file, all the changes has returned to recovery.

• I CAN QUERY A TABLE EVEN AFTER THE DELETION OF THE DATA FILE

  Hello

  Can someone explain to me the reason why I am able to interview some tables even after the deletion of the data that are associated with file?

  SQL > select table_name, tablespace_name from dba_tables where owner = 'SCOTT ';

  TABLE_NAME, TABLESPACE_NAME

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

  TEST2 USERS

  TEST USERS

  SALGRADE USERS

  USERS OF BONUS

  USERS OF THE EMP

  USERS OF DEPT

  6 selected lines.

  SQL > exit

  Disconnected from the database to Oracle 11 g Enterprise Edition Release 11.2.0.1.0 - Production

  With partitioning, OLAP, Data Mining and Real Application Testing options

  [oracle@localhost orcl] $ rm /app/oracle/oradata/orcl/users01.dbf

  [oracle@localhost orcl] $ sqlplus scott/scott

  SQL * more: Production version 11.2.0.1.0 on Mon Mar 30 21:35:54 2015

  Copyright (c) 1982, 2009, Oracle.  All rights reserved.

  Connected to:

  Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production

  With partitioning, OLAP, Data Mining and Real Application Testing options

  SQL > select count (*) from test2;

  Select count (*) from test2

  *

  ERROR on line 1:

  ORA-01116: error opening the database file 4

  ORA-01110: data file 4: ' / app/oracle/oradata/orcl/users01.dbf'

  ORA-27041: could not open the file

  Linux error: 2: no such file or directory

  Additional information: 3

  SQL > select count (*) of the test;

  COUNT (*)

  ----------

  5000

  SQL >

  The first output is as expected. But why am I still able to query the table of test, even if the data file has been deleted.

  Hello

  The process of database have a file handle for the data file - this remains even when the file is deleted (it disappears from the normal file system navigation)

  You can see if you have lsof installed

  just try

  lsof | grep datafile_name

  Once the database is restarted and the released file handle so you will not be able to do this any more - and in fact you will get errors when it can't find the file.

  See you soon,.

  Rich

• Check the log to delete oracle data file to be deleted from the root user.

  Any body can help me find the log to make sure all traces of the data files that are deleted from the root to the hp - ux Server user (and the sys log has already been modified by the root user).
  So is there a way to check the database or deleted from server level to check track of log files data files.

  Salvation;

  If, you don't have no OS level verification that it is difficult to find to answer your quesiton. For example, our system of verification on OS (also root password no case) and Db level.

  PS: @Sybrand thanks, I missed that part.

  Respect of
  HELIOS

• Time Machine, delete the old files from MacAir?

  We had a MacAir and a MacPro at home and both were using backups time machine on our 2 TB Time Capsule. I sold the MacAir and replaced by a new MacBook. Can I delete the backups Time Machine of old MacAir and make room on my time Machine 2 TB for Macbook? I get a message of disk space for the first backup of the MacBook.

  Can I delete the backups Time Machine of old MacAir and make room on my time Machine 2 TB for Macbook?

  Yes you can.  Your next question may be 'how' to do it.

  Use the Finder to open the disc Time Capsule, named "Data", except if you have renamed the reader

  Here, you will see two files sparsebundle, each bearing the name of Mac, who has been the object of a backup

  Click on the name of the sparsebundle file on behalf of the Mac to highlight the file

  Click the gear just above the window, and then click place in the trash

  He is not coming back, so make sure that you delete the correct file.

  Once the deletion over... it should only take a few minutes... Turn off and restart the time Capsule and you should be all set.

• Cannot delete the plist file system.

  My Time Machine is not automatically back up my drive. He worked for some time (don't know why) and then stops working automatically. I tried to implement the procedure laid down by Linc Davis, delete the file com.apple.TimeMachine.plist, but make the message: 'com.apple.TimeMachine.plist' cannot be changed or deleted because it is required by OS X.  I tried to change the permissions in the file information window to include Administrator Read and Write (only has this permission system. Which translates the message: "the operation cannot be performed because you don't have the necessary authorization."

  Using the terminal window and sudo rm command produces the same message.

  I do a backup manually through the system preferences window, but it shows immediately that a backup disk has not been selected. Next time, I select the backup disk, perform a manual backup. Repeat the next time, I have run a manual backup.

  10.11.1 on new iMac, retina 5 K with 16 GB of memory running. Has made a migration to this previous computer Mac Pro 10.7.5.

  Also the Time Machine backup drive icon backup weather icon to see the Machine. Relaunch the Finder does not fix issue.

  Question: How can I delete the plist file?

  Thanks in advance for any advice.

  A bug in OS X 10.11.1 prevents automatic backups that happens when a desktop Mac (iMac, Mac mini or Mac Pro) is connected to a UPS (UPS) with the USB feature.

  Please, back up all data before proceeding.

  First, check the App Store for a later update to OS X. If it is available when you read this review, install it and see if the problem is resolved. I speak not beta versions.

  Otherwise, you can work around the bug as follows.

  These must be run as administrator. If you have only one user account, you are the administrator.

  Please triple - click anywhere in the line below on this page to select:

  sudo defaults write /Library/Preferences/com.apple.TimeMachine RequiresACPower 0

  Copy the selected text in the Clipboard by pressing Control-C key combination.

  Launch the Terminal application integrated in one of the following ways:

  ☞ Enter the first letters of his name in a Spotlight search. Select from the results (it should be at the top).

  ☞ In the Finder, select go utilities ▹ of menu bar or press the combination of keys shift-command-U. The application is in the folder that opens.

  ☞ Open LaunchPad and start typing the name.

  Paste in the Terminal window by pressing the command-V key combination. I tested these instructions only with the Safari browser. If you use another browser, you may need to press the return key after pasting. You will be asked for your login password. Nothing displayed when you type. Type carefully, and then press return. If you do not have a password, you will need to configure one before you can run the command. You can get a warning to be careful. Confirm. You don't need to display the warning.

  If you see a message that your user name "is not in the sudoers file", then you have not logged as an administrator. Log in as one and start over.

  Wait for a new line ending with a dollar sign ($) below what you entered. You can then quit Terminal.

  Restart the computer and test.

  (Credit for this solution for chrfr of logicielmac.com).

• TDMS-2503 error recovery - delete the index file does not

  My team worked an acquisition of data on some test machines, and I went today to begin the analysis of the data.  It turns out that two of the TDMS files that we generated cannot be opened in Diadem, Excel or use the controls file TDMS Opend in LabVIEW.  I also tried the repair of PDM tool, with the same result.  The test machine has since been demolished, so there is no way to re - run tests.  Is it possible to have the files was looking to see if all the data can be recovered?

  The files were generated with LabVIEW 2013 SP1.  Attemtped to open them in the same version of LabVIEW, and Diadem 2015, and the importer of excel (excel 2010).

  TDMS files are rather large (> 1 GB), but the tdms_index files that were generated with them were 0kB.  Delete the tdms_index files and re - open the TDMS files had no effect.

  A first look into files (using the primitives to open the binary in LabVIEW), the initial section of the appearance of correct files (readable metadata that matches from a work file in a non-working file).

  He seems to have no notable connection between the two files that will not open, nor the differences in the situation of these files for work files.

  Any help would be greaty appreciated.

  TDMS files are written in chuncks.  At the beginning of each chunck belongs to the human readable semi which is data such as channel names and groups, but contains no actual data.  Then follows the binary data.  The index is intended for all semi human readable file and any data.  This should make the reading of the file easier because the file offset and such are in the index file smaller.

  This being said if you have some sections corrupted in your DDHN file you can always get the data out of it.  There is a code floating around that pull each of the segments and find out what is the problem, then all allows you to get all the data before the wrong section.  This thread talking about it, and a short code displayed around page 3.

  http://forums.NI.com/T5/LabVIEW/corrupted-TDMS-file/TD-p/2165954

• is it safe to delete the temporary files?

  a game on MSN games froze the screen. The solution I got was to remove & reinstall Java, delete cookies, temp internet files.  I will lose any important data if I delete temporary files?

  Temporary files because they are are temporary and can be deleted safely. Of course, when you remove cookies from Web sites that you visit often preventing login/password information and then you will have to re-enter.

  The only time where it is not recommended to delete the temporary files is when you install a program, and if this program always needs to restart to complete the installation.

  It is rare that any who save their important data in temporary since the temp files folders are always flushed when the user run CCleaner or all files temporary cleaner.

• When I download compressed files, they go to the local > temp location, when I extracted all the files, they are sent to the My Documents folder. Can I go to the local > temp location and delete the zip file?

  When I download compressed files, they go to the local level > temp location, when I extracted all the files, they are sent to the My Documents folder. Can I go to local > temp location and delete the zip file? Knowing that I still have the data in the My Documents folder.

  Once they are checked, of course. If you want to keep a backup, you can move the zip file in your documents folder.

  In fact, you can delete everything in the temporary folder that is not currently in use. Best time to do this removal is immediately after the start, before launching other applications.

• You cannot change the data file

  Unable to Alter Database Datafile

  Hi all

  Using Alter database datafile ' C:\Oracle\APP\ORADATA\...\USERS01. DBF' SIZE 100M;

  getting this error.

  SQL > Alter database datafile ' C:\Oracle\APP\ORADATA\...\USERS01. DBF' SIZE 100M;
  Error report:
  SQL error: ORA-01237: do not extend datafile 4

  ORA-01110: data file 4: ' C:\Oracle\APP\ORADATA\...\USERS01. DBF'

  ORA-27059: reduce file size

  OSD-04005: SetFilterPointer() failure, unable to read the file

  s/o-error: (OS 112) there is not enough space on the disk.

  01237 00000 - "cannot extend %s datafile.

  * cause: year Operating system error has occurred during resizing.

  * Action: Resolve the cause of the error of operating system and start the command

  I understand that the OS space is full and I guess this isn't specific Oracle error, but certainly an OS level error, someone could suggest me how to deal with the erasure of space, is it possible to erase and reuse the data files? Please suggest.

  Help out me

  Thank you and best regards,
  Cabbage

  You need create more space by deleting unnecessary files or narrowing of the files.

• Deleting the .db files

  Hello
  
  We want to write a script that will remove all .db files when the user wants. We noticed that in addition to the .db files that contain regular stored data, there are files with a .db extension even what are internal files I don't know what's in these files but, I fear that the metadata they contain are beyond the contents of the DB and take them off can cause damage to the system, while the user is interested simply delete the data stored in the database not to spoil the system.
  The problem is that is no way to separate between these files and the DB content that both files have the same extension.
  Any idea?
  
  Published by: 975807 on December 17, 2012 12:06 AM

  I want to just make sure: I can count on this format? I mean, isn't that possible internal files with a prefix other __db will exist?

  Your original question was on internal database files. Replication is the only part of Berkeley DB that uses internal databases. If you exclude the files corresponding to __db*.db, you will not remove our internal database files.

  If you use replication and you plan to remove all user databases, you plan to do on all sites or just a customer? Continue replication after the deletion of all user databases? Why would you use the file system to perform deletions rather than remove the Berkeley DB or dbremove call to remove each database?

  I am less familiar with all other internal files to all other parts of Berkeley DB. I think we use the prefix __db for each of them, but I'm not 100% sure. You may want to post this more general question on the forum of Berkeley DB:

  Berkeley DB

  We cannot make any guarantees on the internal file names in future versions.

  And another question: assuming that only delete us files that are not internal files, it has the right to remove some .db files, or there might be all the dependencies between files so that if delete us a few of them this will damage the other features?

  If you use Berkeley DB replication, I would not recommend that you remove a subset of your user databases by using the file system. It will compromise the consistency of your replicated sites, and you will have to reset them from scratch. When you use replication, if you want to remove the individual databases, you must use the calls to delete or dbremove of Berkeley DB to do this on your master so that these changes can be replicated correctly to customers.

  I am less sure of the answer if you are not using replication. I think that there are some cases where databases have reports of consistency between them. For example, the secondary index and abroad of Berkeley DB features require consistency between multiple databases. And, of course, an application could easily have its own requirements of consistency between databases. This seems risky to me, but you can get another opinion on the general forum of Berkeley DB.

  Paula Bingham
  Oracle

• Way to delete a data file

  Version: 11.2.0.2
  Platform: AIX 6.1
  
  My first post on this has been moved by someone from the community of ASM. I deleted this post and I post it here.
  
  Our tablespace application ran out of space, and we had no free space left in our system of data files. We had little space left in the file system for archiving logs. Because it was urgent, I added a file of 10 GB data to this tablespace BUT in the files system to archive logs. The next day, administrators added system space to our system of data files. Now, we have enough space in the data files system and we want to move the data file mentioned above for the file system to store the data files.
  
  The data file resides in the archive disk group

  /ltmprod_arch/LTMPROD/cmdata07.dbf

  I want to delete the data above and add it in the file system for the data: /ltmprod_data

  /ltmprod_data/LTMPROD/cmdata07.dbf

  What is the cleanest way to do this?
  
  Published by: Kavanagh on March 27, 2012 08:08
  Removed the word disk group

  This can be done without a DB downtime. But the tablespace must be taken offline

  Step1. Take the tablespace offline
  ALTER TABLESPACE yourtbs OFFLINE ;
  
  Step2. Take a bkp of the datafile and move to the new location
  mv /ltmprod_arch/LTMPROD/cmdata07.dbf /ltmprod_data/LTMPROD/
  
  step3.
  ALTER TABLESPACE yourtbs RENAME DATAFILE '/ltmprod_arch/LTMPROD/cmdata07.dbf' to '/ltmprod_data/LTMPROD/cmdata07.dbf';
  
  Step4. Bring the tablespace online
  ALTER TABLESPACE yourtbs ONLINE ;
  

• manually removed some of the data files.

  There was a problem in AIX server with regard to space, he I manually deleted some of the files of the server.now data I can solve or stop, or restart the database.
  
  ORA-01116: error opening the file base of 41
  ORA-01110: data file 41: ' / data2/oradata/PULSEU02/pulse_st_idx_hgh_002.dbf'
  ORA-27041: could not open the file
  IBM AIX RISC System/6000 error: 2: no such file or directory
  
  How can I solve this problem. There is no backup because it was such a performance so dev server.

  sunnymoon wrote:
  It is one of the data files that other two data files are data... IAM fine with data loss, but how can I save the one remaining.

  Follow the steps below: -.

  The judgment 1).

  2.) sys/xxx sqlplus as sysdba

  Mounting database Alter 3.)

  4.) alter drop offline database datafile '';

  5.) Alter database open

  HTH

  -Vishwanath

• Cannot delete the downloaded file.

  I made a simple upload form and try to use the cffile to download, rename, and delete the original file. Thus, the process goes like this.

  Step 1: The user will browse their computer to capture the image they would like to download (ex: picture1.jpg). then click on the button transfer.

  Step 2: Use a cffile which would be to download the file. (picture1.jpg)

  Step 3: Other cffile to rename the original to the user ID picture that I have in the database. (renamed in 1 ".jpg")

  Step 4: Then another cffile to delete the original picture file, so there is only 1 picture, which is that of the renowned cffile. (on server, deleted picture1.jpg 1.jpg)

  hope that makes sense. Here's the code I used to try to get there.

  I always get an error on the part of remove code.

  = Download form =.

  < cfform enctype = "multipart/form-data" method = "post" >

  < h1 > photo download form < / h1 >

  < cfinput type = "file" name = "fileUpload" required = "Yes" message = ""-must add file! "/ >"

  < cfinput type = "hidden" name = "UserID" value = "#URL. User #">"

  < cfinput type = "submit" name = "file_submit" value = "Upload File" / > < br / >

  < / cfform >

  < isDefined ("fileUpload") cfif >

  < cffile action = "upload".

  fileField = "fileUpload".

  destination = "C:\ColdFusion9\wwwroot\website\pimages".

  accept = "image/jpg, image/jpeg, image/pjpeg.

  nameconflict = "makeunique" >

  < font size = "+ 1" > the file has been downloaded. < / make >

  < cffile action = "Rename".

  source = '#FORM. "FileUpload".

  destination = "C:\ColdFusion9\wwwroot\website\pimages\ #FORM. "UserID # .jpg" >

  < cffile action = 'delete '.

  file = 'C:\ColdFusion9\wwwroot\website\pimages\ #FORM. FileUpload #">"

  = Download form =.

  K0rrupt wrote:

  So now my question is this. Is it possible that I can remove 'everything' in the C:\ColdFusion9\wwwroot\website\temp_images\ if I had to make another file of cfm for this function?

  Make sure that some files are in C:\ColdFusion9\wwwroot\website\temp_image. Then complete the following test beforehand.

  This lets you see how ColdFusion stores the directory as a query object. The code that you need follow.

  is the deletion of files in the directory

• RMAN-06056 and the data file does not exist

  Hello
  
  I'm working on Oracle 9i Database (9.2.0.8.0) on AIX 5.2 and we try to run a full backup of RMAN, but it seems to be failing with an error as follows;
  
  From backup to 27-SEPT.-10
  using the ORA_SBT_TAPE_1 channel
  using the ORA_SBT_TAPE_2 channel
  RMAN-00571: ===========================================================
  RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.
  RMAN-00571: ===========================================================
  RMAN-03002: failure of the backup to 27/09/2010 01:33:17 command
  RMAN-06056: could not access datafile 23
  
  I checked the v $ datafile and it shows that it is in a State of recovery.
  
  Select the State, file No., name from v$ datafile
  where status <>'in LINE '.
  order by 1
  
  RECOVER /u06/oradata/test_sys/data/msg_log06.dbf 23
  
  The file does not exist at the level of the BONE and the RMAN, it shows as;
  
  RMAN > resync catalog
  + 2 >. +
  
  from full resynchronization of the recovery catalog
  full complete Resync
  
  RMAN > outline report;
  
  Report of the database schema
  K - bytes Tablespace RB segs Datafile file name
  ---- ---------- -------------------- ------- -------------------
  819200 + 1 SYSTEM YES /u011/oradata/test_sys/data/system01.dbf+
  
  + 23 0 MSG_LOG NOT /u06/oradata/test_sys/data/msg_log06.dbf+
  
  The associated tablespace cannot be just deleted given that some other files of dependent data. The RMAN script has also been changed
  
  change archivelog than any overlap;
  backup database more archivelog entry remove
  Skip inaccessible;
  
  But the backup fails again, please advice.
  
  Concerning

  Run

  LIST OF BACKUP OF THE FILE 23

  to see if you have previous backups. If you have a backup of the data file, you can then
  Put the offline data file
  RESTORE the data file
  RECOVER the data file.

  If you want to 'ignore' this test taking it Offline datafile
  ALTER DATABASE DATAFILE OFFLINE 23

  then use "SKIP OFFLINE" in your RMAN BACKUP DATABASE command.

  Hemant K Collette