Is is possible to read a file while writing the same file at time in java?

Hi ,
I am reading a MSAccess file (mdb) from one location to another location .but the source file is an online database which will chage regularly .so while reading that file i am getting error like
FileNotFoundException.
java.io.FileNotFoundException: c:\Msaccess\db2.mdb (The process cannot access the file because it is being used by another
s)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at read.main(read.java:16)

alphabet soup,
Yes, windows helpfully prevents two processes from accessing a file simultaneously. Operating Systems on the other hand uniformly support it.
Which probably doesn't help you very much, as I imagine that you can't just up and change the source machine over to *nix, but there you have it.
You'll just have to close the program which has the database open, copy the database, and restart the program which uses the database.
keith.
Message was edited by: corlettk

Similar Messages

  • Appending multiple *.csv files while retaining the original file name in the first column

    Hi guys it's been awhile.
    I'm trying to append multiple *.csv files while retaining the original file name in the first column, the actual data set is about 40 files.
    file a.csv contains:
    1, line one in a.csv
    2, line two in a.csv
    file b.csv contains:
    1, line one in b.csv
    2, line two in b.csv
    output.csv result is this:
    I would like this:
    a.csv, 1, line one in a.csv
    a.csv, 2, line two in a.csv
    b.csv, 1, line one in b.csv
    b.csv, 2, line two in b.csv
    Any suggestions to speed up my hobbling attempts would be aprieciated
    Thanks,
    -SS
    Solved!
    Go to Solution.

    What you could do is given in the attachment.
    Started with 2 files :
    a.csv
    copy of a.csv
    Both with data :
    1;1.123
    2;2.234
    3;3.345
    Output :
    a.csv;1;1.123
    a.csv;2;2.234
    a.csv;3;3.345
    Copy of a.csv;1;1.123
    Copy of a.csv;2;2.234
    Copy of a.csv;3;3.345
    If you have more questions, just shoot
    Kind regards,
    - Bjorn -
    Have fun using LabVIEW... and if you like my answer, please pay me back in Kudo's
    LabVIEW 5.1 - LabVIEW 2012
    Attachments:
    AppendingCSV.JPG ‏73 KB

  • Insert an attachment while writing the same

    Good night,
    Do you know how we can to insert an attachment/file in an email but while writing the same, for example, when we reply a message "... please see the attached file..." and insert then the file.
    I only see that this only is possible if we for example press on the file (on Docstogo) and send, and then e open a new email already with the attachement.
    Could you please help me.
    Thanks

    alphabet soup,
    Yes, windows helpfully prevents two processes from accessing a file simultaneously. Operating Systems on the other hand uniformly support it.
    Which probably doesn't help you very much, as I imagine that you can't just up and change the source machine over to *nix, but there you have it.
    You'll just have to close the program which has the database open, copy the database, and restart the program which uses the database.
    keith.
    Message was edited by: corlettk

  • I worked with files in LR that were originally on my C drive, then were moved to an external HD for storage. I now want to do some more work on those files (which have the same file name as on the C drive). I plugged the drive into my computer and it show

    I worked with files in LR that were originally on my C drive, then were moved to an external HD for storage. I now want to do some more work on those files (which have the same file name as on the C drive). I plugged the drive into my computer and it shows in LR under folders as the F drive and the little green light is on, but LR is showing only the first 6 files and not the remaining 200 or so. How do I expand the F folder to expose all files?

    I worked with files in LR that were originally on my C drive, then were moved to an external HD for storage. I now want to do some more work on those files (which have the same file name as on the C drive). I plugged the drive into my computer and it shows in LR under folders as the F drive and the little green light is on, but LR is showing only the first 6 files and not the remaining 200 or so. How do I expand the F folder to expose all files?

  • How to read from and write into the same file from multiple threads?

    I need to read from and write into a same file multiple threads.
    How can we do that without any data contamination.
    Can u please provide coding for this type of task.
    Thanks in advance.

    Assuming you are using RandomAccessFile, you can use the locking functionality in the Java NIO library to lock sections of a file that you are reading/writing from each thread (or process).
    If you can't use NIO, and all your threads are in the same application, you can create your own in-process locking mechanism that each thread uses prior to accessing the file. That would take some development, and the OS already has the capability, so using NIO is the best way to go if you can use JDK 1.4 or higher.
    - K
    I need to read from and write into a same file
    multiple threads.
    How can we do that without any data contamination.
    Can u please provide coding for this type of task.
    Thanks in advance.

  • Sender File Adapter picking the same file twice

    We are facing a weird issue with File Sender Adapter
    We are using PI File Adapter ( NFS ) to read files for a NFS folder and
    processing those in PI.Normally it works fine. But for a scenario we
    are noticing it sometimes process the same file twice before archiving,
    thus duplicating the financial postings.
    What we have is :
    File Sender Adapter - NFS, Polling interval 60 secs, and Processign
    mdoe Archive. File name includes Wildcards - JE_Upload*.txt
    what we are noticing is that :
    when it picks up a file, it immediately polls again to check for
    another file, and sometimes the file is not yet archived so it picks up
    and reprocess the same file.
    If you see the message below, both belong to the same file, and it
    picked up the same file again in 12 secs after processing it the first
    time
       Successful 02.11.2009 15:01:00 02.11.2009 15:01:01   APMANUAL     urn:bl:i2g:003:100
    SI_SKF_FIDOC_OB XI Message
       Successful 02.11.2009 15:00:49 02.11.2009 15:00:50   APMANUAL     urn:bl:i2g:003:100
    SI_SKF_FIDOC_OB XI Message
    Anyone seen this behavior before?

    Hi,
    Please check the script which creates file in source NFS Folders. There is possibility that script is making change in file when PI is picking up the file.
    When PI picks the file first time it creates one message ID in system. After that if script is making any change in file without file name change (This need not necessary data change), for PI it becomes new file and new message gets generated in PI for same file.
    This error normally comes when File adapter is not able to archive file succesfully. For eg. file with same name alredy exists in Archive folder.
    File adapter generates the new message id whenfile get modified(eg.change in its length or data change) even though
    the file name is same and when file get change ,XI file adapter thinks that its new file and hence generate the new message id for same file.
    If file has same name and notmodified then XI adapter will not generate new message id and will keep on throw the error till you remove that file with same name from the
    archieve directory.
    -Warm Regards,
    Gouri

  • HT201210 I have done all of the things on this list, to include editing the hosts file with no the same error each time (3194).  I am trying to restore my iphone 4 ios 6 to get it unlocked.  Diagnostics show no issue communicating with apple. Help.

    I am trying to restore my iphone 4 ios 6 to acheive unlock.  hit restore and it unloads software, confirms with apple then displays the 3194 error.  I have turned off my virus scanner, unplugged all usb except for iphone, edited the hosts file and run diagnostics which showes communication with apple is fine.  What do I need to do to get my ipone to restore?

    There is nothing wrong with the OS update.
    Delete ALL your email accounts.
    Restart Playbook
    Put the accounts back and ensure they are all set with PUSH ON.  Manual (push off) will burn battery.
    Similarly delete your wifi connections and add back when required. 
    Turn off wifi is not connected to wifi. 
    Any "hunting for connection" in email or wifi will burn up battery.

  • How to pick the sender files dynamically using the same File CC

    hi,
    My requirements is like , Same Sender File communication Channel has to pick up the different file which are having differnt file conventions and which are placed in different directories .. then it has to send to diffentn directories in the receiver side..
    how to do this?
    Regards,
    Balaji

    Hi Stefen,
    They have tried the Generic Sender File adapter concept to handle filenames with different names and from different directories instead creating many file channels. In my project many channels are configured as generic File sender channel.. And Eventhough the Generic file sender channels processing the filenames from different directories, all processed files are archieved in one common directories.. now they wanna generic solution to archieve the processed files in a particular folder based upon the directories they got processed from....
    and There are no such message mapping or Operation mapping since they used AAE concept. So do you  have any idea to make Generic File sender channels to archieve the files as per requirements i said before??
    Two doubts can we use like Module programming or can we do any OS level command acchieve this ? if yes please explain in detail .... Please help me out here
    please refer the following link .. exact way we used in our project
    http://wiki.sdn.sap.com/wiki/display/XI/SingleSenderFileCCForMultipleDirectories
    Regards,
    Balaji
    Edited by: Balaji Pichaimuthu on Feb 5, 2010 5:55 AM

  • Xml file datamodel always the same file

    Hello,
    i have this kind of issue, i configured my ODI in the topology to load an external Xml file that will arrive every day. My load works good but i'm seeing now that ODI doesn't know that the file that i point to with configuration is different from one launch to another. It doesn't realize that the data inside are changed. I'm doing some test so every time that i receive a new xml file i rename the old one and i put there the new one. In my production system will be like this and scheduled but i'm scared about the fact that my ODI is not knowing the difference between my old file and the new one. Only if i close it and start it again he realize that the file is new and load the new data.
    Have i forgot some configuration in some place? If yes where is and how i've to manage?
    Thank you in Advance.
    Corrado

    Hello C.
    Actually it's an ODI Procedure.
    Try this:
    PACKAGE_XML (your XML process package)
    A) ODI PROCEDURE 01 (insert this step)
    B) XML INTERFACES
    C) ODI PROCEDURE 02 (insert this step)
    Configure ODI PROCEDURES like this:
    ODI PROCEDURE 01
    Technology: XML
    Comand on Target: SYNCHRONIZE FROM FILE
    Schema: Your Source XML Schema.
    Commit: Commit.
    ODI PROCEDURE 02
    Technology: XML
    Comand on Target: SYNCHRONIZE FROM DATABASE
    Schema: Your Target XML Schema.
    Commit: Commit.
    That is also explained on ODI Docs.
    Let me know if that helps.
    []'s

  • Can I create DNG files while at the same time keeping the original camera RAW images?

    I wish to create DNG files for my existing Lightroom catalogue, but also wishe to retain the original camera RAW images. If this can be done can you please advise how I go about it as I seem only to be able to find an option for conversion to DNG only.
    Thanks

    In the Conver-to-DNG dialog, you have the option to have the original Raw file deleted or not:
    But, after the conversion, only the DNGs will show up in the catalog, not the original Raw images also.
    Beat

  • Anyone knows the maximum amount of simultaneous file connection (for the same file) for:

     a) READ
    and
    b) READ / WRITE for both SERVER2008R2 A N D SERVER 2012 ?
    Thanks
    [email protected]

    I belive you should look for any limitations in current tcp connections, and not specificly for the file service it self.
    I think you will reach the capacity of what the storage can provide, which most likely will result in read/write timeouts,  before you reach the maximum number of current tcp connections.
    Best Regards,
    Jesper Vindum, Denmark
    Systems Administrator
    Help the forum: Monitor(alert) your threads and vote helpful replies or mark them as answer, if it helps solving your problem.

  • I am having a silly problem with Keynote and Pages. When ever i open a file, it opens the same file twice ?

    When ever i open a file using key note or pages. The files opens up two times. I the ave to close one version of the file and only then can begin work.
    Could you please help me how to get rid of this ?

    try routine software maintenance:
    1 - shut down the Mac
    start up the Mac again with the shift key pressed, release when Mac logo appears, let the Mac boot up it will take longer as it will be repairing the software
    2 - Applications > utilities > disc utility > select the system drive > disc first aid > repair permissions
    reboot normally and see if that helped

  • How to print .sql file name in the same file using sqlplus

    Oracle 10g on Linux platform.
    I am trying to print the name of .sql script file in that file but could not. Following is the file:
    test.sql
    select '&0' from dual;But instead of printing, it is asking for input:
    SQL> @test.sql
    Enter value for 0: Can any body give me a hint as how can i print the file name.

    Use this
    SELECT FNAME_KRBMSFT AS name FROM X$KRBMSFT
    and see
    SQL> create or replace procedure get_dir_list
    2 (p_directory varchar2)
    3 is
    4 l_null varchar2(100);
    5 l_directory varchar2(100);
    6 BEGIN
    7 l_directory := p_directory;
    8 sys.dbms_backup_restore.searchfiles(l_directory, l_null);
    9 FOR x IN (select fname_krbmsft fname from x$krbmsft) LOOP
    10 dbms_output.put_line(x.fname);
    11 END LOOP;
    12
    13 END;
    14 /
    Edited by: HuaMin Chen on Jun 26, 2012 12:26 PM

  • While saving the Ai file its taking much time

    I am using windows 7 and Ai CC, when i am working on files while saving the Ai file its taking much time. I got 4 GB RAM. now i got better system too with ram of 6GB. stillthe Ai is taking much time to save 300 MB file.

    Thank you Jdanek.
    1. I am saving the file in my local HDD only.
    2. Scratch disk is F Drive [100 GB free space], there no data is stored.
    3. Even i increased the Virtual memory too.
    4. Now I switched off the "Save with PDF compatability" too,  No luck!

  • When saving a File OS Is Creating Multiple Folders With The Same File Name

    Not sure what I changed but, now when I save a any file (ppt. word, Keynote,Pages e.g.,) to the desktop or any other location the OS will also create multiple file folders with the same file name as the file I'm saving. Inside the folders are what appears to be files locating the saved files. What can I do to fix this problem?
    I'm using the 10.7.2 version
    MacBook Pro

    Misio wrote:
    It looks like a finder bug. To replicate, I surf to any website, I right-click on a jpg image, select "Save Image As" and in the window that pops up I type in the filename "000.jpg", I select the folder Pictures, and click on Save.
    BTW, I don't know why, but the file was saved only as "000" without the file extension ".jpg". Does anybody know why?
    the extension is simply hidden. go to the get info panel for the file and uncheck the option to hide the extension.
    Then I surf to another image, and again I save it as "000.jpg" and now it asks me if I want to replace the existing filename, although the existing one is "000" and I try to save as "000.jpg", so I say yes, and then magically the file is saved with the full filename including the extension "000.jpg"
    When I did it a couple of times, always saving image as "000.jpg" from various sources, I ended up with two distinct files named "000" and both in the same folder Pictures.
    Please advise.
    it sounds to me like you saved one file as 000.jpg and the other and 000.jpg.jpg.
    check the info panels for the files for full names to verify if this is the case.

Maybe you are looking for