Extract a BLOB > 32 k of 11g r2 on file system

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• How to write the xml content of a file (Blob data Type) with other columns in file system

  Team,
  We are currently working on oracle 11 g. Suppose that we consider the SCOTT. EMP table for our creation of the table.
  All existing columns of SCOTT along. EMP table allows to assume that this table has an additional column name emp_xml, which is of TYpe of BLOB data and it holds xml data.
  the size of the data blob for each record in this col is greater than 32 KB (normally about 1 GB), now I want to write the contents of this column along
  with enmae, empno, hiredate into an external file. Assume that if we are only to the BLOB column that is emp_xml then the code below works

  Start

  for c in (select emp_xml from your_table)

  loop

  dbms_xslprocessor.clob2file (emp_xml.getclobval (), 'YOUR_LOCATION', 'YOUR_DYNAMIC_FILENAME')
  end loop;
  end;

  but I want empno, enmae, hiredate with blob emp_xml written in the external file. Any assistance in this case welcome.

  Concerning

  max_linesize

  Maximum number of characters for each line, including the newline character, for this file (minimum 1, maximum value 32767). If not specified, Oracle provides a default value of 1024.

  Defines how much you can read or write to a single call. I have to loop through the clob object and I write a pieces of 1024. So there is no limit to how much she can write. Just test it, IT will WORK!

• Blob file extraction and storage in the file system

  To reduce the size of the database, I want to launch a program to run submit a page that contains a control file download, which will extract the BLOB file in Pb and store it in the operating system.
  
  Any suggestions on how I can accomplish this?

  Karthik,
  The thread of the forum is to have downloaded blob by using the browser and do not do has the server OS.

  And the second link (the only SQL) uses a library based on java called PLSQL OS COMMAND. It comes with a lot of features to fetch/modify/set file system files, run the script and return the output script and could be recommended for someone who makes those extensively. It would probably be an overdose for this purpose (and in addition need to java and grants to users and directories privileges).

• dynamically create files (.txt/.doc/.css etc.) and save the table as BLOB without file system reference

  Hi guys,.

  IAM trying to find a plsql/pkg process that creates a file for example myiphones.txt (with content) and save this file as BLOB directly in a table in the DB (not on file system moreove there is no access to the file system) - Ive studied this but nothing about other than as_pdf3 that iam still working on.

  Here are the summarized steps:

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

  1. run plsql to create a single file like myiphone.txt,

  2. in this (myiphone.txt) inserts a record content from another table EMP as,

  MYiPhone.txt

  ============

  Greg Taylor,

  Mike Owen

  3 then finally record this (myiphone.txt) in another table MYFILES as BLOB - Note Please that I don't want to not refer to file system manager and I have not access to it for the time being,

  I hope it is clear

  no idea about the way to handle this is appreciated?

  Thank you.

  You can try this:

  Data are from a clob table.

  DECLARE
    L_BLOB BLOB;
    L_CLOB CLOB;
    L_DEST_OFFSET INTEGER := 1;
    L_SRC_OFFSET INTEGER := 1;
    L_LANG_CONTEXT INTEGER := DBMS_LOB.DEFAULT_LANG_CTX;
    L_WARNING INTEGER;
    L_LENGTH INTEGER;
  BEGIN
  
    -- create new temporary BLOB
    DBMS_LOB.CREATETEMPORARY(L_BLOB, FALSE);
  
    --Select CLOB
    SELECT CLOB_VAL INTO L_CLOB FROM MY_TABLE;
  
    -- tranform the input CLOB into a BLOB of the desired charset
    DBMS_LOB.CONVERTTOBLOB( DEST_LOB => L_BLOB,
    SRC_CLOB => L_CLOB,
    AMOUNT => DBMS_LOB.LOBMAXSIZE,
    DEST_OFFSET => L_DEST_OFFSET,
    SRC_OFFSET => L_SRC_OFFSET,
    BLOB_CSID => NLS_CHARSET_ID('WE8MSWIN1252'),
    LANG_CONTEXT => L_LANG_CONTEXT,
    WARNING => L_WARNING
    );
  
    -- determine length for header
    L_LENGTH := DBMS_LOB.GETLENGTH(L_BLOB);  
  
    -- Your custom INSERT INTO statement
    INSERT
      INTO MY_TABLE
       (NAME,
        BLOB_FILE,
        BLOB_LENGTH
       )
       VALUES
       ('lala.txt',
        L_BLOB,
        L_LENGTH
       );
  
    EXCEPTION
    WHEN OTHERS THEN
    DBMS_LOB.FREETEMPORARY(L_BLOB);
    RAISE;
  END;
  

  Concerning

  Tobias

• VMware tools - impossible to extract tar to install - read the file system only

  I can mount the CDrom to install vmware tools - I knew root

  Run tar xzf

  No such file or directory

  tar: vmware-tools-distrib: cannot mkdir: read-only file system

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  tar: vmware-tools-distrib: Cann

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  Extract them in / tmp.

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• How to read the data of BLOB and save to the file system

  Hi friends.
  
  I have called DEMO table there image stored as a BLOB. now my requirement is to know how to read the data of BLOB and saved in the file system. is there a procedure
  to read the blob object and stored in the file system. pls suggest me with an example.
  Thank you

  HI - don't know what version you have, but have a read through this:

  http://www.Oracle-base.com/articles/9i/ExportBlob9i.php

  Hoek link is to import the blobs in the db, it is export, to a file.

• For the binary cache as a BLOB or file system?

  I posted this question of AIR on the Flex forum, which did not get much attention, so now I try here which seems more ideal.

  My question in detail:

  Would it be best to store binary files (Images and SWF files) as blobs in the database or to have a URI pointing to them on the user the system of files?

  I am above all a Developer Flex, which did not have much time to development of databases, but realizes there is 2 options to be taken for the storage of binary files in an AIR application.  Given that I have not been exposed to the db development I'm not sure which is the best way.

  You are right there are two options, and they are both commonly used.

  Storage on the file system is a little easier to implement for many and can be a little more proformant with less coding and decoding in progress.  But he has an increased risk of problems of syncornazation since there are many ways for objects of file to be modified, moved, or deleted without changing anything and the database.  Thus, we should build logic that will check the existence of the file at the level of the URI before trying to serve.

  Store the file in the database reduces the problems with syncornazation.  But it takes a little longer to implement and could involve much more data in the database itself, which may or may not be a problem depending on the configuration.

  But either is a choice of acceptiable and a little work with the various advantages and disadvantages of a.

• Extract and save xml to file system nodes

  Hi all

  I'm looking for some great ideas for how best to extract a complete xml file xml nodes and save each in a path specified in the file system, by incremented for each file... file name File1, 2, 3, 4.

  I have a process in workbench that takes an xml as input file (XML full below). The complete solution, I'll have an unknown number of child nodes to record.

  Full XML file with two records. Is in a process variable "xmlComplete" - type = xml:

  ==================

  < archiveIndexRecords >
  < indexRec >
  < i1 > 7173 < / i1 >
  < i2 > 1405781111 < / i2 >
  < i3 > 71709999999 < / i3 >
  < / indexRec >
  < indexRec >
  < i1 > 6226 < / i1 >
  < i2 > 1405782222 < / i2 >
  < i3 > 71708888888 < / i3 >
  < / indexRec >
  < / archiveIndexRecords >

  You want to save each book of the child (< indexRec >) on the file system. Lets say C:\temp\records\file1.xml (..) (2 xml etc.) and with a content as.

  < indexRec >
  < i1 > 7173 < / i1 >
  < i2 > 1405781111 < / i2 >
  < i3 > 71709999999 < / i3 >
  < / indexRec >

  ...

  What type of solution would you advice? A script executed with loop or a loop of setValue steps?

  Hope for the grand entrance. do not hesitate to ask for more information if needed, thank you

  Yours,

  Thomas Groenbaek

  Hello

  You need create a loop in your process on Workbench. First count nodes and assign a variable of integer type.

  /process_data/@number = count(/process_data/xmlComplete/archiveIndexRecords/indexRec)

  Then you need to get the data from the first node to write to the disk.

  / process_data/FirstNode = / process_data/xmlComplete/archiveIndexRecords/indexRec [number (/process_data/@i)] (I did another variable of integer type that is 1 as default.)

  When you get the data from the first node set a document variable and write down on the disc. Then add 1 to the variable i and control it with the number variable (number of nodes). Decide for the next record or not.

  You can find an example of how creating loops in below link.

  http://muratkuru.com.tr/?p=106

  Murat

  www.muratkuru.com.TR

• file system vs mysql blob object

  Hello

  are there Ant performance or issues of web traffic using blob files mysql as source for slideshow, web application?

  Is better to use the file system?

  Thanks in adv

  r

  not really.  There is more memory space needed to maintain a mysql database but no problems significant permance.

• installation of 10g and 11g on the same system?

  I have Windows XP and you have installed the database 10g. Can I install 11g on the same system and I need to use one of the database?
  
  Thanks in advance.

  As long as you succeed ORACLE_HOME correctly to work on your different databases, having more than one version of Oracle on a server is not a problem.

  Nicolas.

• Access the Blob of Table data and save to file local system

  I have a table that has a blob column in which most of the regular file types are downloaded and stored.
  
  What is the best/better way to select/query this table and write all of the content of the BLOB in a local file system?
  
  Using oracle 10.2.
  
  Is it possible to sort the batch and save them on my local drive?
  
  Any help is appreciated.
  
  Thank you.

  Try to reset the l_pos to 1 for each iteration in your loop of file name:

  create or replace procedure save_to_file_third
  is
   l_file      utl_file.file_type;
   l_buffer    raw(32767);
   l_amount    binary_integer := 32767;
   l_pos       integer := 1;
   l_blob      blob;
   l_blob_len  integer;
   myfile_name varchar2(250);
  
   cursor c1 is
    select id from security where file_name1 is not null;
  
  begin
  
   for i in c1 loop
    -- Get LOB locator
    select file1, file_name1
      into l_blob, myfile_name
      from security
     where id = i.id;
  
    l_blob_len := dbms_lob.getlength(l_blob);
    l_pos      := 1;  --re-init l_pos var
    -- Open the destination file.
    l_file := utl_file.fopen('MY_FILES', myfile_name, 'wb', 32767);
  
    -- Read chunks of the BLOB and write them to the file
    -- until complete.
    while l_pos < l_blob_len
    loop
     dbms_lob.read(l_blob, l_amount, l_pos, l_buffer);
     utl_file.put_raw(l_file, l_buffer, true);
     l_pos := l_pos + l_amount;
    end loop;
  
    -- Close the file.
    utl_file.fclose(l_file);
  
   end loop;
  exception
   when others then
    -- Close the file if something goes wrong.
    if utl_file.is_open(l_file) then
     utl_file.fclose(l_file);
    end if;
    raise;
  end save_to_file_third;
  

• Extract information from signature in VBA to a PDF file

  Hi all

  I need to extract information from signatures of PDF files in VBA (mainly the name of the signer and the date of signature. PDF files have several signatures inside them).

  So I have a few questions:

  -Are there an example somewhere to do such a thing?

  -I need Acrobat Pro for this? This is an important point because the code is supposed to be run on machines where ONLY Acrobat Reader is installed.

  -If the above is not possible, do you know a command line utility that would do the thing (and I could run from my VB code)

  Thank you for your help

  Emphyrio

  As already mentioned, you will need Adobe Acrobat Standard or Pro VB/JS bridge. If you want to make this work with just the free reader, you are limited to what you can do in JavaScript environment. Basically, this means that you must open the file in the player and then for example use a menu item to trigger functions to get information about signatures in your file. For example, this information may appear on a dialog box, and you would be able to copy & paste from this dialog (which means no VBA integration at all).

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  Hello

  Is there a way where we can extract the dimensions (width x height, in picas), color data (RGB, CMYK or grayscale) and the resolution of the image (in pixels per inch dpi). for a jpeg file, which was created in PS CC 2015.5

  Maybe a script or plugin.

  FYI - we want to make a batch to process more maybe 300 to 400 files to extract the metadata.

  Concerning

  Ray

  OK, here's the code ExifTool :

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  The output looks like this (reformatted for display of .csv):

  = /Users/loggedinusername/Desktop/test/IMG-CMYK.jpg

  Image width: 2448

  Image height: 3264

  Color components: 4

  X resolution: 72

  Resolution Y: 72

  Resolution unit: inch

  = /Users/loggedinusername/Desktop/test/IMG-Gray.jpg

  Image width: 2448

  Image height: 3264

  Color components: 1

  X resolution: 72

  Resolution Y: 72

  Resolution unit: inch

  = /Users/loggedinusername/Desktop/test/IMG-RGB-SFWL.jpg

  Image width: 2448

  Image height: 3264

  Color components: 3

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  You may need to do a find/replace in a spreadsheet to replace the column component color, change 1 in grayscale, RGB 3 and 4 in CMYK.

  I can explain the CLI code more in detail if necessary (I applied to false syntax highlighting to help break the elements). This code is formatted for Mac OS, MS Windows would use all right double quotation marks ' and the------expected file path of formatting. "

  I hope this helps.

• Access to the file system for Extraction and load testing

  Hello
  
  I did a study with me the different techniques of Extraction and load using Oracle database as a source for the extractions and targets for loads.
  
  I would like to run the same tests on my test service to compare the run times.
  
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  My test service will include limited access to a directory read / write flat files?
  
  Thanks in advance,
  Stew of Ashton

  Stew,

  The cloud of Oracle does not support external tables, nor access to the OS files (utl_file etc.). Only, you have sftp and download access via Apex or SQL Developer to load or import data. Someday, there may be a place to store files in the cloud, but I don't know the details of this.

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