Download blob function instead of table field

Similar Questions

• Adding a sequence as a default value for a column in a table field

  Hi all

  APEX 4.2.4. Oracle XE 11.2

  I'm trying to add a default value from a sequence to a column in a table field, so he fills when I hit the "Add Row" button...

  The reason for this by the way, rather than simply using a sequence database and the trigger on the column (which exists and works very well), is that I try also add detail records to the line when I create, and I can not, I do not have the ID of the parent to the child records.

  Looking at the docs, (for example oracle 11 g pl/sql enhancements), I thought I'd have be able to use a PL/SQL expression as to_char (petty_cash_seq. NEXTVAL) or to_number (petty_cash_seq. NEXTVAL) or all that kind of expression that extracts the sequence.nextval, as it became available in PL/SQL on the database

  so, Ive tried

  TO_CHAR (petty_cash_seq. NEXTVAL) in tabular form attributes - column default / PL/SQL expression and he said ORA-02287: unauthorized number sequence here...

  Ive also tried rolling upward in a PL/SQL package, as below:

  DECLARE v_seq_value NUMBER; BEGIN select petty_cash_seq. NEXTVAL in the double v_seq_value; return v_seq_value; END;

  and I get ORA-00923: KEYWORD not found where expected.

  Can anyone help as to why neither of them do not seem to work as an expression / packages in the default type?

  or... a simple alternative to get the ID of the next record when I hit 'Add Row' before I can create child folders at the same time...

  And I've been mulling over the merits of the master / detail integrity and try to think in an orderly manner to create the mask, add the details without having to first submit the master, then go back and go into details... And put it into context, its a request for costs where users create an expense entry and download copies of their expenses at the same time...

  Thank you very much

  Richard

  Use a combination of AJAX and JavaScript to get the next value in the sequence in a version substituted the line Add.

  1. on the page editor, right-click on the Ajax callbacks and select Create.

  2. on the next page, select PL/SQL. Do * not * select the tabular presentation. Leave this field blank.

  3. name your process, e.g. getNextSequence

  4. Add the code (under the DIRECTION of your own names of the object):

  DECLARE
      ln_NextSequence NUMBER := 0;
  BEGIN
      SELECT MY_SEQUENCE.NEXTVAL
      INTO ln_NextSequence
      FROM DUAL;
  
      HTP.P(TO_CHAR(ln_NextSequence));
  END;
  

  5. When you look now, you will see that the button Add a line called javascript:addRow (). Remove all this and change the button to be triggered by a dynamic action.

  6. create a dynamic action when a click on your button to add a line

  7. Add the following JavaScript code to get the new value of the sequence using your AJAX call from above and then place it on the newly added line:

  var nextSequenceID;
  
  apex.server.process(   'getNextSequence'
                       , {}
                       , { dataType: "text",
                           async: false,
                           complete: function( ajaxResponse )
                                    {
                                      nextSequenceID = ajaxResponse.responseText;
                                    }
                         });
  
  addRow();
  
  $('td [headers="YOUR_ID_COLUMN_NAME_HERE"] input:last').val(nextSequenceID);
  

  -Joe

• Download BLOB in a new window

  I have an Apex 5 interactive report on a table with a blob column. I have the updated column to download BLOB and Inline content available. It works fine, but I would like that the file blob to open in a new browser window. I see no way to do it. Is there a way?

  Thank you!

  RoboMan says:

  I have an Apex 5 interactive report on a table with a blob column. I have the updated column to download BLOB and Inline content available. It works fine, but I would like that the file blob to open in a new browser window. I see no way to do it. Is there a way?

  1. in the definition of BLOB column, adds a static ID as the "blob-download" for use as a jQuery selector.

  2. create a dynamic action after Refresh on the IR region, which inserts an attribute target on the download link:

  Event: After refresh

  Selection type: Region

  Region:

  Real Actions

  Action: Run the JavaScript Code

  Fire on Page load: Yes

  Code

  $('td[headers="blob-download"] a').attr('target', '_new')
  

• Download BLOB via wpg_docload does not

  Hello
  I installed a new oracle database server and recently installed the 4.1 Apex then transferred my legacy data and applications from the old server.
  My new configurations are

  Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
  PL/SQL Release 11.2.0.1.0 - Production
  CORE     11.2.0.1.0     Production
  TNS for 32-bit Windows: Version 11.2.0.1.0 - Production
  NLSRTL Version 11.2.0.1.0 - Production

  My oracle Enterprise Manager displays

  Hosts               1          Application Servers     1
  OC4J Instances          1          HTTP Server Instances          1

  Previously I had Apex 4.0.1 on Apex listener through the Glassfish server and all my applications worked perfectly. But on the new installation of the page that downloads report, via the rtf code generation and it downloaded from the BLOB does not work.
  
  

  Declare
        l_mime        varchar2 (255);
        l_length      number;
        l_file_name   varchar2 (2000);
        l_lob_loc     blob;
        l_rtf         clob;
        l_name        varchar2(100);
        -- conversion variables
        l_src_offset  number := 1;
        l_dest_offset number := 1;
        l_lang_ctx    number := 0;
        l_warning     varchar2(32767);
     begin
        -- get name
        select 'testrtf'
        into   l_name
        from   dual;
        -- generate document
           select :P16_RTF  into   l_rtf  from   dual; 
        --:P16_RTF contains rtf code.
        -- convert to lob
        dbms_lob.createtemporary(l_lob_loc, false);
        dbms_lob.converttoblob(l_lob_loc, l_rtf, DBMS_LOB.GETLENGTH(l_rtf), l_dest_offset, l_src_offset, 0, l_lang_ctx, l_warning);
        l_length  := dbms_lob.getlength(l_lob_loc);
        -- http header
        owa_util.mime_header('application/rtf', false);
        htp.p('Content-length: ' || l_length);
        htp.p('Content-Disposition: attachment; filename="'||l_name||'.rtf"');
        owa_util.http_header_close;
        -- download blob
        wpg_docload.download_file (l_lob_loc);
     end;

  I searched and didn't find any help, but it seems that there is a problem of configuration of DAD. My DAD file looks like
  

  <Location /pls/apex>
   Order deny,allow
   PlsqlDocumentPath docs
   AllowOverride None
   PlsqlDocumentProcedure         wwv_flow_file_mgr.process_download
   PlsqlDatabaseConnectString     db:1521:orcl ServiceNameFormat
   PlsqlNLSLanguage               AMERICAN_AMERICA.AL32UTF8
   PlsqlAuthenticationMode        Basic
   SetHandler                     pls_handler
   PlsqlDocumentTablename         wwv_flow_file_objects$
   PlsqlDatabaseUsername          APEX_PUBLIC_USER
   PlsqlDefaultPage               apex
   PlsqlDatabasePassword          ******
   PlsqlRequestValidationFunction wwv_flow_epg_include_modules.authorize
   Allow from all
  </Location>

  and I could not find wwv_flow_file_objects$ either. All of the suggestions.
  
  Concerning
  Sabir
  
  Published by: sabir786 on December 29, 2011 11:37

  Hi sabir786,

  I had exactly the same problem. I went to my request of APEX 4.0 and Oracle 10 g to 4.1 APEX and Oracle 11 g, then all download functions via wpg_docload stopped calling the download dialog box.

  Now, I tried some kind of workaround to find the feature.
  Rather than use page-processes to call the download functions, I tried to use enforcement procedures (called on request) and it works fine.

  that is to say:
  an application process named 'export' called at the request

  Start
  (#OWNER) # .f_export
  v_EXPTYP =>: P10_EXPORT_TYPE,
  v_ID =>: F_PROJEKT_ID
  );
  end;

  a button that calls a branch with the following query

  APPLICATION_PROCESS = export

  f_export is the function that generates the rtf file and in the end, it has the wpg_docload functions to download the file.

  Hope it helps you as well.
  Concerning

• Two BLOBs in a single table

  So, I have a table:
  
  BLOB_TABLE
  Number of BLOB_ID automatically triggered (sequence primary key)
  BULLETIN BLOB
  BULL_FILE VARCHAR (255)
  BULL_MIME VARCHAR (255)
  DATE OF BULL_LAST_UPDATE
  SUPERFORM BLOB
  SUPER_FILE VARCHAR (255)
  SUPER_MIME VARCHAR (255)
  DATE OF SUPER_LAST_UPDATE
  
  When I try to view a BLOB, it will show only the last BLOB responsible for this record.
  
  Can I store two types of BLOB data in a table? It doesn't seem to matter how I even try to show (even using the 'Download' link attached to traverse file).
  
  Or I have to create two tables and link them together (I'd rather not do that if I have to).
  
  Please notify.

  Hello

  Maybe I just misunderstood your question, but on

  Apex. Oracle.com

  workspace: put
  user: guest
  Pass: apex1234

  request blobtest - pass to page 2!

  I just download 2 different blobs at once...

  ---

  Take a look at the defs of the ID column (which I have 2 times) - here in the format you add WHICH column to download: DOWNLOAD: BLOBTEST:BULLETIN:ID (for the first id)

  concerning
  Mette

  Published by: Mettemusenss on 2010-02-19 10:14

• Download 64-bit instead of 32-bit elements of adobe first 13

  Download 64-bit instead of 32-bit elements of adobe first 13

  Available downloadable Setup files:

  • Suites and programs: CC 2015 | CC 2014 | CC | CS6 | CS5.5 | CS5 | CS4, CS4 Web Standard | CS3
  • Acrobat: DC, XI, X | 9,8 | 9 standard
  • First Elements: 13 | 12 | 11, 10 | 9, 8, 7 win | 8 mac | 7 mac
  • Photoshop Elements: 13 | 12 | 11, 10 | 9,8,7 win | 8 mac | 7 mac
  • Lightroom: 6| 5.7.1| 5 | 4 | 3
  • Captivate: 8 | 7 | 6 | 5.5, 5 | 1
  • Contribute: CS5 | CS4, CS3 | 3,2
  • FrameMaker: 12, 11, 10, 9, 8, 7.2

  Download and installation help links Adobe

  Help download and installation to Prodesigntools links can be found on the most linked pages.  They are essential; especially steps 1, 2 and 3.  If you click on a link that does not have these listed steps, open a second window by using the link to Lightroom 3 to see these "important Instructions".

• I have Photoshop CS6 extended CD, but my computer will not read.  Is it possible to get a digital download to use instead?

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• How to upload an image or a file in flash as a blob in an object table.

  How to upload an image or a file in flash as a blob in an object table.
  
  What are all the possible ways, we can do it.

  A search on the forum (or google) would be my first choice, as this issue appears from time to time.

  Then, without the knowledge of your environment (jdev version and battery technology), it is difficult to give a profound response.
  All I can say is that it is possible.

  Timo

• Problems with mappings when changing the type of source table field?

  Hello world
  
  one question.
  Is it a problem when I change my types of fields in my table of source of char for example varchar2 with mapping that uses this table?
  In the mapping of the source table field Types are defined as Char fields. Do I have to change all the fields of char to varchar2 (via Import again from the source table and synchronize in the map)?
  
  Thanks in advance.
  
  Greetings

  Hello

  If your new data type (in the database is compatible and big enough) then you probably don't have to change the class in your other mapping wise you need.

  It a good practice to import the last definition of table (metadata) in the repository of OWB and then synchronize incoming.

  Thank you
  Fati

• combination of table fields

  Hello

  I am mysql, PHP and DW

  I have a table called "persons" in three columns, id, first_name and last_name.

  I need to run a sql sentence where to get the id field as it is and the 2 other fields combined together as fullname.

  I tried this as a recordset in DW5, but I received an error message:

  Select people.id, people.first_name & "" & people.last_name as the display name

  people,

  Thanks for help

  Joe

  SELECT id, CONCAT(first_name, ' ', last_name) As fullname FROM people
  

  The correct term is CONCATENATE, not combine. This is probably why you found nothing through research.

  http://www.Google.com/search?q=concatenate+SQL+table+fields

• Views instead of tables

  Hello
  
  
  manuals strongly cautioned against the use of complex views in the repository instead of tables - is there a good reason for that - I know it will be higher when you ETL at the tables, but in terms of areas that do not warrant this type of development is all best practices with links between complex views - as I am too often short in errors in the repository when I try.
  
  
  Thank you
  
  Robert.

  If you want to use the views (when there is no other way) then the best practice is to use materialized views. It behaves as a concrete table and will not refresh as views are whenever you call display.

• Download content clob of function instead of a blob column in a table

  I found a few examples of how to create a download link data stored in a blob column. However my data are not stored in a blob column, but are created in a function that returns a clob. Of course, this feature can be used to fill a blob column, which can then be downloaded but there may be a more direct route.

  Hello René,.

  I adapted one of my snippets for the download links for your case. The procedure is much the same as that concerning an existing blob. In order to offer the download, you must convert your clob in a blob, which can be done easily by using the corresponding function provided by the [http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_lob.htm url] DBMS_LOB-API.
  The result might look like the following (untested) code snippet:

  CREATE OR REPLACE procedure download_from_function (p_func_argument IN VARCHAR2, p_filename IN VARCHAR2)
  AS
    l_http_response  UTL_HTTP.resp;
    l_blob           BLOB;
    l_raw            RAW(32767);
    l_length         INTEGER;
    l_dest_offset    INTEGER := 1;
    l_src_offset     INTEGER := 1;
    l_lang_context   INTGER := DBMS_LOB.DEFAULT_LANG_CTX;
    l_warning        INTEGER;
  BEGIN
    -- Initialize the BLOB.
    DBMS_LOB.createtemporary(l_blob, FALSE);
    -- replace the function call for src_clob
    DBMS_LOB.convertToBlob( dest_lob     => l_blob,
                            src_clob     => your_clob_function(p_func_argument),
                            amount       => DBMS_LOB.LOBMAXSIZE,
                            dest_offset  => l_dest_offset,
                            src_offset   => l_src_offset,
                            blob_csid    => DBMS_LOB.DEFAULT_CSID,
                            lang_context => l_lang_context,
                            warning      => l_warning);
    l_length := DBMS_LOB.getlength(l_blob);
  
    -- create response header
    OWA_UTIL.mime_header('text/plain', false);
    -- add furhter header attributes
    htp.p('Content-length: ' || l_length);
    htp.p('Content-Disposition: attachment; filename="' || p_filename || '"');
    -- close the headers
    OWA_UTIL.http_header_close;
    -- download the BLOB
    WPG_DOCLOAD.download_file( l_blob );
    -- release BLOB from memory
    DBMS_LOB.freetemporary(l_blob);
  
  EXCEPTION
    WHEN OTHERS THEN
      DBMS_LOB.freetemporary(l_blob);
      RAISE;
  END download_from_function;
  /
  -- Page process before header on blank page
  BEGIN
    download_from_function (p_func_argument => 'your_argument_for_your_clob_returning_function',
                            p_filename => 'filename_for_download.txt');
  END;
  

  You must change the function name and arguments to fit your clob function signature. You can also add a characterset conversion if necessary. See the [url http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_lob.htm] API - doc for more details.

  -Udo

• ORDSYS.ordimage resizes all blob of a table fields

  I have a table with two blob fields that store the image jpg files.

  -Original blob field: img_simbolo_op

  -With resized image blob field: img_simbolo_thumb

  This script allows me to resize img_simbolo_op blob field and store the image resized in img_simbolo_thumb area.

  However, after the script is run, the two fields blob has been resized. Why?

  CREATE OR REPLACE PROCEDURE ORGPOLV2.sp_resize_img(i_cod_op IN INTEGER)
  IS
     b     BLOB;
     b1   blob;
     obj   ORDSYS.ORDImage;
    
  BEGIN
    
     SELECT img_simbolo_op
           INTO b
           FROM tbl_op
          WHERE cod_op = i_cod_op 
          FOR UPDATE;   
  
     obj :=
        ordsys.ordimage (ordsys.ordsource (b,
                                           NULL,
                                           NULL,
                                           NULL,
                                           SYSDATE,
                                           1),
                         NULL,
                         NULL,
                         NULL,
                         NULL,
                         NULL,
                         NULL,
                         NULL);
     
     obj.setProperties ();
     
     obj.process ('maxScale=32 32');
     
     b1 := obj.getContent ();
  
     UPDATE tbl_op
        SET img_simbolo_thumb = b1
      WHERE cod_op = i_cod_op;
     
     COMMIT;
  
  END sp_resize_img;
  

  ORDImage.process () is the treatment the current LOB... which is a pointer to the LOB in IMG_SIMBOLO_OP.

  IE - you update the LOB without an UPDATE command.

  It's strange.  I know.

  You want to use instead ProcessCopy()... or another method that does the same thing.

  The method has been discussed in various forums (e.g. APEX).

  If you use ProcessCopy() make sure you give him an initialized LOB (for example dbms_lob.create_temporary ())

  MK

• Download the content of the BLOB from a custom table

  In our application hosted the apex, the following code from the Express on the Application Developer's Guide works great to allow a user to download the contents of the blob of one of our paintings customized via a download button. However, the code does not work on the Cloud Oracle because the 'owa_util' package is no longer available. The code is as follows:
  
  CREATE OR REPLACE PROCEDURE download_my_file (p_file in number) AS
  v_mime VARCHAR2 (48);
  V_LENGTH NUMBER;
  v_file_name VARCHAR2 (2000);
  Lob_loc BLOB;
  BEGIN
  Name of SELECT MIME_TYPE, BLOB_CONTENT, DBMS_LOB. GETLENGTH (blob_content)
  IN lob_loc, v_file_name, v_mime, v_length
  OF file_subjects
  WHERE id = p_file;
  --
  -set up the HTTP header
  --
  -Use a NVL around the mime type and
  -If it is null it the value application/octect
  -application/octect can initiate a download of windows window
  owa_util.mime_header (nvl(v_mime,'application/octet'), FALSE);
  
  -set the size so that the browser knows how to download
  HTP.p ("Content-length: ' |") v_length);
  -the name of the file will be used by the browser if users only one save as
  HTP.p ('Content-Disposition: attachment; filename = "" | ") Replace (Replace (substr (v_file_name, InStr(v_file_name,'/') + 1), Chr (10), null), Chr (13), null). '"');
  -close the headers
  owa_util.http_header_close;
  -Download the BLOB
  wpg_docload.download_file (Lob_loc);
  end download_my_file;
  /
  
  In addition to the use of web services, does anyone know how to do this? Is it possible to add access to the package 'owa_util' in the cloud? I also tried apex_util.get_blob_file_src but that is also not available in the Oracle cloud.
  
  Thank you
  
  Steve

  Hi Steve,.

  (1) sys.owa_util is certainly available. You should be able to issue this block very well SQL commands:

  Start
  owa_util.print_cgi_env;
  end;

  ((2) I think the problem is that you have created a procedure that a) cannot not be granted run to the PUBLIC and b) cannot be called directly from the URL (because of a properly locked APEX listener which restricts entry points, i.e..) What procedures can be called directly from the URL).

  Even if there was no prohibition of granting something to the PUBLIC, you would never get by the restriction on the call of your own point of entry of the URL. Also in a facility non - Cloud APEX (and even when you're using mod_plsql), the list of entry points is applied through the PlsqlRequestValidationFunction (http://docs.oracle.com/cd/E23943_01/web.1111/e10144/under_mods.htm#HSADM698).

  Two ways around this:

  (1) you can define a request of the process which, when called, downloads the requested file

  or

  (2) you may want to expose this functionality via a RESTful Service of media resources, even though right now, I'm not necessarily details how you would ensure access to it.

  I hope this helps.

  Joel

• DELETE or empty field containing the BLOB in the roacle table

  Hi all.
  
  I have a table in the schema with a BLOB field. I store the photo of the employee in this area. Fields of this table are emp_name emp_id (number) (varchar2) and emp_photo (BLOB). I would like to ask if there is a way in pl / sql I could empty this field to null BLOB or reset this field so that the user can modify the saved photo graph and record another.
  
  I'm looking for is something like
  

        alter table employee set emp_photo = empty_blob() or alter table employee set emp_photo = null
  
    

  Thanks in advance.

  >
  I'm looking for
  >
  Looking in the documentation for Oracle? For example, in the EMPTY_BLOB, EMPTY_CLOB of the SQL language reference section?
  http://docs.Oracle.com/CD/B28359_01/server.111/b28286/functions049.htm
  >
  Goal
  EMPTY_BLOB and EMPTY_CLOB return an empty LOB Locator that can be used to initialize an LOB variable or in an INSERT or UPDATE statement to initialize a LOB column or attribute EMPTY. EMPTY means that the LOB is initialized, but not filled with data.
  . . .
  Examples

  The following example initializes the ad_photo of the sample pm.print_media EMPTY table column:
  UPDATE print_media SET ad_photo = EMPTY_BLOB();