APEX: LOVs and it is the Null attribute return

Similar Questions

• APEX 4.2.3 consume the web service returning a PDF problem

  Using APEX 4.2.3 on a database of Oracle 11 g R2, Firefox 31.7, we ask a service web restful one before the process of page header, to download a PDF Code file used:

  declare

  CLOB l_clob;

  l_blob blob.

  l_sql_delimiter varchar2 (30);

  l_lang_context integer: = DBMS_LOB. DEFAULT_LANG_CTX;

  l_warning integer: = DBMS_LOB. WARN_INCONVERTIBLE_CHAR;

  l_dest_offset integer: = 1;

  l_source_offset integer: = 1;

  l_Json VARCHAR2 (4000);

  Start

  l_clob: = null;

  DBMS_LOB.CREATETEMPORARY (l_blob, true);

  -Generate here the content of your file in l_clob.

  hr_Pkg.Security_Termination_Form(:P4200_PERSON_HR_ID,l_Json);

  hr_Pkg.call_rest_webservice (l_Json, 'TestME.Pdf', l_Clob);

  Logger.log ('CLOB SIZE IN PAGE: ' | sys.) DBMS_LOB. GetLength (l_clob));

  sys. HTP.init;

  sys.owa_util.mime_header (' application/pdf', FALSE, 'UTF-8');

  sys. HTP.p ("Content-length: ' |") sys.DBMS_LOB.GetLength (l_clob));

  sys. HTP.p ('Content-Disposition: attachment; filename = "TestME.Pdf" ');

  sys.owa_util.http_header_close;

  () DBMS_LOB.converttoblob

  dest_lob = > l_blob,

  src_clob = > l_clob,

  amount = > DBMS_LOB. LOBMAXSIZE,

  dest_offset = > l_dest_offset,

  offset = > l_source_offset,

  blob_csid = > DBMS_LOB. DEFAULT_CSID,

  lang_context = > l_lang_context,

  WARNING = > l_warning

  );

  Logger.log ("SIZE of BLOB: ' |") sys. DBMS_LOB. GetLength (l_blob));

  sys.wpg_docload.download_file (l_blob);

  apex_application.stop_apex_engine;

  exception when others then

  sys. HTP. PRN (' error: ' |) SQLERRM);

  apex_application.stop_apex_engine;

  end;

  We run in the question, that the PDF file is empty with the exception of a few fill-able fields that must be completed in advance by the call to the web service.

  When you run the web service directly from the browser, the PDF that is generated is very well and seems to be complete. And the size of the file that is created as the clob from the web service call is exactly the same size it as the pdf file received directly from the web service.

  When we compare the size of the clob to the size of the blob, we see that the blob is slightly larger in size than the clob.

  Any suggestions? (Sample code for posting to the hosted site for Oracle will not work because you can not call the hosted instance web services and web service is hosted BEHIND our firewall).

  Thank you

  Tony Miller
  Software LuvMuffin
  Ruckersville, WILL

  Problem is resolved... As opposed to the use of the APEX apex_web_service.make_rest_request must use the utl_http.begin_request and then treats the query returned through utl_http. READ_RAW and who then saving it in a temporary BLOB.

  Maybe when we update to the APEX 5, I'll see if I can deal with it using standard APEX packages...

  Thank you

  Tony Miller
  Software LuvMuffin
  Salt Lake City, UT

• Create the view and by using the function that returns a type oracle

  Following is possible?
  
  A function returns an ORACLE object Type, and I want to use this feature, in my opinion, it is possible to access each field of the type once the function is executed and make a column in the view?
  

  create or replace TYPE SOME_INFO AS OBJECT
  ( 
    CHARGE FLOAT,
    SOME_DATE DATE,
    SOME_VAL VARCHAR(50)
  );
  
  CREATE OR REPLACE
    FUNCTION CALCULATE_INFO
      (
        p_chargeId NUMBER)
      RETURN SOME_INFO 
    AS 
    v_some_info SOME_INFO := new SOME_INFO(0, null, null);
  BEGIN
   
  -- function body populates the v_some_info
  return v_some_info;
   
  END calculate_info;

  Now, I want to use the function according to me - if the underlying query of the view follows-
  

   select c.*, calculate_info(c.charge_id) as someInfo from some_charge;

  How to recover someInfo.CHARGE, someInfo.some_date, someInfo.some_val? I can put them as columns in the view?
  
  If you use only functions that return a single value in a view?
  
  Thank you
  Mustapha
  
  Published by: Tina Giri on April 16, 2009 05:47

  How to recover someInfo.CHARGE, someInfo.some_date, someInfo.some_val?

  SQL>  create or replace type some_info
  as
     object (charge float, some_date date, some_val varchar (50));
  /
  Type created.
  
  SQL>  create or replace function calculate_info (p_chargeid number)
     return some_info
  as
     v_some_info   some_info := new some_info (0, null, null);
  begin
     -- function body populates the v_some_info
     return v_some_info;
  end calculate_info;
  /
  Function created.
  
  SQL>  select your_view.someinfo.charge,
         your_view.someinfo.some_date,
         your_view.someinfo.some_val
    from (select c.*, calculate_info (c.empno) as someinfo
            from emp c) your_view where rownum <= 3
  
  SOMEINFO.CHARGE SOMEINFO SOMEINFO.SOME_VAL
  --------------- -------- --------------------------------------------------
                0
                0
                0                                                            
  
  3 rows selected.
  

• SQL problem in apex LOV

  I am not able to use this SQL statement to apex LOV, ideas?
  
  Select the username, id
  some abusers
  order to decode (id, 0, NULL, username) FIRST values NULL.
  
  I get the following error message:
  1 error has occurred
  
  * LOV query is not valid, a display and a return value is needed, the column names must be different. If your query contains a query online, the first CLAUSE in the SQL statement must not belong to the query online.
  
  
  Re: How to concatenate two sql statements?

  Hello

  Remove the semicolon at the end.

  See you soon

  Ben
  http://www.munkyben.WordPress.com
  Don't forget to mark the answers useful or correct ;)

• Question related to the JSTL attributes

  Hello
  
  I am new to JSP and JSTL and needed to define the var attribute < C:SET / > tag to some time of execution attribute value but var does not support the rtexpr. Is there a reason why var and scope of the JSTL attribute do not appear to accept the value of rtexpr? Also if anyonce can suggest the solution so it would be great.
  
  Thank you
  Niraj Rouault

  Hi Andrew,

  I believe that by means of "rtexpr" expression of the run time. From my understanding of your question, you have a variable in JSP to assign a value to an expression that must be evaluated at run time. In this case, EL can be used. Please see the link below:

  http://docs.Oracle.com/javaee/5/tutorial/doc/bnahq.html

  Also note that you phrase your question thoroughly rather than use the abbreviated expression. This would help to get a quick and accurate response.

  Kind regards
  Amit

• How to change the default message for the required attribute of the entity?

  Hello
  
  I use JDeveloper 11 g 11.1.1.5
  
  Is it possible to modify a commit message by default on the attribute of the required entity? I don't want to show the user something more useful than VO and the name attribute.
  
  
  Anatolii

  Hello
  You can open the respective OS.
  Open the business rules and then select the required attribute and click the Edit option and write your custom message
  on the Management window of failure on the error message section.

  Thank you
  Sumit Yadav

• Why my front panel opens with a white background and most of the invisible control

  When I open my vi and several others, they open with a white background and most of the controls not returned as theis

  

  After I resize it looks like it should

  

  It's probably somewhat similar to these problems of crazy object.

  Sometimes copy/paste works because it takes your code on a VI that could have a corruption and put in a cool VI.  In your case, the corruption could be linked to the control itself and he just copied over in the new VI.  Money controls are a relatively recent creation which added some fancy appearances.  They don't seem to be the style that is most likely to have some behind the bugs of scenes from the styles of controls that were longer.

  If you have a shared services provider, or if a person nor jump here and wants to study, they want to can see your VI and understand what goes wrong.  If this isn't the case, I hope that what you've done has solved the problem and you can spend without return.

• Apex 4 Cascading LOV s how to define a child LOV back to the null return value

  Hello
  
  My problem is that I use the new dynamic action to implement features of LOV cascading to the Apex 4 which means not having to submit the page to update child LOVs after parent LOV changes.
  
  What I find, is that when you change the value LOV parent, then the child LOV (which has a return value of zero) is not or by default in the return value zero (in my case no selection should return-1) if the list is filtered to a different set of values, which is not a selection valid. The LOV child is left without a choice when I need its default value to the return value zero (-1, which represents all values).
  
  Also, I expected to do before the page is sent and filtering to the bottom of the hierarchy of LOVs can work when the child is zero (-1, which means that all values) and in turn her child LOV (s) will also the child null filter.
  
  Any help would be appreciated.
  
  Thank you

  Hi 804641,

  I don't know if I get your problem and I tried to reproduce.

  http://Apex.Oracle.com/pls/Apex/f?p=2672:6 is my example with a LOV cascading where I also defined a dynamic action that is triggered when P6_EMPNO changes and it shows the current selection.

  Maybe it helps if install you an example on apex.oracle.com and provide space to work/user/pwd, so that I can have a look. I'm not sure about your sentence "help for a new dynamic to implement cascading LOV feature", because dynamic actions are not necessary for LOVs cascading. It is a characteristic of the types of items themselves where you just set the attribute "Cascading LOV Parent éléments".

  Concerning
  Patrick
  -----------
  My Blog: http://www.inside-oracle-apex.com
  APEX 4.0 Plug-Ins: http://apex.oracle.com/plugins
  Twitter: http://www.twitter.com/patrickwolf

• Different LOVs of af: query and af:form for the same attribute of VO

  Hello
  
  We need show different LOVs af:query and af:form for the same attribute in VO.
  
  Is it possible to use LOV Switcher for this?
  
  Can how we use in the LOV Switcher attribute to check if she is seen Critearia line or VO?

  Please see this post - http://jobinesh.blogspot.com/2011/04/identifying-request-for-lov-from-search.html

• Styling Null value in the column attributes

  I tend to the attributes of user input placeholder to display things like "Enter blah blah blah". Then I use the attributes of color CSS placeholder the placeholder with a value lighter than the normal entrance to style text. If the placeholder is paler than normal text entry.

  I would like to DISPLAY NULL VALUE text style that I provide to select LOV is in the same color. For a line given in table format placeholders and select LOV NULL DISPLAY VALUES are consistent.

  Someone knows how to do?

  For example, if I had a list of report selection. And I used a NULL DISPLAY VALUE of 'State of entry', I might have a # 444 color when "Enter State" is displayed and a #bbb color when you see "Georgia."

  I tried including the HTML to the NULL VALUE. Put something like a DISPLAY NULL VALUE < span class = "plus-couleur" > </span > state entry. That did not work.

  Thank you.

  90% solved using this approach strategies for select menu drop-down lists placeholder. Theory of the code

• Value null sent Siebel to OPA and back of the OPA of Siebel

  Hello world
  
  Is it possible to have a field with a null value mapped in the Siebel takeover and have value for this field OPA or return the value zero of origin?
  
  In our project, we have some fields in Siebel that will be mapped to the OPA. This field can have a null value when OPA is called. My intention is to map this field with OPA - and given a set of circumstances, the value of this attribute with a value OR returns the original value of Siebel (which may be zero).
  
  For example:
  In Siebel under the ignition, there is a text field: mood of the person
  The field is not required, so he has an LOV from: happy, sad, or null.
  
  It is an example of rule table.
  http://i.imgur.com/YqdGi.jpg
  
  For mapping, I plan to have-
  [Siebel: mood of the person]-> [OPA: entry in the mood of the person]
  and
  [OPA: output in the mood of the person]-> [Siebel: mood of the person]
  
  
  Thanks for your help!
  Isamu Minami
  
  Published by: Isamu August 8, 2011 15:18

  You can deduct rules based on the unknown function [currently]. Siebel connector will not pass nulls for modules so they will be unknown at the session. You can then set the mood of output OPA based on the question of whether or not the attribute is unknown.

  Hope this helps

• How to return a NULL value in LOV and insert into a field of allowingNULL number 4?

  Hello
  
  I have the following LOV and the return_value is PeopleId which is number 4, allowing NULL. And the LOV options are as follows:
  
  LOV named--> select named LOV-
  Show Extra values-> no
  Dynamic translation-> - untranslated-
  The number of columns - > 1
  Display Null-> Yes
  Null-> - Select value-
  Return NULL,-> NULL value
  ^^^^^^^^^^^^^^^
  
  ----------------
  
  List of values definition:
  Select Lname | ', ' || Fname | ' ' || Mname as display_value, PeopleId as return_value
  of PEOPLETB
  where PEOPLETYPE ('i', 'HERE', 'IF')
  order by 1
  --------------
  
  Given that PoepleId is a number 4, allowing NULL. I want a NULL value will be inserted, if the user does not select anything in the drop-down list. It seems that I would get "ORA-01722: invalid number" error when the PeopleId msg is null (ie: user doesn't have a selection). What is the good 'return Null value' I need to put it in? I tried "NULL" (see above) or nothing, it still does not work.
  
  Any suggestions?
  
  Thank you very much
  Helen

  Hello Helen,.

  You have found one of the many sources of my frustration with APEX. Here's what I do:

  In the definition of the element in your page, go to the LOV part and implemented like this:

  Display Extra values: Yes a dynamic conversion (I ignore this)
  Number of columns: 1 display Null: No.
  Display null value: (leave blank) return Null value: (leave blank)

  An empty row is displayed when the user comes first to the screen. If they do NOT select the drop-down list, the value is left empty (null).

  If anyone has a better way, I will definitely experiment with it.

  Don.

• Links and bookmarks to the Apex 5 deep

  Dear community of Apex,

  We are currently a problem or misunderstanding with the use of deep links regarding the user favorites.  The documentation suggests that the deactivation of deep links in the security attributes would stop a user navigates to a bookmark in the middle of a wizard page.

  However, a simple test that goes as follows:

  1. While in the page request to bookmark on second stop of the train

  2. close the session

  3 try to cross the bookmark which then takes you to the login page

  4. connect

  -Expected: user will be re-directed to the homepage

  -Currently: moves to the second train stop

  Note: deep links is not overridden in any of our pages, session state protection is on and access page protection has the value "Arguments must have Checksum.  Invalidate the bookmark links works a treat on this bookmark, that I just created.

  Does anyone have an experience that can shed some light on the question of whether we are doing something wrong, or our expectations are imperfect.

  * Version: Application Express 5.0.1.00.06

  * Tested on Chrome and IE v11 v45
  

  
  

  Thank you

  Barry

  Make sure that you are logged into the application builder too. First I had the same question, but what ITU registered with the manufacturer, that it works as expected.

• disable the Popup LOV and its icon in a tabular form

  Hello

  My requirement is

  I want to disable Popup LOV and tabular icon.

  If I select the first value in column selection list 'A' then second column Empname disable window popup lov

  and if I select 'B' and then select empname popup lov.

  Kind regards

  Arianne.

  Hi ujwala1234,

  ujwala1234 wrote:

  I want to disable Popup LOV and tabular icon.

  If I select the first value in column selection list 'A' then second column Empname disable window popup lov

  and if I select 'B' and then select empname popup lov.

  You can do it by using dynamic action.

  Use the javascript code in the next thread to turn lov popup tabular icon.

  Reference: How to disable the popup LOV (query based LOV) in the form

  and related to put on over ReadOnly rank tabular thread

  NOTE: instead of setting custom "row_item_disabled" CSS class use the integrated class APEX "apex_disabled."

  If it is still impossible to solve, re - produce the question on apex.oracle.com and share the credentials from the workspace.

  Kind regards

  Kiran

• How to add the transient attribute for LOV (object of the view read-only)

  I have a view called CustomerView and attribute DepartmentId is present in it.

  Also exists DepartmentView and CustomerView.DepartmentId has an LOV from this point of view.

  I need to add a transient attribute to CustomerView which express the DepartmentName attribute in the LOV.

  Because of the view are read-only there is no entity object don't match them.

  How can I write the groovy for the transitional object expression.

  The name of the view accessor Lov's DepartmentView1

  Looking for your help. Thank you.

  Hi gcoban

  I do not understand your question correctly,

  you are not able to write to the expression property in viewObject?

  or you want to know how to write groovy for that?

  for writing groovy you need viewAccessor and you who have, you can try as Alejandro Tovar Lanz suggested

  or you can write code in RowImpl to fill in the name of the Ministry of the accessor

  See -https://blogs.oracle.com/adf/entry/combo_lov_how_to_display

  Thank you