Application Express :: How To Use D3.js Library With Charting
Nov 1, 2012
I am using Apex 4.1.0 with Oracle 11gR2 and Oracle App Server (mod_plsql). I'm trying to incorporate the d3.js library (a visualization framework) in my Apex charts but am not having much success.
I found this article in which David Mann uses the library within an Apex 4.x application:
[URL].....
I replicated his exact steps in my own application but without success. I do not see how he was able to get his application to work. Indeed, the tutorial does not even use a dynamic action despite what the article title says.
Has any one used the d3.js library with their Apex application. If so, would you be willing to share how you went about it?
How to use the DLL? My DLL is loaded on the client host in the C: Documents and Settings USER webutil. When you try turning to the library, I get an error:
WUL-928 [CApiFunctions.set_invokeoncespec ()] EXAMPLE.DLL library is not available or does not contain a function MYFUNCTION
At a customers site I see lot of long lasting library cache locks during a complex ETL run. Several Sessions run in parallel and create Database tables with dynamic sql ( CREATE TABLE AS SELECT ....) .
Sometimes these procedures wait for each other with wait event 'Library Cache' . I presume that this is a side effect of the dynamic DDL in the stored procedures. Is that possible even when the Procs create different Tables but reference the same tables in their SELECT clauses ?
I presume that this is plausible but I need some arguments to convince my colleagues.
FRM-10102: Cannot attach PL/SQL library XXX. This library attachment will be lost if the module is saved.I am getting above error message while opening Oracle 6i Form in 10g.
I get the following Alert message when I try to attach the library to my form - Attached library name S:.........xxx.pll contains non-portable directory specification. Remove path? Yes/No?
If I select 'No', the Form compiles and runs without any error.But if I select 'Yes', I get the following error message: FRM-40039: Cannot attach library xxx while opening form.
All files (fmb, fmx, pll, plx) are on the same path. I detached and then re-attached the library but this didn't work for me?
I working in windows environment and using form 6i. Everyone have used the same form and they are getting properly. But when i run the same form i am getting the following error.
PDE-DFF003: Can't Open Library : D2KWUT32.DLL
I am getting the above error when i execute the following line on when - button - pressed
We have integrated Oracle Access Manager 11gR1 with Oracle Apex 4.1. The OAM-Apex integration is working fine. Now we want an additional header variable to be passed from OAM to the Apex application. This new header variable will be user's sAMAccountName in Active Directory. OAM is integrated with AD and the AD users are successfully able to access the Apex applications.
The three header variables which are configure in OAM right now are: Header variable name Value 1. OAM_REMOTE_USER $user.userid 2. OAM_REMOTE_USER_EMAIL $user.attr.mail 3. OAM_REMOTE_USER_GROUPS $user.groups
We need an additional header variable as mentioned below: Header variable name: OAM_SAMACCOUNTNAME Value: $user.attr.samaccountname
The new header variable was added in the OHS server's dads.conf file like shown below: =========== dads.conf ============= ... PlsqlCGIEnvironmentList HTTP_OAM_REMOTE_USER PlsqlCGIEnvironmentList HTTP_OAM_REMOTE_USER_GROUPS PlsqlCGIEnvironmentList HTTP_OAM_REMOTE_USER_EMAIL PlsqlCGIEnvironmentList HTTP_OAM_SAMACCOUNTNAME
But we are not able to read the value of this attribute in the Apex application.On the Apex application, we have a text box which shows the value of this header variable. This textbox is attached with the following stored procedure call to fetch the header variable: =================== begin :P1_HEADER_VALUE := owa_util.get_cgi_env( 'HTTP_OAM_SAMACCOUNTNAME' ); end;
The textbox shows the correct value if HTTP_OAM_REMOTE_USER is passed to the get_cgi_env method but does not shows anything when HTTP_OAM_SAMACCOUNTNAME is passed to the same method. if I am missing some configuration to pass the HTTP_OAM_SAMACCOUNTNAME haeder variable from OAM to Apex.
I have multiple application set-up using session sharing within the workspace.Technically all works fine, however it does not play nice with user behaviour.
Example: Users logs into APP_ID:100. Since he isn't authenticated yet, he provides user/pass and the APP_SESSION is authenticated. Now if the user switches using to another application (using a link provided in application 100) he gets redirect to APP_ID:101:APP_SESSION all is fine.
The session is already authenticated, the application shares the session and the user gains access to app 101 without having to authenticate again. All's fine!
However users don't behave they way. Instead of using an easy link in the application. They will use their own bookmark or type in the url for app 101 manually. That way the next application is either called with f?p=101:1:[SOME OLD SESSIONID FROM BOOMARK] or f?p=101 (with no further page or session info) In both cases instead of using the already authenticated session apex spawns a new session, which of course isn't authenticated yet thus forcing the user to authenticate and come complaining they have to login again.
Similar behaviour problems exists when the user opens a browser and tries to open both applications in each in a tab next to each other.Both tabs fetch there own initial session id and start writing it to the same cookie each in turn invalidating the other tab's session.These can lead to some fanatic ping pong actions. Thus it's impossible to open 2 applications sharing session in the same browser.
Is there any remedy for these situations?Can apex be as smart as for instance first trying to resume the session stored in the cookie and only if that session is invalid, start a new session?
how to use checkbox item, and trying to get checked options values via application global arrays. So, this may be quite simple question, but I'm completely stuck here...
When I was looking through various threads and guides, I've encountered checkbox corresponding array names like "g_f01" - "g_f50". And so far i saw that these names are derived from item name in generated HTML code, for example:
<input type="checkbox" name="*f10*" value="3" />
And this one stands for array name "g_*f10*".However, when I tried to do the same thing - i receive item name which looks like "*p_v04*", and therefore, I can't figure out, which array name should I choose to adress it properly.
APEX 4.0 Sometimes, I am getting the below error when I tried to logging into APEX workspace (after giving workspace name, User name and password), Expecting p_company or wwv_flow_company cookie to contain security group id of application owner.
ErrorERR-7621 Could not determine workspace for application (:) on application accept. I found some threads related to this but in different way not exactly when I am getting this error.
After 2 or 3 times, this error will not come and I can able to logging into workspace What is the cause for this issue??
Each time when I import an application into my workspace in local 10g XE using the APEX 4.2 Application Builder, I get the "ORA-02291, constraint wwv_flows_fk violated..". The application I whant to import was originally exported from [URL]. I found out, that it has to to with wwv_flow_application_install.get_workspace_id in the installation script, which obviously returns NULL and not my current workspace id as I suppose it should. I replaced wwv_flow_application_install.get_workspace_id by '<my worskspace id>' and then the import does work.
I have an application that I'd like to prevent activity in after a certain time of day, say 3pm. Is there any way I can force logout of all current users and then prevent re-login until 9am the next day (short of deleting all of their login credentials and then recreating them the next morning)?
We have developed an application for our clients,planning to deploy it in client server soon. we have plans to support the application in future,so we want to restrict the clients from any modifications. By Doubt is, 'build_status=Run only' alone,cannot protect our application from client developers to edit our application,
Because though we install our application as 'Run Only' at the time of installation in client instance,we can still import the original application and change the type to 'Build and Run Application',and run the new application as 'Build and Run'.(which is not supposed to) we want to make sure,if there is any way we can protect our application from modifications after client side installation.
I'm trying to connect a javascript UI control within my page to an APEX Application Process. The control calls the application process via AJAX and appends a variable number of GET / POST parameters to its URL.What is the best way to obtain these parameters from within the PLSQL procedure of the process? Or is there a better way to connect my javascript AJAX control to the Database behind my APEX app?
I have some applications on Apex public workspace (apex.oracle.com), and suddenly the Tree View, on Application Builder stopped showing any content. If I select "Component View", I see the page components, but if I switch to tree view, it shows me only some empty frames.
I'm trying to set up a PL/SQL dynamic action that is triggered by clicking on a button. The dynamic action sets two values in a table and then I would like to redirect to another page. Setting the values works fine. The code is below:
declarel_information varchar2(255) := :P94_FILENAME;BEGINcommit;UPDATE VDI_METADATASET CREATEUSERLISTNAME = l_information, CREATEUSERLISTON = sysdate();commit;htp.init;owa_util.redirect_url('f?p=&APP_ID.:81:&APP_SESSION.::NO:::');END; The redirect fails with the following eror: "Error: parseerror: JSON.parse: unexpected non-whitespace character after JSON data"
how to redirect to a page from within PL/SQL . None of them result in success.
Unless I'm not understanding this error it means that it can find the ACTION part that is attached to the WHAT part of this Dynamic Action? The Dynamic Action does work when the application is run (in Development)also, there are 3 others that are similar to this one. The export was created by the export utility in the Application Builder.
If I export only the page and import that into Production the import is successful and the page runs correctly. This is error is happening only when I try to import the entire Application.There are many other changes made which is why I was trying to do an Application export/import instead of individual pages.
I have to modify the Form layout of an existing application (Application Express 4.0.2.) where the data for each field is retrieved using SQL statements
Presently the form looks something like this and the Data for each field is rendered properly in this layout:
UNIT # : 123456 ADMISSION #: 2012101510 DISCHARGE DATE: ADMISSION DATE: FIRST NAME: JON LAST NAME: DOEFIRST NAME, LAST NAME and UNIT # are all "Display Only" item type.
What I'm trying to do is to move "FIRST NAME" underneath "LAST NAME" and "UNIT #" next to "LAST NAME" This part is very simple. However, the issue I'm having is as soon as the "UNIT #" is moved next to "FIRST NAME", the data for "FIRST NAME" and "LAST NAME" simply disappear
This is how it looks ADMISSION #: 2012101510 DISCHARGE DATE: ADMISSION DATE: FIRST NAME: UNIT #: 123456 LAST NAME:
I have played around for hours and even created from scratch a new page with a new form using SQL statements to pull the data for each field, only to get the same result.
I have an application item that receives a web service result. This result is like 'MARIA','JOSE','JESUS'. I'm using this string into the parameters of the interactive report, but this is not recognized. I'm showing the content of the application item into a pl sql region and the content is 'MARIA','JOSE','JESUS', when I include this application item into the query, the IR shows me 'MARIA','JOSE','JESUS'
How do I center a button within a region? I tried 'align="center"' but this seemed to be ignored. The button is at the left of the screen. Also, what are the 'display points' (Page Template Region Position 1-8) used for, and why is there a specification for column position of 1-9? Could these be attributes that will allow my button to be centered on the window instead of on the left?
I am using Apex 4.2. On a click of button a Dynamic Action is written, which calls a DB Package. The DB package has exception handlers and also the package has two output parametersError Code and Error MsgSo in my code(Dynamic Code) i make a call to the package and checks the value for Erroc Code.
Begin Package call...... If v_error_code <> '0' Then Raise SC_Error; End if;Exception When SC_Error Then RAise_Application_error(v_err_code, v_err_msg);End;
But when i run the page and I click I get an Internal exception errorOutput from Debug -- I am not sure what the Cell in Red colour means, because the package is returning a correct message (before the red line).AJAX call returned server error ORA-20003:
Customer has already been matched for Execute PL/SQL Code.4......is_internal_error: true4......apex_error_code: APEX.AJAX_ SERVER_ ERROR4.. ora_ sqlcode: -200034......ora_sqlerrm: ORA-20003: Customer has already been matched4......error_backtrace: ORA-06512: at line 41 ORA-06512: at "SYS.DBMS_SYS_SQL", line 1926 ORA-06512: at "SYS.WWV_DBMS_SQL", line 973 ORA-06512: at "SYS.WWV_DBMS_SQL", line 999 ORA-06512: at "APEX_040200.WWV_FLOW_DYNAMIC_EXEC", line 830 ORA-06512: at "APEX_040200.WWV_FLOW_PLUGIN_UTIL", line 2304 ORA-06512: at "APEX_040200.WWV_FLOW_DYNAMIC_ACTION_NATIVE", line 442 4......component.type: APEX_APPLICATION_PAGE_DA_ACTS4......component.id: 231852037977562094......component.name: NATIVE_EXECUTE_PLSQL_CODE4.
Execute Error Handling Callout defined on Page or Application Level4...Execute Statement: begin declare l_error wwv_flow_error_api.t_error; begin l_error := wwv_flow_error_api.g_error; wwv_flow_error_api.g_error_result := apx_error_utils.handleerror ( p_error => l_error ); end; end;4......Values changed by callout:4..
An unexpected internal application error has occurred. Please get in contact with your system administrator and provide reference# for further investigation. 4..display_location: ON_ERROR_PAGE4Stop APEX Engine detected4Final commit4-1 - 59
I need to change "File Character" when I export application with Apex 4.2.1.00.08 version, but this option, is not possible. The ComboBox already select with
"Unicode UTF-8]', but I need "ISO-8859-1 - Europa Ocidental",
My question is, if I define an object type (create type ... as object ...) is it possible to hold a variable of this type as the session level? For example, if I am creating an order using multiple web pages, it would be much easier (and intuitive) to create and manipulate an order object than to hold the data in generic collections.
If that is not possible, is there some way to make a generic Apex collection appear more application specific? By this I mean some way to map the columns C001, C002, ... to more intuitive names such as CUST_NO and ORDER_DATE. I had considered possibly creating a view of the APEX_COLLECTIONS view which would rename the columns but then I would also have to create a bunch of instead of triggers if I wanted to update it as well.
I'm currently new to Oracle 10g SQL and I need to query a large library file.I need to find the different first keywords associated with references written by authors who have more than 10 references in the readings table.
I am using forms 6i with 10g data base. i have compiled a form in developer 6i after that when i open *.fmb file it is showing PDE-PLI018 Could Not find Library "form name". i have not attached any library in form.
We are getting below error....Our one package called orawpcom.dll library file.
ERROR at line 1: ORA-06520: PL/SQL: Error loading external library ORA-06522: Unable to find library '/oracle9i/app/product/11.1.0.7.0inorawpcom.dll'. ORA-06512: at "GFSAM.OAINVOKEDOUBLE", line 1 ORA-06512: at "GFSAM.ORDCOM", line 229 ORA-06512: at "GFSAM.ORDEXCELSB", line 450 ORA-06512: at line 43 ORA-06520: PL/SQL: Error loading external library ORA-06522: Unable to find library
