Access database Backing Bean field

Similar Questions

• Exception occurred in the Microsoft Access database engine: the field is too small to accept the amount of data you attempted to add.

  Hello

  I try to save a path in a table in an access database, but an error occurs:

  "Exception occurred in the Microsoft Access database engine: the field is too small to accept the amount of data you attempted to add." Try insert or paste less data. "in create a NI_Database_API.lvlib:Rec - Command.vi-> NI_Database_API.lvlib:Cmd Execute.vi-> NI_Database_API.lvlibData.vi B tools insert-> project total.vi.

  I've attached a JPEG of a part of the code and the code, but it won't work because the database is not attached,

  any help please?

  Ok

  I solve the resized problem.i column size

  Thank you

• No methodActions in a module of the App application and access of backing bean

  USNG ADF 12 c on Windows 7.

  I've inherited an application that does not have methodActions defined in the pageDefs and uses a custom method to get the instance of the app module (return (appModule) getDCBindingContainer () .getDataControl () .getDataProvider ()) by supporting beans.

  The latest I can remember seeing in a document is a bad practice.

  All the places where the app module instance is acquired should be changed to methodActions? Or am I worried for nothing here?

  Thanks for your opinion!

  Kind regards

  Dave

  ^ Well, for me, this is a no go to use the code you provided. You should not use the application module in the bean because it tends to violate the MVC pattern. You may have to implement a method of the application module, add to the interface and use via the pageDef as an action method customer. This seems to be more work but allows to encapsulate the business logic in the view layer. The advantage of using methods defined in the pagedef, is that they are handling errors the same way. There is no need to handle the error yourself. The framework know dangels done in methods (if you do not use pl/sql to change the db directly and does not synchronize the frame later).

  request module is the interface that everyone should use.

  Timo

• cfm code form field to enter in the access database

  anyone would take a few seconds to give some info very newbie...
  
  I want to take a few fields of the form (name, phone, etc.) ... Take these form fields and store this entry in the access database (call it DATA .mdb). Basically, use the CFM page: a GUI for the database.
  
  Thank you!

  Dan, it's exactly what I needed. I know simple SQL and can handle it. Thank you for your time.

• [Beginner] Best practices for Backing Bean, data binding

  Hello world
  
  
  I followed a course of oracle in November ' Oracle Fusion Middleware 11g: Creating Applications with ADF I '
  
  Awesome, now I know what are the different parts of the framework.
  
  But now, I would go a little in depth.
  
  Here's a simple example
  
  Login page
  Backing Bean
  Session Bean
  Read only the View (the view selection) object
  Application module
  
  We have a user name and password in a table, but the password is encrypted in the column, in fact, is the checksum of the password.
  
  Here's what should be done.
  
  Login (username, password) Page-> proceed button-> to get the data of VO-> compare usernames-> transform password from the login page (MD5)-> compare him the password of database->
  assignment of params session bean-> redirect to Connexion2 page.
  
  Here's what I actually
  
  I have an AM listening with a java class having a doLogin (String username, String password) method with a return value of string.
  
  This method is exposed to the UI via a client interface.
  
  Here are my questions.
  
  Where can I check and turn all these params. In playback only VO via a class Java tuned, which extends ViewRowImpl or listening AM class java?
  
  And now for the session bean where I have to instantiate. I guess the Backing Bean.
  
  Wouldn't be better to call the client interface of the bean to support, then instantiate the session bean, with params from AOS, in this BackBean.
  
  I so much question that I don't know where to start. :-(
  
  Sincerely for your help.
  
  Senecaux Davis

  Hello

  If you want to keep the information for the duration of session, create a managed bean and configure it to session scope. If you need to access you can use EL directly or from Java in another managed bean (or bean backing) whereby the bean is instantiated. You can also use managed properties to pass the reference of a bean to support session bean.

  As for the location of the method, you must use a View object to query the user table just the user name. You read the encrypted password (assuming a single user entry is found) and compare it with the provided password. You return true/false value and use an OperationBinding in a bean managed to access the customer interface method through the ADF (action method) link layer

  OperationBinding operation = bindings.get ("login") (OperationBinding);
  operation.getParamsMap () .put ("username", username);
  operation.getParamsMap () .put ("passwd", pw);

  Boolean result = operation.execute ();

  ...

  Frank

• Get the number of users connected to an access database

  Hello

  I want to develop a function that returns the number of users connected to an access database. I have CVI 2013 and the SQL Toolbox.

  Thanks in advance!

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

  Hello

  I have a base on the network, and I wanted to develop a (CVI 2013 + SQL toolkit) function that returns me the number of users connected to this base.

  Thanks in advance!

  Thanks guys, unfortunately I have not found a SQL function that return the number of directly connected user. This is possible only on SQL Server.

  What I have is this: I created two fields in my database: a 'DB_is_used' flag and a "Username" field, and each user how want to use the database, should check these fields if it is empty, it inserts the name of its PC and use the database. Or, if the field is not empty, it will see a popup message displays the user name 'book' this database and the hedisconnect of him immediately.

  It works for me and I am satisfied.

  Kind regards

• Problem with insert/update statements on the MS Access database

  Hi all

  Before posting this question, I did a search and found this thread.

  I have the same problem as pawel had (in this thread), i.e. cannot insert or update data in the Access database. However, the reason is not that I am using some keywords in my domain name - it has been several years using SQL, some things are 'unwritten' rules But this is the first time I try something in LV

  However, after losing all day for work that I expect to do the same morning in 1 hour, try many different options and debugging until the level low in the Toolbox of data base screw (building or higher), I saw some weird SQL statement being trained in-house - so I tried what Troy has tried.

  "password" is a reserved word in the Jet.  I just looked at MOManagers_M, but by changing the field "password" to 'passworda', it does the job.

• Using the Access database in CS5?

  I'm incredibly frustrated. I have a simple database in Access, consisting of SSN, phone number, address, name, ID (primary key). I have a simple form with a select / / value of the option initially filled with the 'name' field, return the ID as value when picked up. I have a function in the header, called Onchange.

  In the Onchange function I can generate a successful

  "Select * where ID = '123'.

  now how can I apply to the Access database, a given record of return in a recordset that can now be dissected in the various fields which is then displayed on the screen?

  An example would be wonderful...

  Thank you!

  Ross

  I didn't watch the first example, but certainly the second example shows how to use Access in Dreamweaver, full screen. Just click on YouTube.

  Which brings me to ask why you use Access when MySQL is a much better option.

• How to refresh data in backing bean-based component SelectOneChoice

  Hello.

  I use JD Studio Edition Version 11.1.1.5.0 on Weblogic 11.1.1.5

  I have the resulting page with SelectOneCoice fragment of the backing bean (used as filter)

  < af:selectOneChoice label = "#{projectBundle ['label.toolbar.spinbox.period']}" "

  valueChangeListener = "#{backingBeanScope.backing_jsf_fragments_project_ContentMainView.onPeriodValueChangeListener} '"

  Binding = "#{backingBeanScope.backing_jsf_fragments_project_ContentMainView.SOC2} '"

  ID = value = "#{pageFlowScope.ContentMainView.period"soc2"} ' autoSubmit ="true">"

  < f: selectItems value = "#{pageFlowScope.YearsListBean.yearItems} '"

  Binding = "#{backingBeanScope.backing_jsf_fragments_project_ContentMainView.SI2}" id = "si2" / > "

  < / af:selectOneChoice >

  It supports bean which reads the data from the database and creates the list + adds value null

  package sk.web.view.bean;

  import java.util.ArrayList;

  import java.util.List;

  Import javax.faces.model.SelectItem;

  Import oracle.adf.model.binding.DCIteratorBinding;

  Import oracle.adf.share.logging.ADFLogger;

  Import oracle.jbo.Row;

  Import sk.web.view.common.utils.ADFUtils;

  /**

  * Class is supposed to provide a list of the years for the af:SelectOneChoice component.

  */

  public class YearsListBean {}

  private static final String PERIOD_ITERATOR_NAME = "PeriodView1Iterator"; Auto generated id

  private list < SelectItem > yearItems;

  public YearsListBean() {}

  Super();

  yearItems = new ArrayList < SelectItem > ();

  addYearsToList();

  }

  public void addYearsToList() {}

  DCIteratorBinding iter = null;

  ITER = ADFUtils.findIterator (PERIOD_ITERATOR_NAME);

  Rank [] rows = iter.getAllRowsInRange ();

  addYearItemToList ("", "");

  for (int i = 0; i < rows.length; i ++) {}

  Line = lines [i];

  log.info ("row [" + Integer.toString (i) + "]:" + rows [i].getAttribute("Year").toString ());

  addYearItemToList (rows [i].getAttribute("Year").toString (), rows [i].getAttribute("Year").toString ());

  }

  }

  public void clearYears() {}

  log.info ("called.");

  getYearItems () .clear ();

  }

  ' private void addYearItemToList (String strInYearLabel, String strInYearValue) {}

  SelectItem tObjItem = new SelectItem();

  Configuration object

  tObjItem.setLabel (strInYearLabel);

  tObjItem.setValue (strInYearValue);

  Add list ro

  yearItems.add (tObjItem);

  }

  public list < SelectItem > getYearItems() {}

  Get an output

  Return yearItems;

  }

  }

  When I insert the new record in the DB table, I want to see the new value in the filter. How to get there?

  I tryied to get the current instance of YearsListBean

  YearsListBean yearsList = (YearsListBean) FacesUtils.getManagedBean ("pageFlowScope.YearsListBean");

  Clear and then refill

  yearsList.clearYears ();

  yearsList.addYearsToList ();

  at the end I refresh view Add partial target

  AdfFacesContext.getCurrentInstance () .addPartialTarget (getSoc1 ());

  But this procedure does not work. Please help me find the working method.

  Thanks in advance.

  I found the bug in my code. I added partial target the wrong component. Now, refresh works fine.

• How to get the current value of db in backing bean

  Hello
  
  I use jdeveloper 11.1.2.3.0
  
  I would like to know how I could access the old value of an attribute in backing bean.
  I know I can get it in terms of EntityImpl with the getPostedAttribute function,
  but as I see that I'm not allowed to access this function in the ViewImpl.
  I get this error:
  Error (151,33): getPostedAttribute (int) has protected access to oracle.jbo.server.EntityImpl.
  
  Could you help her?
  What is the right way to get the current value on db in backing bean?
  
  Thank you very much!

  You can add a transitional attribute to the entity object to hold the old value of the desired attribute, then you can add this attribute to the view object.
  Check [url http://www.youtube.com/watch?v=iKVIiK0FBXI] retrieve the previous value of an attribute ADF BC

• Get the value of the bind variable in backing bean class VO Impl

  Hello
  
  I have a VO that includes a bind "pOrgId" variable, the VO has a java VO Impl class that includes:
  
  /**
  * Returns the value of the variable to pOrgId.
  value of the variable * @return for pOrgId
  */
  public {getpOrgId() number
  return (Number) ensureVariableManager () .getVariableValue ("pOrgId");
  }
  
  So it is possible to obtain the value is concluded by the binding variable using this class in a backing bean? (I tried to import the VOImpl class in the bean to support, but getpOrgId is not available?).
  
  (JDEV 11.1.2.3.0)
  
  Concerning
  Carl

  Hello

  When you create a ViewObjectImpl class, none of these options is to generate the getter/setter for bind variable. Create a client class interface and expose the get method for the variable binding. Now, you can reference the method since a binding method in the ADF, which you then access a managed bean by calling

    BindingContext bctx = BindingContext.getCurrent();
    BindingContainer bindings = bctx.getCurrentBindingsEntry();
    OperationBinding oper = (OperationBinding) bindings.get("name of the method binding");
    Object returnVal = oper.execute();
  

  Frank

• Cftransactions works with MS Access databases?

  The project I'm working on that accesses its data from a MS Access database. When you create a new person in the database there are several tables where the data is to be inserted and updated.

  I had the problem, that when the second, third... insertion fails, one is already done. Then I wanted to wrap the insertions in a cftransaction, so when a call fails the other ones get restored.

  But now no insertion takes place, even when there is no error. I have not found a reliable information it is possible to use with MS Access dbs cftransactions. Is it a definitive statement if it works with MS Access at all or it will work with what version?

  Hope you can help out me.

  I doubt that cftransaction will do you good with MS Access.  The main objective of the cftransaction tag is to use the functionality of the underlying database transactions.  In general, link operations several query statements together as an atomic unit such as if one of the statements fails, the entire transaction is rolled back and the database is left intact.  Access does not have a transaction log, so there is no way so he could process transactions (and thus to perform restorations).  If you find yourself with incremental updates that you see.

  This is another reason you will see recommendations of other ColdFusion developers DON'T use MS Access in ColdFusion applications.

  -Carl V.

• Browse from backing bean

  Hello.
  
  My current view is a task flow issue, let's call it "exit".
  Now in my current opinion, I serverListener and inside backing bean I want to access this result to "leave".
  How?
  
  
  x 10
  Concerning

  Check harvest Article Frank http://www.oracle.com/technetwork/developer-tools/adf/learnmore/nov2010-otn-harvest-190744.pdf 'How to navigate in the stubborn workflow' on p. 31.

  Timo

• Get the Application via Backing Bean ADFBC model

  I'm trying to get an instance of an Application model via a backing bean and it will return null; I see the error message:
  
  * < InstantiateDataControl > [1097] INFO: search mDCRefMap has failed. The cpx has an entry dataControlUsages 'dc '? *
  
  I can drag a VO on my jsff page and that seems to work fine but when I want to get the app module and manipulate a VO in the code, I get the above.
  
  I tried both approaches, and they produce the same error message and null data control.
  1.
  String dcFrameName = BindingContext.getCurrent () .getCurrentDataControlFrame ();
  DataControlFrame dcframe is BindingContext.getCurrent () .findDataControlFrame (dcFrameName);.
  DataControl dc = dcframe.findDataControl("NavModuleAMDataControl");
  
  ApplicationModule am = ((DCDataControl) dc) .getApplicationModule ();
  am back;
  
  2 return (ApplicationModule) JSFUtils.resolveExpression ("#{data." + name + ".dataProvider"});
  
  
  Anyone seen this before?

  See the section "9.10.3 How to access an Application Client Module Interface in a Web Application from merger" of the Guide of Fusion JDev 11.1.2.0.0:

  http://download.Oracle.com/docs/CD/E16162_01/Web.1112/e16182/bcservices.htm#sthref356

  DMI

• The difference by calling an application to a backing bean module

  Hello everyone!
  
  
  I do not understand exactly, where is the difference by calling an application of a bean of the following support module.
  
  Example 1

  FacesContext context = FacesContext.getCurrentInstance();
  ValueBinding vb = context.getApplication().createValueBinding("#{data}");
  BindingContext bc = (BindingContext)vb.getValue(context);
  DCDataControl dc = bc.findDataControl("AppModuleDataControl");
  AppModuleImpl appModule = (AppModuleImpl)dc.getDataProvider();

  Example 2

  String amDef = "model.services.AppModule";
  String config = "AppModuleLocal";
  AppModuleImpl appModule = (AppModuleImpl)Configuration.createRootApplicationModule(amDef, config);

  Example 3 (same as example 1?)

  String EL = "#{data.AppModuleDataControl.dataProvider}";
  FacesContext fc = FacesContext.getCurrentInstance();
  ValueBinding vb = fc.getApplication().createValueBinding(EL);
  AppModuleImpl appModule = (AppModuleImpl)vb.getValue(fc);

  Please can someone explain, the three examples do? What kind of example is best to call an application-module to a backing bean method?
  
  
  Thanks and greetings
  Majo
  
  Edit: I use ADF BC 10g in JDev10 :)

  Hello

  BindingContext bctx = DCUtil.getBindingContext (request);

  There is nothing else that #{data}. Best is to always access #{bindings} El to get a handle to the binding object. This way you can be sure that the object exists and is instantiated.

  DCBindingContainer links =... solve #{bindings}
  BindingContext bctx = bindings.getBindingContext ();
  Control of DCDataControl = bctx.findDataControl ("Name");
  ApplicationModule m = control.getDataProvider () (ApplicationModule);

  Frank