using the variable binding

Similar Questions

• Execution plan will change if I use the variable binding instead of the literal value?

  Hi guys,.
  
  Suppose I have a select "... Of... WHERE ID = 2 and... "if I go to use the variable binding instead of the literal value 2," SELECT... " Of... WHERE ID =: p_id and... ", the execution plan change?
  I test multiple statements, the plan does not change, but I don't know if it would even as well as in some other cases.
  Someone at - it ideas?
  
  Thank you very much.

  Anneso wrote:
  Hi, sorry for the unclear post, it's 11 GR 2.

  As Sybrand already mentioned, there are a lot of change that came in the implementation of the bind variable in some versions of Oracle db. Since you're on 112, it is still true with the introduction of Adaptive Cursor Sharing . Please have a read on it since the post below written by the development of Oracle optimizer group.
  http://blogs.Oracle.com/optimizer/entry/why_are_there_more_cursors_in_11g_for_my_query_containing_bind_variables_1

  Aman...

• How many times can I use a variable binding in a query of the VO?

  Is it possible that I can use a variable binding in a query of VO just once?

  I test a query that keeps throwing the Houston-27122 error by pressing the application module tester. I tried to limit the problem to the simplest possible case, and it seems that the error is caused by the fact that I use the same variable bind two or more times.

  When the query looks like this:

  

  I have run, enter 'x' and it returns me the result.

  When I change to:

  

  I have run, enter the value

  

  and immediately get the error

  

  The same thing in sqlplus runs without problem:

  

  My version of JDev is build JDEVADF_11.1.1.9.0_GENERIC_150314.0718.6673

  Please, advise.

  P. S. where can I find documentation queries are supported in your? In particular, I'm interested if I can use WITH the clause. There seems to be some confusion on this matter (see, for example, Oracle SQL WITH clause support - JDeveloper and ADF)

  Thank you.

  It depends on:

  Open your VO in JDev and go the the query page.

  In the lower part, there is a drop down 'link type', it is usually set to "JDBC-positional. In this case, you will need to provide the bind value for each occurrence of the variable binding separately.

  You could change that to "named" (don't remember the exact name). But beware, this will also affect all relatioships master retail to others your. I think that this is not a good idea to change the style of binding to a single VO.

  Good bye

  DPT

• Use sessionScope as the value of the Variable binding

  Dear all,
  
  I have a variable in sessionScope, and I want to use it as a condition of application of a ViewObject.
  
  I found a thread talking about, there's only one: (Re: set the value in the global variable. )
  How to use the value in the scope of session groovy script?
  
  Model project:
  Set variable in the scope of the session:
  ADFContext.getCurrent () .getSessionScope () .put ("Empno", empno);
  
  Getting value of session scope:
  Object empno is ADFContext.getCurrent () .getSessionScope () .get ("Empno");.
  
  ViewProject:
  Set variable in the scope of the session:
  FacesContext.getCurrentInstance () .getExternalContext () .getSessionMap () .put ("Empno", empno);
  
  Getting value of session scope:
  Object empno is FacesContext.getCurrentInstance () .getExternalContext () .getSessionMap () .get ("Empno");.
  
  Getting value of scope jspx page session
  #{sessionScope.Empno}

  Hi Samson,.

  Here are the groovy expression to access the value of the sessionscope:

  adf.context.sessionScope.role
  

  But, as the said John instead to access the session of the model can be a method of model (whether in AMImpl or voImpl) who takes the role as a parameter value and sets the value of the variable binding of the vo, then call this AM from the bean method passing the role value by getting the scope of the session.

  Jean Lou

• How to set the value of the variable bind in VO on page load?

  Hello, I use JDeveloper 11.1.2.3.0.

  I created a VO in my application that uses a variable binding in the where clause. I want to put the value of this variable on the loading of the page automatically.

  I read that I can do this through setNamedWhereClauseParam()... but I can't find out where and how to use it.

  Can anyone help please?

  You can put in different places:

  AppModuleImpl,

  ViewObjectImpl,

  ViewRowImpl

  Just him export the customer interface and use whenever you want

• How to use a variable binding in an IN clause

  I'm trying to use a variable binding in an IN clause where the column is a type varchar2. Something like:
  

  select *
  from test
  where test_column in (:bindVariable)

  I tried the assignment of channels bind variable separated by commas (for example, test, test, test) and separated by commas strings with quotation marks (for example. 'test', 'test', 'test'). None of these work. Anyone know the correct way to do this?
  
  Thanks in advance.

  http://tkyte.blogspot.com/2006/06/varying-in-lists.html

  Presents many options.

• How to change the value of string clustered, to implement using the node value of property instead of writing directly on the flow of data or using the variable

  new to labview :-) and I have a problem when I want to change the value of a string in bunches, and I want to implement this using the node value of property instead of writing directly to the stream or by using the variable, enclosed is the picture.   No matter, I have change in cluster (control) or value of Popery out (indicator) cluster, the value (sensor 7) dataflow keeps unchanged even I gave the new value by value of property node. Thank you to give me some advice about this.

  

  Hi GerdW

  Thanks a lot for your answer. The reason I'm stubbornly tring to break the flow of DATA is: we have a test system that have about 100 screws, they have a few connected flow, some of them will be unbundling a cluster dataflow chain to check the value in order to make the different cases.  Now I want to insert user event by changing the control and influential cases during run time.

  As I initially uses a global variable (to control cases) instead of unbundle string data flow, it works well.  But then, I found there are a lot of screws that are using the string unbundle.  One of the 'lazy' means, I tried is to change the value via the property node (because that way, I did not need to find all the places where using the unbundle string and replace them with the global variable), then I noticed a problem with "dataflow", the value in the stream of cluster in fact will not be changed by changing the value of the property node.

  I did a test with VI simple (like the picture in last post), and after reading your advice, I tell myself that I need to understand the concept of "DATAFLOW" in labview, it seems that my "lazy" way can not work in this scenario.

  I have attached the criterion VI here, have you furthur suggestions on what I can do in this case?

  Mant thanks!

  Minyi

• Dynamically create a file using the variable

  HI, I am facing a problem in creating file on the time of execution using the variable.
  I have a variable file name. In the tab refresh, I wrote a query SELECT TO_CHAR (SYSDATE, 'YYYY, MM, DD') | 'TEST' FOR DOUBLE. I tested the variable and its value is correct.
  
  I've created an interface allowing to extract the data in the table and store it in the file. I assigned the variable file name in the file.
  
  Now when I run the interface... the file is created, but the header is created in different file and its name is ambiguous, g (19) and the data are placed in the other file with the name that matches the value of the variable filename...
  
  It is two ODI creates two files a single header and other data...
  
  When I run my interface in a package of the file created perfectly... but one i want to use package I want to create a file via the interface only running

  What is the name of the second file? (the file that does not have the name of the variable)

• You should have seen the date using the variable of presentation

  Hi all
  
  I am facing a problem in the display of the selected date of the guest in the report using the variable of presentation. I have a guest of data (calendar prompt), where the user selects the value. I take this value in the variable RBAP of presentation and report when I try to display this value using the same presentation variable, I get my date in the following format
  
  "TIMESTAMP 2010-10-22 00:00:00 '.
  
  I'm just using ' @{RBAP}' in the formula in the column.
  
  I want to show my date in the format DD/MM/YYYY. How to do this?
  
  I have used CAST (' @{RBAP} {' as DATE} and tried to change the data to dd/mm/yyyy format, but it does not work.)
  
  Please suggest
  
  Thank you
  Ronny

  in the default section to write the SQL...

  Select the OPTION case SENSITIVE WHEN 1 = 0 THEN AnyExistedDateColumn CURRENT_DATE of OTHER END OF SubjectArea

• How to use the variable in the path of the source of an image in flex

  Hello
  I just want to know that how to use the variable in the path of the source of an image in flex

  Hello
  I just want to know that how to use the variable in the path of the source of an image in flex

• Using the data binding on each button in a ToggleButtonBar

  Can someone tell me if it is possible to use the data binding on the individual buttons in a ToggleButtonBar and, if so, how?
  
  I want to be able to use the data binding for each individual button in the ToggleButtonBar 'enabled' property, but is not possible using MXML because the ToggleButtonBar takes a data provider to display labels for each button and, obviously, I can't set the "enabled" on the values of dataprovider property because they are not objects Button. For example, I'm not allowed to do something like this:
  
  < mx:ToggleButtonBar id = "tbb".
  toggleOnClick = 'true '.
  itemClick = "clickHandler (event)."
  creationComplete = "tbb.selectedIndex = 1" >
  
  < mx:Button label = "A" active = "{...}" / >
  < mx:Button label = "B" enabled = "{...}" / >
  < mx:Button label = "C" enabled = "{...}" / >
  
  < / mx:ToggleButtonBar >

  Ah! The ToggleButtonBar. Liaison. MXML. mysterious. Not obvious. But yes, we CAN do...
  First, you will need to get the buttons to toggle. Did you know that they are actually ButtonBarButtons? Once you get an instance of each of them, you can do the binding in MXML.

  Each button LINK below the ViewStack is bound to a ToggleBarButton.
  When you click a related button below, the LINK button above it will have its enabled enabled/disabled property. Then a link fires, setting the enabled property of the related ToggleBarButton.

  This example requires that you know advance how toggle buttons and buttons, you have, so it will not evolve well. Whenever you add a button, you will need to enter hard in the 'getButtons' function, which implements the ButtonBarButton instances. But if you have a known quantity of buttons, no problem.

• How to use the data binding on a cluster?

  Hello

  I just discovered the data binding and used it on some primitive controls/indicators. I love the cleanliness of the approach (no additional querying and son required!)

  Now, this page gives to think I can link a cluster with a shared too variable. However, when I right click-> properties, I see that the tabs appearance and Documentation (and I know that I did not accidentally choose an element inside the cluster, because (1) there is a typedef strict, and said the title of (2) 'The Cluster Properties' dialog box). Where can I find the data binding tab?

  Thank you

  Hi JKSH,

  What you're doing is possible if you make the file .ctl as the definition of type rather than a strict definition of type. With a strict definition of type all instances of the same .ctl file link that is why you cannot use data binding.

• ViewObject accesses the variable binding a sessionScope setting?

  Hello
  
  using the Fusion of ADF Jdev11g request
  ViewObject get a sessionScope parameter and set in the binding variable? without the help of executeWithParameter
  
  Thank you
  greenApple

  N °

  You must call a method in the model layer and pass the parameter.

  Timo

• declare the variable binding

  I do homework here and ran into the wrong hope that someone here can help
  
  1. I thought that I understand the conscept of variable binding (which I think it is the same concept as the pointer in C/C++ programming), is that correct?
  
  2. I write the code and find the problem below, please point out what I did wrong?
  
  
  SQL & gt; describe the plants
  Name Null? Type
  ----------------------------------------- -------- ----------------------------
  PLANTID NOT NULL NUMBER (5)
  COMMONNAME NOT NULL VARCHAR2 (30)
  LIKE NOT NULL VARCHAR2 (30)
  SPECIES NOT NULL VARCHAR2 (30)
  FLOWERCOLOR VARCHAR2 (10)
  HEIGHT NUMBER (4.1)
  DATE OF ACQUIREDDATE
  LISTPRICE NUMBER (6.2)
  
  
  
  
  SQL & gt;
  declare
  
  
  bv_color variable varchar2 (10);
  v_price plants.listprice%Type;
  
  
  
  cursor cur_color is
  Select distinct lower (flowercolor) color
  plants;
  
  
  
  Start
  
  
  for rec_color looping cur_color
  
  : bv_color: = rec_color.color;
  
  
  
  Select avg (listprice)
  in v_price
  plants
  where lower (flowercolor) =: bv_color;
  
  
  
  dbms_output.put_line)
  "The average price for our plants with ' |: bv_color |"
  "flowers is $' | Round(v_price,2) | '.');
  dbms_output.put_line ('thank you');
  
  
  
  end loop;
  
  
  
  exception
  while others then
  dbms_output.put_line (' my exception:' | sqlcode |)
  ' : ' || SQLERRM);
  end;
  /
  SP2-0552: Bind "BV_COLOR" variable not declared.
  
  

  This is the way of declaring bind variables in SQL * more.

  In a PL/SQL block, you do not use bind variables like SQL * more. You just use normal variables. The PL/SQL engine is smart and sends SQL statements to the SQL engine containing all PL/SQL variables converted to bind variables. If it works transparent in PL/SQL and you don't have to do something more.

  Kind regards
  Rob.

• Using the Variable more than once in a statement

  I tried searching but can't seem to find any other discussions where people have this problem.
  
  I use a select statement, and it contains, I have the same variable used several times. The problem is that when I run the statement, the substitution variable appears as many times as the variable appears in the declaration. It is not a show-stopper, but it's pretty boring. There is an option somewhere that I don't see who would do this work by popping only once?

  Normally you use bind variables (:) instead of substitution variables (&), but if you insist on using them, use DEF to define them before issueing your statement.

  Have fun
  K.