Structure of the query with parameters

Similar Questions

• How to write the query with parameters below and is null

  
  Hi, I need to recover the data if the parameter is passed on the ground, else retrieve all records where the field is null

  Example of

  
  CREATE TABLE DEPT
  (DEPTNO NUMBER (2),)
  DNAME VARCHAR2 (14).
  LOC VARCHAR2 (13));

  INSERT INTO DEPT VALUES (10, 'ACCOUNTING', 'NEW YORK');
  INSERT INTO VALUES DEPT (20, 'SEARCH', 'DALLAS');
  insert into dept values (30, 'SALES', 'CHICAGO');
  INSERT INTO VALUES DEPT (40, 'OPERATIONS', 'BOSTON');

  ALTER table dept add (object_id number);
  insert into dept values (50, 'OPERATIONS', 'BOSTON', 1);
  insert into dept values (60, 'OPERATIONS', 'BOSTON', 1);
  INSERT INTO VALUES DEPT (70, 'OPERATIONS', 'BOSTON', 2);

  Select * from Department where object_id =: p_object_id

  If I pass the object_id 1, it shloud retrieve the values of dept with object_id 1, but if I don't pass the object_id, it must retrieve all records where object_id is null

  IF 1 is passed as the id of the object, he must recover, 50, 60, if 1 is not passed as object_id it should 10,20,30,40 retive

  It works fine for me separately as,.

  Select * from Department where object_id =: p_object_id - 1

  Select * from Department where the object_id is null;

  Is it possible to do in a single query.

  Thank you

  SELECT *
  FROM dept
  WHERE object_id = :p_object_id
  OR (object_id is null and :p_object_id is null)
  

  is an approach.  It's a little talkative, but the meaning is clear.  If you can identify a value that would never appear in the data (for example-1)

  WHERE nvl( object_id, -1 ) = nvl(p_object_id, -1 );
  

  Justin

• Rewrite the query with joins, and group by

  Hello
  
  It's an interview question.
  
  Table names: bookshelf_checkout
  virtual library
  
  And the join condition between these two tables is title
  
  We need to rewrite under request without using the join condition and group by clause?
  
  

  SELECT b.title,max(bc.returned_date - bc.checkout_date) "Most Days Out"
             FROM bookshelf_checkout bc,bookshelf b
             WHERE bc.title(+)=b.title
             GROUP BY b.title;

  When I was in College, I read most of SELECT statements can be replaced by operations base SQL (DEFINE the OPERATORS). Now, I am rewriting the query with SET operators, but not able to get the exact result.
  
  Kindly help me on this.
  
  Thank you
  Suri

  Something like that?

    1  WITH books AS (
    2  SELECT 'title 1' title FROM dual UNION ALL
    3  SELECT 'title 2' FROM dual UNION ALL
    4  SELECT 'title 3' FROM dual ),
    5  bookshelf AS (
    6  SELECT 'title 1' title, DATE '2012-05-01' checkout_date, DATE '2012-05-15' returned_date FROM dual UNION ALL
    7  SELECT 'title 1' title, DATE '2012-05-16' checkout_date, DATE '2012-05-20' returned_date FROM dual UNION ALL
    8  SELECT 'title 2' title, DATE '2012-04-01' checkout_date, DATE '2012-05-15' returned_date FROM dual )
    9  SELECT bs.title, MAX(bs.returned_date - bs.checkout_date) OVER (PARTITION BY title) FROM bookshelf bs
   10  UNION
   11  (SELECT b.title, NULL FROM books b
   12  MINUS
   13* SELECT bs.title, NULL FROM bookshelf bs)
  SQL> /
  
  TITLE   MAX(BS.RETURNED_DATE-BS.CHECKOUT_DATE)OVER(PARTITIONBYTITLE)
  ------- ------------------------------------------------------------
  title 1                                                           14
  title 2                                                           44
  title 3
  

  Lukasz

• How to call a method of the AM with parameters of Bean managed?

  Hello world
  
  I have a situation where I need to call the Managed bean (setDefaultSubInv) AM, under value changes Listner method. Here's what I do, I added the AM method on page links, and then at the bean call it
  
  Class [] paramTypes = {};
  Object [] params = {};
  invokeEL ("#{bindings.setDefaultSubInv.execute}", paramTypes, params);
  
  It works and be able to call this method, if there are no parameters. Say that I pass a parameter to setDefaultSubInv(String a) method AM, I tried to call it bean but raise an error
  
  The string available = 'test ';
  Class [] paramTypes = {String.class};
  Object [] params = {DISP};
  invokeEL ("#{bindings.setDefaultSubInv.execute}", paramTypes, params);
  
  I'm not sure this is the right way to call the method with parameters. Can anyone tell how to call a method of the AM with bean to manage settings
  
  Thank you
  San.

  Just do the following

  1. your method in the Client Interface.
  2 - Add to Page Def.
  3 - Customize your Script like below one to reach your goal.

  BindingContainer links = getBindings();
  OperationBinding operationBinding = bindings.getOperationBinding("GetUserRoles");
  operationBinding.getParamsMap () .put ("username", "oracle");
  operationBinding.getParamsMap () .put ("role", "F1211");
  operationBinding.getParamsMap () .put ("Connection", "JDBC");
  Object result = operationBinding.execute ();
  If (! operationBinding.getErrors () .isEmpty ()) {}
  Returns a null value.
  }
  Returns a null value.
  }

  I hope it helps you
  Thank you

• Report with the query with union and parameters

  Hello
  
  We have an obligation to create a report with the request, which is the union and parameters.
  
  I intend to create a database for the report based on a query. But the problem here is that the way to pass parameters in the query.
  
  Request is something like that
  
  Select x.a, x.b, x.c
  x
  where x.year =: para1
  and x.status = 'A '.
  Union of all the
  Select x.a, x.b, x.c
  x
  where x.year =: para1 - 1
  and (x.status = 'c' and x.date =: para2 or x.status = 'I' and x.date < =: para2)
  
  Here x.year in the first select statement must be equal to: para1 and second select statement, it should be: para - 1.
  
  How this requirement can be achieved?
  
  Client don't want to separate worksheet, a parameter and another for the actual data that I tried with sys_context and it worked. But the client wants the result in a single sheet only... So I need to change their approach.
  
  Help, please.
  
  Thank you

  Hello
  Another option is to convert the request so that you will have the items from the selection
  for example on the query you provided that you can use:

  Select 'Curr' rec_type, x.a, x.b, x.c, x.year, x.date, x.status
  x
  where x.status = "A".
  Union of all the
  Select 'Prev' rec_type, x.a, x.b, x.c, x.year, x.date, x.status
  x
  where x.status in ('c', 'I')

  then, in the workbook, you will be able to create conditions such as:
  rec_type = 'Curr' and year =: para1

  rec_type = 'Prev' and year =: para1-1
  rec_type = 'Prev' and (status = 'c' and date =: para2 or status = 'I' and date)<=>

  Tamir

• Run the query with multiple parameters

  Dear

  Motion code below for the data is of per_all_people_f, who works for only one setting, when I pass 2 parameters, then is to take the last of them fail times two, could you pls advice how it both join in where clause.

  ================================================================================

  --------------------------------control file ----------------------------------

  ================================================================================

  ' Public Sub processFormRequest (pageContext OAPageContext, OAWebBean webBean)

  {

  super.processFormRequest (pageContext, webBean);

  Am = (OAApplicationModule) pageContext.getApplicationModule (webBean) OAApplicationModule;

  OAApplicationModule am = pageContext.getRootApplicationModule ();

  String model = pageContext.getParameter ("ALL");

  String pempno = pageContext.getParameter ("paramEmpNo");

  String phiredt = pageContext.getParameter ("paramHireDate");

  System.out.println ("control controller exucution");

  If (pageContext.getParameter ("GetData")! = null)

  {

  System.out.println ("controller exucution");

  Boolean ExecuteQuery = BooleanUtils.getBoolean (false);

  [Serializable] parameters = {pempno, phiredt, model, executeQuery};

  Class [] paramTypes = {String.class, String.class, String.class, Boolean.class};

  am.invokeMethod ("initSummary", parameters, paramTypes);

  OAAdvancedTableBean = table

  (OAAdvancedTableBean) webBean.findChildRecursive ("ResultsTable");

  When a user of handling started looking, we always need to run

  the query, so we move on 'false' to queryData().

  table.queryData (pageContext, false);

  }

  }

  ================================================================================

  -Request module file-

  ================================================================================

  public void initSummary (string model,

  String ParmEmpNum,

  String ParmHireDt,

  String created,

  String showMyOrders,

  Boolean ExecuteQuery)

  {

  xxEmployeeVOImpl vo = getxxEmployeeVO1();

  If (vo is nothing)

  {

  Tokens [] MessageToken = {new MessageToken ("parameter", "xxEmployeeVO")};

  throw new OAException ("AK", "FWK_TBX_OBJECT_NOT_FOUND", chips);

  }

  vo.initQuery (model, ParmEmpNum, ParmHireDt, executeQuery);

  System.out.println ("calling vo...");

  }

  ================================================================================

  -xxEmployeeVOImpl-

  ================================================================================

  public void initQuery (String, String ParamEmpNum, String ParmHireDt, Boolean executeQuery model)

  {

  StringBuffer whereClause = new StringBuffer (100);

  Whole CheckWhere;

  Vector of parameters = new Vector (3);

  setWhereClause (null);

  setWhereClauseParams (null);

  Integer bindCount = 0;

  String WhereClause = null;

  If ((ParamEmpNum! = null) & & (!("".)) Equals (ParamEmpNum.Trim ()))

  {

  setWhereClause (null);

  setWhereClauseParams (null);

  setWhereClause ("EMPLOYEE_NUMBER =:" + CheckWhere);

  setWhereClauseParam(0,ParamEmpNum);

  System.out.println ("request" + this.getQuery ());

  System.out.println ("ParamEmpNum" + ParamEmpNum);

  CheckWhere = CheckWhere ++;

  }

  If ((ParmHireDt! = null) & & (!("".)) Equals (ParmHireDt.Trim ()))

  {

  CheckWhere = CheckWhere ++;

  If (CheckWhere > 1)

  {

  setWhereClause (null);

  setWhereClauseParams (null);

  setWhereClause ("AND START_DATE =:" + CheckWhere);

  setWhereClauseParam(0,ParmHireDt);

  System.out.println ("request" + this.getQuery ());

  }

  on the other

  {

  {setWhereClause (null);

  setWhereClauseParams (null);

  setWhereClause ("START_DATE =:"+ CheckWhere ");

  setWhereClauseParam(0,ParmHireDt);

  System.out.println ("request" + this.getQuery ()) ;}

  }

  System.out.println ("ParamEmpNum" + ParmHireDt);

  }

  System.out.println ("request" + this.getQuery ());

  executeQuery();

  Try this:

  public void initQuery(String dummy,String ParamEmpNum,String ParmHireDt, Boolean executeQuery)
  {
    System.out.println("ParamEmpNum: "+ ParamEmpNum);
    System.out.println("ParmHireDt : "+ ParmHireDt);
  
    setWhereClause(null);
    setWhereClauseParams(null);
  
    String WhereClause = null;
  
    int bindCount = 0;
    HashMap paramMap = new HashMap();
  
    if  ( (ParamEmpNum != null) && (!("".equals(ParamEmpNum.trim())))  )
    {
    paramMap.put(bindCount,ParamEmpNum);
    WhereClause = "EMPLOYEE_NUMBER = :"+ (++bindCount) + " AND ";
    }
    if  ( (ParmHireDt != null) && (!("".equals(ParmHireDt.trim())))  )
    {
    paramMap.put(bindCount,ParmHireDt);
    WhereClause = WhereClause + ("START_DATE = :"+ (++bindCount) + " AND ");
    }
    if(bindCount > 0)
    {
    // Remove the AND at the end
    WhereClause = WhereClause.substring(0, WhereClause.length()-5);
  
    setWhereClause(WhereClause);
    for(int i = 0; i < bindCount; i ++) {
    setWhereClauseParam(i,paramMap.get(i));
    }
    }
  
    System.out.println("Query "+ this.getQuery());
    executeQuery();
  }
  

  You may need to change the START_DATE whereclause as below:

  WhereClause = WhereClause + ("START_DATE = TO_DATE (:" + (++ bindCount) + ', "MON-DD-YYYY" ") AND" ' ");

  Note:-need to specify the correct format.

  See you soon

  AJ

• Need help in the design of the structure of the table with the lines of the query

  Hello
  
  Need to design a page
  
  ex:
  
  Select empno, emp wage; is my query and returns two columns and four rows
  
  
  the four rows should be my values in the structure of the table.
  
  
  EmpNo - salary
  ---------------------
  1 - 1000
  -----------------------
  2 - 2000
  ------------------------
  3 - 3000
  ----------------------
  4 - 4000
  
  
  
  
  Kind regards
  
  Krishna

  Hello

  One of the ways is to create 2 RowLayouts dynamically like this

  Row1-> Cell1--> HeaderRegion--> StaticStyleText (EMPNO attribute)
  Row2-> Cell1--> StaticStyleText (EMPNO attribute) Cell2--> StaticStyleText (SALARYattribute)

  and iterate this code for all the lines of the vo.

  Kind regards
  Mukesh Uchaniya

• Control the Structure of the event with text file

  I'm new relativaly in LabVIEW (experience only about 2 weeks). I am currently control a stepper motor using a structure of the event. Similar to the sample code given by LIFA, I entered my settings how the engine not move away, then press a button on the windows before, and it works this way. I also have other equipment that works as well in LabVIEW, as a transnational step; all components operate individually.

  Now, I'm trying to make the more automated system and to ensure that all the different equipment work in the same code. So, I tried to implement a structure of the event using a text as an input file to try to control events. The text file has a table 1 d of numbers going down vertically (only the line numbers change). So, I used a table of index function to take the numbers one by one, use a loop (while loop in this example) to go to the bottom of the column of numbers. However, the event not register the change, even if the indicator shows the value is changing.

  Attached, it's my test code and the text file that I use to try to control the structure of the event. Please let me know what I am doing wrong. Thank you.

  Oh, now I understand what you tried to say. I'm using a loop and a case structure to activate different events with the entries in the table. I thought case structures and event were the same, but you taught me the event structures are used just for the façade stuff. Thank you all!

• How to manage the structure of the event with two loops

  I have a question about the structure of the user event with 2 buttons?

  key 1: START LOGGING DATA

  key 2: STOP LOGGING DATA

  How do I control my

  structure of the event so that it will work? because now that the loop is save data... I can't stop the loop, when I clicked on buttons.

  

  

  

  super_saiyans wrote:

  the problem with moving it is that I don't have control of the DATA RECORD STARTING?

  Of course, you do.  When you get your press conference button, you say your state machine to move to the State of logging.  You must also make sure that you return to visit the State to wait for the event to check out the events of the stop button.

• Instead of using the structure of the event with the producer consumer?

  I used the architecture of producer-consumer in the past to control a state machine with the structures of the event.  I'm working now with the basic version of LV that does not include the structure of the event.  Can anyone recommend alternatives to the use of the same architecture in this case?  Thank you, David

  Before the introduction of the structure of the event, the only option was the election.  Control terminals are in a time loop (the producer) with shift registers and a wait, usually about 100ms.  At each iteration of the loop, the control's current value is compared to the previous value.  If it has changed, and then take appropriate action.  Andrey suggested, queues are a good way to pass information between the loops.

  It works for the equivalent of the value change events.  Things like mouse to top or filter events were much more difficult or not possible.

  Lynn

• Structure of the event with value changes

  Hello, I had a problem with the use of a structure of the event. I want the values to change the table itself when the user changes the units, such as the flow rate 4 l / min = 240 l / h... It should appear in the same table. I've already got a code here, but it's quite confusing and does not

  Could you please help?  Thank you

  So that it doesn't?

  How it did not work?

  What you want it to do?

  What did do?

  We cannot read your mind, you must explain in detail.

• structure of the event with a local variable

  Hello world... I tried to make a simple program with the structure of the event in Labview.
  I need to show a value in a table, when an external signal changes its value. (I read a lot of discussions and many documents and I don't understand the thing... Sorry)
  I want to say that I am getting a value of temperature of a sensor in a controller, it works in asynchronous mode sensor, so that the detector Gets a new value in different sampling rate.
  So the PLC program changes the State of a Boolean variable simple that in Labview, indicates that there is new data (newdatareceived---> 1,0,1,0,1,0...)
  I need this draw Labview (valuereceived) value in a chart when this variable (newdatarecived) changes.
  My problem is that the table always puts a value according to the cycle time in its loop and resumes the values... (I tried, with dynamic events and signage value... and I got the same result... It works fine).
  Thanks in advance.

  And the other way:

  

  Thanks for your time again.

  STPG wrote:

  I've been doing a little test with xygraph and the example works now (thanks!) but I have a doubt, is this the right way or is there a better way?

  No, this code is meaningless. You write new (mostly the same!) points to the graph xy with each iteration (actually at twice the speed at which data can actually happen: 100 ms vs 200ms!), tax system unecessarily and more internal data structures like crazy.

  All you need is a simple loop with a single structure of matter which is true if the Boolean value is different from the previous iteration. Currently, you must add a point (the time for X, the value in Y) to the xy graph. Here is a quick sketch. (You can either use the meter or the elapsed time for X, according to your needs, so change if necessary).

  Events are mainly for the interaction with the user in order to avoid the loop turn unless necessary. Here you are already running a loop to interrogate the instrument and you can easily have the graphic way the same loop. Right?

  You should also be aware that the execution order is determined by the flow of data and not in a horizontal position. If it's important that OCX nodes running first in an iteration, you create a dependency of data (for example with the wire of the error). Horizontal compensation has no effect. The structure of sequence on the left has also does no work, then why is it there?

• Can I use Ctlref in a structure of the event with a mouse to an event?

  I have a large number of controls on a front panel. I use a structure of the event that triggers the movement of a given motor when you press the corresponding button. However, I would like to avoid creating events for identical most of N, so I relied on the use of a mouse down on the front panel event, then retrieve the reference command using the Ctlref node (with gives 'Reference to the control on which the event occurred', according to manual labview) and analyze an array of references to know which engine is supposed to move. However, it seems that this node is not (contrary to what the manual said).

  I found other ways to do what I need (I thought using a table containing details of my controls and the coords in the structure of the event node), but I wanted to know why I can't find this node (that is displayed for the event "value change" for example). I'm using Labview 2013.

  No luck for you. Mouse down on the Panel does not have the refnum control because it does not work on a control. Mouse down on a control has it, and since you can configure the mouse down events on multiple controls in the same case of event, it also provides a refnum of control so that you can still use the order in question.

  This is probably also the question that Jeff might have seen. When you set up multiple events for the same frame that LabVIEW displays only the terminal event that are present in all of these events. Terminals that do not exist in at least a specific event of the multiple events for this image are more selectable.

• Structure of the matter and structure of the event with a condition of the indicator (boolean)

  Hello

  I read a lot of posts but I can't solve my problem. I would like to set up a business structure and the structure of the event, and the condition to run the code inside is a Boolean indicator, in this case called Wahnelt (screenshot). I know I should use signal value, but I don't know how to implement. Here is the program:

  

  Any help will be more thankful

  a state machine with timer elapsed...

• Structure of the event with gray and disabled controls

  I'm working on a data acquisition program that uses the structure of the event to manage the graphic user interface.  I have a 'start logging' button that raises an event when the value changes and starts to collect data.  While collecting data, the program disables and gray on all controls on the front panel except the button "stop logging" that ends a while loop with in the event of data logging.  If this event is active only when you press "stop recording."  There are other events that are triggered by a mouse up/down, action others controls disabled on the front panel.  The problem is that, while the program collect data if you click on one controls disabled and gray that has a mouse up/down, event, the program seems to hang and will not push the button ' stop logging.  I don't know if his attempts to run another event, but he continues to logging data, I just can't stop it.  I have to use the Cancel button to stop the program.

  The real problem is that a control, even when disabled and grayed out, can still trigger a mouse to the high-low event - controlled, it true?  Also, what happens if an event is raised during execution, another event my understanding was that a single event can run at a time.

  Thank you

  Doug

  Doug,

  By reading between the lines, here a bit...  Looks like you have your data collection and logging code in the box to Start Logging event.  If so, this is part of the problem.  No other case of event cannot run until this one is over.  Move data collection and the registration code to a parallel loop.  Have this loop to sit in an inactive state until you press the Start Logging button.  Then, in case for the button change send a command via a queue to the loop of logging and out the case of the event.  The event loop is then immediately ready to respond to the next event.

  Generally the code within a case of event should run quickly, no more than 10s of milliseconds for maybe 100 ms to avoid slow response to another event.

  Look at the producer/consumer (events) design pattern which comes with LV for an example.

  Lynn