Implementation of pagination for the result set [was: I tried a lot of things.. ghoulish any body help?]

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• Remove duplicates from the result set

  Here's a challenge question that I was playing with a my free time during the work.
  
  I assume you have the basic HR example somewhere around (I hope is not in production).
  
  Let's say you want to get employees from the employees table whose name is similar to another employee last name.
  The easiest way is to join the two tables with a join condition that checks for the name and employee id. Here's what I came with.
  
  *************
  
  Select e1.last_name, e1.first_name b, e2.last_name c, e2.first_name d
  employees employees join e1 e2
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  ************
  
  The above query returns 10 rows. The first and the second are essentially the same. It is similarly, 3 & 4, 5 & 6, 7 and 8 and 9 and 10. The question is: is there a way that allows me to get rid of using only sql duplicate rows from the result set of this query. I sat on it for 15 minutes and I couldn't know. I'll try to watch my completed work once again.

  Example:

  SQL> column a format a10
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• Help with the query to select only one record from the result set in double

  Hello

  Please help with the query. Version of Oracle database we use is 10g R2.

  I have a vision that is duplicated IDS, but they are used across the different functions. See below examples of data. Please help me with a query to select only one record (based on ID regardless of the area) from the bottom of the result set of duplicate records. For what is the point of view is there unique records, given the combination of the fields ID, Org, DF, dry, Sub-Sec

  ID	Org	DF	Sec	Sub-Sec

  
  (163)CQCPDMCPDMHD(163)PCENGENGENG(163)CQASICASICIS8888TSTACTACTAC(163)TSHEHESW6789CQINFOINFOFOS6789PCSECSYSSECSYSINFO16789TSSECSYSSECSYSINFO29009PCBMSBMSBMS1

  My result set must eliminate the duplicate identifiers regardless of whoever we choose of the result set. (I mean without distinction Org, DF, s, Sub-s). My expected result set should be.

  ID	DSB

  
  DF
  SEC
  Sub-Sec
  (163)CQCPDMCPDMHD8888TSTACTACTAC6789CQINFOINFOFOS9009PCBMSBMSBMS1

  
  

  Thank you

  Orton
  

  Hello

  This sounds like a job for ROW_NUMBER:

  WITH got_r_num AS

  (

  SELECT id, DSB, df, s, sub_sec org

  ROW_NUMBER () OVER (PARTITION BY ID.

  ORDER BY org

  ) AS r_num

  OF view_x

  )

  SELECT id, DSB, df, sub_sec s,

  OF got_r_num

  WHERE r_num = 1

  ;

  He is a Top - N query example, where you choose the elements of N (N = 1 in this case) from the top of an ordered list.

  I hope that answers your question.
  If not, post a small example of data (CREATE TABLE and INSERT, only relevant columns instructions) to your sample data and the results desired from these data.  (I know that you said that you were a view selection.  Just for this thread, pretending it is a picture and post simple CREATE TABLE and INSERT statements to simulate your point of view).
  Point where the above query is to produce erroneous results, and explain, using specific examples, how you get the right results from data provided in these places.  (I didn't quite understand the explanation above.  I don't know why you want to

  ID ORG DF DRY SUB_SEC

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

  1234 CQ DPRK DPRK HD

  and is not

  1234 IS CQ ASIC, ASIC

  or

  TS 1234 IT IT SW

  or

  1234 CQ ASIC ASIC HD

  )
  If you change the query at all, post your modified version.
  Always say what version of Oracle you are using (for example, 11.2.0.2.0).

  See the FAQ forum: https://forums.oracle.com/message/9362002

• AF:inputListOfValues sets the value of the first item in the result set when using enter key or tab and component value autosubmit = true

  I use JDev 11.1.1.6 and when I type in a value in an af:inputListOfValues element and press enter or the tab key, it will replace the value I entered with the first element in the set of results LOV. If enter a value, simply click on the component af:inputListOfValues it works correctly. If I use the popup and find a value it works properly as well. I have a programmatic view object that contains a single transitional attribute (this is the view object that is used to create the list of the components of the value of) and then I have another object from view based on entities which defines one of its attributes in a list of the attribute value. I tried to use a base object view of entity to create the LOV to and everything works as expected, so I don't know if this is a bug when using programmatic view objects or if I need more code in the VOImpl. In addition, it seems after that first of the value being replaced by the first value in the result set that it will work correctly as well. Here are some excerpts of important code.

  Also, it seems that this does not work only if the text entered in the component af:inputListOfValues would have only a single game, returned in the result set. For example, given the result defined in code: Brad, Adam, Aaron, Fred, Charles, Charlie, Jimmy

  If we get into Cha, the component works as expected

  If we register A, the component works as expected

  If we get Jimmy, the component does not work as expected, and returns the first value of results IE. Brad

  If we get Fred, the component does not work as expected, and returns the first value of results IE. Brad

  I also checked that I get the same behavior in JDev 11.1.1.7

  UsersVOImpl (programmatic view with 1 transitional attribute object)

  import java.sql.ResultSet;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  
  import oracle.adf.share.logging.ADFLogger;
  
  import oracle.jbo.JboException;
  import oracle.jbo.server.ViewObjectImpl;
  import oracle.jbo.server.ViewRowImpl;
  import oracle.jbo.server.ViewRowSetImpl;
  
  // ---------------------------------------------------------------------
  // ---    File generated by Oracle ADF Business Components Design Time.
  // ---    Wed Sep 18 15:59:44 CDT 2013
  // ---    Custom code may be added to this class.
  // ---    Warning: Do not modify method signatures of generated methods.
  // ---------------------------------------------------------------------
  
  public class UsersVOImpl extends ViewObjectImpl {
  
      private static ADFLogger LOGGER = ADFLogger.createADFLogger(UsersVOImpl.class);
      private long hitCount = 0;
  
      /**
       * This is the default constructor (do not remove).
       */
      public UsersVOImpl () {
      }
  
      /**
       * executeQueryForCollection - overridden for custom java data source support.
       */
      protected void executeQueryForCollection (Object qc, Object[] params, int noUserParams) {
  
           List<String> usersList = new ArrayList<String>();
           usersList.add("Brad");
           usersList.add("Adam");
           usersList.add("Aaron");
           usersList.add("Fred");
           usersList.add("Charles");
           usersList.add("Charlie");
           usersList.add("Jimmy");
  
           Iterator usersIterator = usersList.iterator();
           setUserDataForCollection(qc, usersIterator);
           hitCount = usersList.size();
           super.executeQueryForCollection(qc, params, noUserParams);
  
      } // end executeQueryForCollection
  
      /**
       * hasNextForCollection - overridden for custom java data source support.
       */
      protected boolean hasNextForCollection (Object qc) {
  
           Iterator usersListIterator = (Iterator)getUserDataForCollection(qc);
           if (usersListIterator.hasNext()) {
       
               return true;
  
           } else {
  
               setFetchCompleteForCollection(qc, true);
               return false;
  
           } // end if
  
      } // end hasNextForCollection
  
      /**
       * createRowFromResultSet - overridden for custom java data source support.
       */
      protected ViewRowImpl createRowFromResultSet (Object qc, ResultSet resultSet) {
  
           Iterator usersListIterator = (Iterator)getUserDataForCollection(qc);
           String user = (String)usersListIterator.next();
           ViewRowImpl viewRowImpl = createNewRowForCollection(qc);
  
           try {
  
               populateAttributeForRow(viewRowImpl, 0, user.toString());
  
           } catch (Exception e) {
  
               LOGGER.severe("Error Initializing Data", e);
               throw new JboException(e);
  
           } // end try/catch
  
           return viewRowImpl;
  
      } // end createRowFromResultSet
  
      /**
       * getQueryHitCount - overridden for custom java data source support.
       */
      public long getQueryHitCount (ViewRowSetImpl viewRowSet) {
           return hitCount;
      } // end getQueryHitCount
  
      @Override
      protected void create () {
  
           getViewDef().setQuery(null);
           getViewDef().setSelectClause(null);
           setQuery(null);
  
      } // end create
  
      @Override
      protected void releaseUserDataForCollection (Object qc, Object rs) {
  
           Iterator usersListIterator = (Iterator)getUserDataForCollection(qc);
           usersListIterator = null;
           super.releaseUserDataForCollection(qc, rs);
  
      } // end releaseUserDataForCollection
  
  } // end class
  
  

  <af:inputListOfValues id="userName" popupTitle="Search and Select: #{bindings.UserName.hints.label}" value="#{bindings.UserName.inputValue}"
                                                label="#{bindings.UserName.hints.label}" model="#{bindings.UserName.listOfValuesModel}" required="#{bindings.UserName.hints.mandatory}"
                                                columns="#{bindings.UserName.hints.displayWidth}" shortDesc="#{bindings.UserName.hints.tooltip}" autoSubmit="true"
                                                searchDesc="#{bindings.UserName.hints.tooltip}"                                           
                                                simple="true">
                            <f:validator binding="#{bindings.UserName.validator}"/>                       
  </af:inputListOfValues>
  
  
  
  

  I found a solution to this problem. It seems that, when using a view object programmatic that has a transient as its primary key attribute, you need to override the methods in the ViewObjectImpl so that he knows how to locate the line related to the primary key when the view object records are not in the cache. That's why it would work properly sometimes, but not always. Here are the additional methods that you must override. The logic you use in the retrieveByKey would be on a view view object database object and would be different if you had a primary key consisting of multiple attributes.

  @Override
  protected Row[] retrieveByKey (ViewRowSetImpl viewRowSetImpl, Key key, int i) {
      return retrieveByKey(viewRowSetImpl, null, key, i, false);
  }
  
  @Override
  protected Row[] retrieveByKey (ViewRowSetImpl viewRowSetImpl, String string, Key key, int i, boolean b) {
  
      RowSetIterator usersRowSetIterator = this.createRowSet(null);
      Row[] userRows = usersRowSetIterator.getFilteredRows("UserId", key.getAttribute(this.getAttributeIndexOf("UserId")));
      usersRowSetIterator.closeRowSetIterator();
      return userRows;
  
  }
  
  @Override
  protected Row[] retrieveByKey (ViewRowSetImpl viewRowSetImpl, Key key, int i, boolean b) {
      return retrieveByKey(viewRowSetImpl, null, key, i, b);
  }
  

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  Srinivas

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  Hello
  
  I have a following code:
  
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  create or replace PROCEDURE GetAllCategories (p_cursor in the Types.cursorType)
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  Thanks in advance for any help.
  
  Published by: CarbonFiber Sep 22, 2008 20:52

  Is a simple way with sqlplus

  SQL> create or replace package types
    2  as
    3     type cursortype is ref cursor;
    4  end;
    5  /
  
  Package created.
  
  SQL> create or replace procedure getallemp(p_cursor in out types.cursortype )
    2  as
    3  begin
    4     open p_cursor for select * from emp;
    5  end;
    6  /
  
  Procedure created.
  
  SQL> var lcursor refcursor
  SQL>
  SQL> exec getallemp(:lcursor)
  
  PL/SQL procedure successfully completed.
  
  SQL> print lcursor
  
       EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO        DIV
  ---------- ---------- --------- ---------- --------- ---------- ---------- ---------- ----------
        7369 SMITH      CLERK           7902 17-DEC-80        800                    20         10
        7499 ALLEN      SALESMAN        7698 20-FEB-81       1600        300         30         10
        7521 WARD       SALESMAN        7698 22-FEB-81       1250        500         30         10
        7566 JONES      MANAGER         7839 02-APR-81       2975                    20         10
        7654 MARTIN     SALESMAN        7698 28-SEP-81       1250       1400         30         10
        7698 BLAKE      MANAGER         7839 01-MAY-81       2850                    30         10
        7782 CLARK      MANAGER         7839 09-JUN-81       2450                    10         10
        7788 SCOTT      ANALYST         7566 19-APR-87       3000                    20         10
        7839 KING       PRESIDENT            17-NOV-81       5000                    10         10
        7844 TURNER     SALESMAN        7698 08-SEP-81       1500          0         30         10
        7876 ADAMS      CLERK           7788 23-MAY-87       1100                    20         10
  
       EMPNO ENAME      JOB              MGR HIREDATE         SAL       COMM     DEPTNO        DIV
  ---------- ---------- --------- ---------- --------- ---------- ---------- ---------- ----------
        7900 JAMES      CLERK           7698 03-DEC-81        950                    30         10
        7902 FORD       ANALYST         7566 03-DEC-81       3000                    20         10
        7934 MILLER     CLERK           7782 23-JAN-82       1300                    10         10
  
  14 rows selected.
  

  Thank you
  Knani.

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  Hello
  I use forms 6i and db 10.2.0.1.0
  
  With the query below

  Select ufam_usrgrp,ufam_filegrp,ufam_read,ufam_write,ufam_overwrite,ufam_delete from usr_file_access_master
  Where ufam_ecode = '0004108';

  the result set is

  UFAM_USRGRP     UFAM_FILEGRP    UFA UFA UFA UFA
  --------------- --------------- --- --- --- ---
  MGMNT           CV              Y   Y   Y   Y
  EMPLOYEE        GENERAL         Y   N   N   N
  EMPLOYEE        PERSONAL        Y   N   N   N

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  UUL_USRGRP      UFL_FILE_GRP    UFL UFL UFL UFL
  --------------- --------------- --- --- --- ---
  MGMNT           GENERAL         Y   Y   Y   Y
  EMPLOYEE        GENERAL         Y   Y   N   N
  MGMNT           CV              Y   N   N   N

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  Like here "MGMNT CV" is repeated in both the result set, but the first has more, then it should come from the combined result set. reverse-case also the same (such as "EMPLOYEE GENERAL")
  
  So I want to combine the queries so that I get the result as set below

  UserGroup       FileGroup       Rd Wrt Owrt Del
  --------------- --------------- --- --- --- ---
  MGMNT           GENERAL         Y   Y   Y   Y
  EMPLOYEE        GENERAL         Y   Y   N   N
  MGMNT           CV              Y   Y   Y   Y
  EMPLOYEE        PERSONAL        Y   N   N   N

  Please help me to combine these queries
  
  Published by: Divya on August 14, 2011 21:24
  Changed the result set and the last exit

  NOT TESTED!

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         greatest(ufl_write,nvl(ufam_write,' ')) ufl_write,
         greatest(ufl_overwrite,nvl(ufam_overwrite,' ')) ufl_overwrite,
         greatest(ufl_delete,nvl(ufam_delete,' ')) ufl_delete
    from (select ufam_usrgrp,ufam_filegrp,ufam_read,ufam_write,ufam_overwrite,ufam_delete
            from usr_file_access_master
           Where ufam_ecode = '0004108'
         ) x,
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            from usr_usrgrp_lnk,USRGRP_FILEGRP_LINK
           Where usr_usrgrp_lnk.uul_usrgrp = USRGRP_FILEGRP_LINK.UFL_USR_GRP
             and usr_usrgrp_lnk.uul_ecode = '0004108'
         ) y
   where y.uul_usrgrp = x.ufam_usrgrp(+)
     and y.ufl_file_grp = x.ufam_filegrp(+)
  

  Concerning

  Etbin

  Edited by: Etbin on 14.8.2011 13:08
  deleted by group

• How to exclude the each row of the result set XML declaration?

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