How to "discard" a row from a view

It seems to me like a simple thing, but I can't find an answer:
I want to programmatically remove a row from an executed view's rowset, but I don't want the underlying entities removed?
[I don't want any pending updates to the entities affected either. It's basically a UI thing - the user does something and I want to make the current row vanish. I don't need or want to re-execute or alter the database as a result of this particular removal.]
Anyone know of a vo.removeRowWithoutAffectingEntities method?
Thanks,
Mike.

Found an old thread myself.
How to remove a row from a rowset
Will have to give this "hack" a try, I guess. (Sung, has this API been introduced into an unreleased version yet?)
I had already tried overriding the updateable-entities' remove methods (which are called from row.remove()), but it seems that the view-row hangs around if the entities aren't actually removed. Found some "removeEntityReferences (i.e. set them to null)" method on a QueryCollection and was wondering if calling that followed by a row.remove() might do the trick, but the method's protected anyway. Might still see if I can call it somehow. Any comments on the viability of this, Sung? (Given that the previous work-around was "uncharted territory"....)
Anyway, I guess I'll give the original work-around a shot. (Or make application non-ideally commit and requery!)
Mike.

Similar Messages

How to delete certain rows from Table view

Hi Experts,
I need to display result on the basis of certain process type. So i have used code like below.
       lv_iterator =   me->typed_context->searchresult->collection_wrapper->get_iterator( ).
       lv_entity = lv_iterator->get_first( ).
       WHILE lv_entity IS BOUND.
         CLEAR:lv_object.
         lv_object = lv_entity->get_property_as_string( iv_attr_name = 'PROCESS_TYPE' ).
         IF lv_object <> 'XXX'.
           lr_entity ?= lv_entity.
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
         ENDIF.
         lv_entity = lv_iterator->get_next( ).
       ENDWHILE.
But only some of the entities from the collection are getting removed. Still some wrong entities exists which i cant even able to delete it by using ,
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
Am i missing anything here?
Regards,
Santhosh

Hi Santhosh,
Maybe that is happening because you're removing elements from an object (collection_wrapper) inside your loop.
Can you try to create an collection wrapper copy by using GET_COPY method, and then use and loop the iterator on your copied object, and remove the unwanted entities on your main object?
Kind regards,
Garcia

How to Delete certain rows from table view collection

Hi Experts,
I need to display result on the basis of certain process type. So i have used code like below.
       lv_iterator =   me->typed_context->searchresult->collection_wrapper->get_iterator( ).
       lv_entity = lv_iterator->get_first( ).
       WHILE lv_entity IS BOUND.
         CLEAR:lv_object.
         lv_object = lv_entity->get_property_as_string( iv_attr_name = 'PROCESS_TYPE' ).
         IF lv_object <> 'XXX'.
           lr_entity ?= lv_entity.
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
         ENDIF.
         lv_entity = lv_iterator->get_next( ).
       ENDWHILE.
But only some of the entities from the collection are getting removed. Still some wrong entities exists which i cant even able to delete it by using ,
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
Am i missing anything here?
Regards,
Santhosh

Hi Santhosh,
Maybe that is happening because you're removing elements from an object (collection_wrapper) inside your loop.
Can you try to create an collection wrapper copy by using GET_COPY method, and then use and loop the iterator on your copied object, and remove the unwanted entities on your main object?
Kind regards,
Garcia

HOW TO GET THE SELECTED VALUE IN A ROW FROM ONE VIEW TO ANOTHER VIEW?

hi all,
I have a small issue.
i have created two views.In the table of the first view i'm selecting a row and pressing the button it will move to next view.
i am adding some fields manually in the table of the second view and pressing the save button.Here all the values should get updated corresponding to the field which i have selected in the first view.
I want to know how to get the particular field in the selected row from one view to another view.
Kindly help me.

Hi,
Any data sharing accross views can be achiveved by defining CONTEXT data in COMPONENT CONTROLLER and mapping it to the CONTEXT of all the views. Follow the below steps.
1. Define a CONTEXT NODE in component controller
2. Define same CONTEXT NODE in all the views where this has to be accessed & changed.
3. Go to CONTEXT NODE of each view, right click on the node and choose DEFINE MAPPING.
This is how you map CONTEXT NODE and same can be accessed/changed from any VIEW or even from COMPONENT CONTROLLER. Any change happens at one VIEW will be automatically available in others.
Check the below link for more info regarding same.
[http://help.sap.com/saphelp_nw04s/helpdata/EN/48/444941db42f423e10000000a155106/content.htm]
Regards,
Manne.

How To Delete a row from view object

Hi
I have a table whose data is populated based on the view object... and for each row i have a delete icon...
when i press on this delete icon i want to delete that particular row from the view object only..but not from the data
base..please help me in this issue
Thanks

Hi,
as per krishna priya says u can delete .
-----1st one thing let me know vo is eo based .???.
If not here is the sample code to delete a row not from the data base.:
public void Deleterow(OAPageContext pageContext, OAWebBean webBean,String prjid)
int idtodelete;
int fetchedrowcount;
Number prjojectid;
RowSetIterator deleteIter;
prjidtodelete=Integer.parseInt(prjid);
OADBTransaction tr = getOADBTransaction();
ProjectsVORowImpl row=null;
ProjectsVOImpl vo= getProjectsVO1();
fetchedrowcount=vo.getRowCount();
deleteIter = vo.createRowSetIterator("deleteIter");
deleteIter.setRangeStart(0);
deleteIter.setRangeSize(fetchedrowcount);
for(int i=0;i<fetchedrowcount;i++)
row= (ProjectsVORowImpl)deleteIter.getRowAtRangeIndex(i);
prjojectid=(Number)row.getAttribute("ProjectId");
if (prjojectid.compareTo(prjidtodelete)==0)
row.remove();
break;
deleteIter.closeRowSetIterator();
Regards
Meher Irk
Edited by: Meher Irk on Nov 2, 2010 12:42 AM

How to delete multiple rows from ADF table

How to delete multiple rows from ADF table

Hi,
best practices when deleting multiple rows is to do this on the business service, not the view layer for performance reasons. When you selected the rows to delete and press submit, then in a managed bean you access thetable instance (put a reference to a managed bean from the table "binding" property") and call getSeletedRowKeys. In JDeveloper 11g, ADF Faces returns the RowKeySet as a Set of List, where each list conatins the server side row key (e.g. oracle.jbo.Key) if you use ADF BC. Then you create a List (ArrayList) with this keys in it and call a method exposed on the business service (through a method activity in ADF) and pass the list as an argument. On the server side you then access the View Object that holds the data and find the row to delte by the keys in the list
Example 134 here: http://blogs.oracle.com/smuenchadf/examples/#134 provides you with the code
Frank

How to distinguish individual rows in a view?

As well known, we can use rowid to distinguish individual rows in a table. However, who know how to distinguish individual rows in a view? For there are not rowid in a view.

I'm not sure I usnderstand your question, or at least I hope I don't.
We do not use ROWID to distinguish rows in a table: we use unique iodentifiers, that is primary keys. A primary key is stable across the lifetime of a record: a rowid is guaranteed only for the lifetime of a transaction, and then only if we have locked that row.
From this it follows, we should so design our views that each row in the view has a column, or combination of columns, that uniquely identify it.
Cheers, APC

When selecting a row from a view with a nested table I want just ONE entry returned

Does a nested table in a view "EXPLODE" all values ALWAYS no matter the where clause for the nested table?
I want to select ONE row from a view that has columns defined as TYPE which are PL/SQL TABLES OF other tables.
when I specify a WHERE clause for my query it gives me the column "EXPLODED" with the values that mathc my WHERE clause at the end of the select.
I dont want the "EXPLODED" nested table to show just the entry that matches my WHERE clause. Here is some more info:
My select statement:
SQL> select * from si_a31_per_vw v, TABLE(v.current_allergies) a where a.alg_seq
=75;
AAAHQPAAMAAAAfxAAA N00000 771 223774444 20 GREGG
CADILLAC 12-MAY-69 M R3
NON DENOMINATIONAL N STAFF USMC N
U
E06 11-JUN-02 H N
05-JAN-00 Y Y
USS SPAWAR
353535 USS SPAWAR
SI_ADDRESS_TYPE(NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NUL
L, NULL)
SI_ADDRESS_TAB()
SI_ALLERGY_TAB(SI_ALLERGY_TYPE(69, 'PENICILLIN', '11-JUN-02', NULL), SI_ALLERGY
TYPE(74, 'SHELLFISH', '12-JUN-02', NULL), SIALLERGY_TYPE(68, 'PEANUTS', '13-J
UN-02', NULL), SI_ALLERGY_TYPE(75, 'STRAWBERRIES', '13-JUN-02', NULL))
SI_ALLERGY_TAB()
75 STRAWBERRIES 13-JUN-02
*******Notice the allergy entry of 75, Strawberries, 13-JUN-02 at the
end. This is what I want not all the other exploded data.
SQL> desc si_a31_per_vw
Name Null? Type
........ Omitted uneeded previous column desc because of metalink
character limit but the view is bigger then this.......
DEPT_NAME VARCHAR2(20)
DIV_NAME VARCHAR2(20)
ADDRESSES SI_ADDRESS_TAB
CURRENT_ALLERGIES SI_ALLERGY_TAB
DELETED_ALLERGIES SI_ALLERGY_TAB
SQL> desc si_allergy_tab
si_allergy_tab TABLE OF SI_ALLERGY_TYPE
Name Null? Type
ALG_SEQ NUMBER
ALG_NAME VARCHAR2(50)
START_DATE DATE
STOP_DATE DATE
SQL> desc si_allergy_type
Name Null? Type
ALG_SEQ NUMBER
ALG_NAME VARCHAR2(50)
START_DATE DATE
STOP_DATE DATE

Can you explain what do you mean by the following?
"PL/SQL tables (a.k.a. Index-by tables) cannot be used as the basis for columns and/or attributes"There are three kinds of collections:
(NTB) Nested Tables
(VAR) Varrying Arrays
(IBT) Index-by Tables (the collection formerly known as "PL/SQL tables")
NTB (and VAR) can be defined as persistent user defined data types, and can be used in table DDL (columns) and other user defined type specifications (attributes).
SQL> CREATE TYPE my_ntb AS TABLE OF INTEGER;
SQL> CREATE TABLE my_table ( id INTEGER PRIMARY KEY, ints my_ntb );
SQL> CREATE TYPE my_object AS OBJECT ( id INTEGER, ints my_ntb );
/IBT are declared inside stored procedures only and have slightly different syntax from NTB. Only variables in stored procedures can be based on IBT declarations.
CREATE PROCEDURE my_proc IS
   TYPE my_ibt IS TABLE OF INTEGER INDEX BY BINARY_INTEGER; -- now you see why they are called Index-by Tables
   my_ibt_var my_ibt;
BEGIN
   NULL;
END;That sums up the significant differences as it relates to how they are declared and where they can be referenced.
How are they the same?
NTB and VAR can also be (non-persistently) declared in stored procedures like IBTs.
Why would you then ever use IBTs?
IBTs are significantly easier to work with, since you don't have to instantiate or extend them as you do with NTB and VAR, or
Many other highly valuable PL/SQL programs make use of them, so you have to keep your code integrated/consistent.
There's a lot more to be said, but I think this answers the question posed by Sri.
Michael

How To Delete a Row From a TableView !!!!

Hi,
Does any know how to delete a row from a table view model.
I have a TableViewModel being displayed, when the user select the particular row and click delete i want that particular row to be deleted.
Any Suggestions How.
Thanks,
Emmanuel.

If u want to delete single row, then set the property of TableView - selectionMode="SINGLESELECT". Select the radio button and click on delete button. In the main program, you can get the row value like...
public void onDeleteButtonClicked(Event event) throws PageException {
TableView table = (TableView) this.getComponentByName ("idTableView");
DefaultTableViewModel dmodel = myBean.beanModel;
String pid = "", row_selected;
// Get the first visible row
int firstVisibleRow = table.getVisibleFirstRow();
// Get the last visible row
int lastVisibleRow = table.getVisibleLastRow();
for (int i = firstVisibleRow; i <= lastVisibleRow; i++) {
if (table.isRowSelected(i)) {
row_selected = i;
pid = dmodel.getValueAt(i, 1).toString();
"i" will give you the row no, pid has the value of the row at first column.
Hope this helps.
Thanks,
Praveen

Passing Multiple table row from one view to another view

Hi,
How to Passing Multiple table row from one view to another view in Web Dynpro Abap. (Table UI Element)
thanx....

Hi Ganesh,
Kindly do search before posting.. this discussed many times..
First create your context in component controller, and do context mapping in two views so that you can get values from
one veiw to any views.
and for multiple selection, for table we have property selection mode.. set as multi and remember context node selection
selection cardinality shoud be 0-n.
so, select n no of rows and based on some action call sec view and display data.( i think you know navigation between veiw ).
Pelase check this...for multi selection
Re: How to copy data from one node to another or fromone table to another table
for navigation.. check
navigation between the views
Cheers,
Kris.

How to update duplicate row from table

Hi,
how to update duplicate row from table?
First to find duplicate row then update duplicate row with no to that duplicate row in oracle.
can you give me suggestion on it?
Thanks in advance.
your early response is appreciated...

In order to find a duplicate row, see:
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:1224636375004
(or search this forum, your question has been asked before)
In order to update it, just create and use an Oracle sequence, have it start and increment at a value that doesn't exist in your table.
If that doesn't get you going, post some CREATE TABLE + INSERT INTO statements, and the results you want from them, in other words: a complete testcase.

How to compare two rows from two table with different data

how to compare two rows from two table with different data
e.g.
Table 1
ID   DESC
1     aaa
2     bbb
3     ccc
Table 2
ID   DESC
1     aaa
2     xxx
3     ccc
Result
2

Create
table tab1(ID
int ,DE char(10))
Create
table tab2(ID
int ,DE char(10))
Insert
into tab1 Values
(1,'aaa')
Insert
into tab1 Values
(2,'bbb')
Insert
into tab1 Values(3,'ccc')
Insert
into tab1 Values(4,'dfe')
Insert
into tab2 Values
(1,'aaa')
Insert
into tab2 Values
(2,'xx')
Insert
into tab2 Values(3,'ccc')
Insert
into tab2 Values(6,'wdr')
SELECT
tab1.ID,tab2.ID
As T2 from tab1
FULL
join tab2 on tab1.ID
= tab2.ID
WHERE
BINARY_CHECKSUM(tab1.ID,tab1.DE)
<> BINARY_CHECKSUM(tab2.ID,tab2.DE)
OR tab1.ID
IS NULL
OR
tab2.ID IS
NULL
ID column considered as a primary Key
Apart from different record,Above query populate missing record in both tables.
Result Set
ID ID
2 2
4 NULL
NULL 6
ganeshk

How i will retrive rows from object type

test is object type(varchar2,varchar2)
test1 is a object derived from test
test1(varchar2,varchar2,test);
how i will retrive rows from test1.
declare
type recf is ref cursor;
v_tab test1 := test1('a','b',test('c','d'));
rec recf;
begin
open rec for
select * from table(cast(v_tab as test1));
dbms_output.put_line('the rows are'||rec.test1.test11);
end;
when i compile this it return
ERROR at line 7:
ORA-06550: line 7, column 35:
PL/SQL: ORA-22907: invalid CAST to a type that is not a nested table or VARRAY
ORA-06550: line 7, column 1:
PL/SQL: SQL Statement ignored
ORA-06550: line 8, column 48:
PLS-00487: Invalid reference to variable 'REC'
ORA-06550: line 8, column 1:
PL/SQL: Statement ignored
error.

hi ur previous example really helping me but please help me in this current senario,
PROCEDURE reserveNumbers (
     TheNumberRange IN NumberRange,
     UserID IN userid,
     ReturnStatus OUT CallStatus ); which is in P_Numbermgr_Api package.
here NumberRange is a object
TYPE NumberRange IS OBJECT (
     StartNumber               VARCHAR2(40),
     EndNumber               VARCHAR2(40),
     NumberAttributes          NumberAttr)
NumberAttributes field based on NumberAttr object
TYPE NumberAttr IS OBJECT (
     NumberType          VARCHAR2(15),
     CountryCode          VARCHAR2(10),
     CityCode      VARCHAR2(3))
i write a package within package i am calling P_Numbermgr_Api.reserveNumbers:
CREATE or replace TYPE My_numberrange IS TABLE OF numberrange;
CREATE OR REPLACE PACKAGE numberrange_wrapper AS
TYPE cursor_type IS REF CURSOR;
TYPE cursor_type1 IS REF CURSOR;
TYPE cursor_type2 IS REF CURSOR;
v_userid number;
PROCEDURE Getnumberrange (userid IN number,
p_recordset OUT numberrange_wrapper.cursor_type);
END numberrange_wrapper;
within package body i write
CREATE OR REPLACE PACKAGE body numberrange_wrapper AS
PROCEDURE Getnumberrange (userid IN number,p_recordset IN OUT numberrange_wrapper.cursor_type)
is
v_tab My_numberrange := My_numberrange();
refc numberrange_wrapper.cursor_type2;
BEGIN
numberrange_wrapper.v_userid:= userid;
OPEN p_recordset FOR
SELECT
     * FROM
     Table(Cast(v_tab As My_numberrange));
P_Numbermgr_Api.reserveNumbers (My_numberrange,v_userid,p_recordset);
END Getnumberrange;
end numberrange_wrapper;
it return
PLS-00330: invalid use of type name or subtype name
please help me how i will solve this problem

How to get first row from View Object cache.

hi,
I am using Jdeveloper 11.1.1.6
can we get first row from View Object cache??
Thanks in Advance.
Best
Shashidhar

Hi Frank,
Thanks for reply!!
My case is:
I have a Query based ViewObject.
One of the field is LOV and remaining fields are in ADF table. the LOV field is out side ADF table when i insert first record in ADF table and i choose LOV filed the value is selected.
when i create second row LOV value got refreshed because both are in same VO.
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Shashidhar

How to get first row from view iterator programatically?

Hi All,
I am using Jdeveloper 11g Release 2.
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Any help will be highly appreciated.
Thanks ... Best Regards
Bilal

Use the code snippet as below:
*// 1. Access the binding container*
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How to "discard" a row from a view

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