How to hide rows?

Hello folks,
I just would like to know that how to hide rows except dbms_rls package? I mean, it has been said that I can hide rows to create views but lets said that I have got 200 students and each student can see only their rows in students table, in that scenerio I have to create 200 views, isn't it? I just would like to learn that how to hide rows with using views? Do you have any ideas?
Note: I know dbms_rls package, except this solution I am tryin to find onather solution.
Thanks a lot.

Hi,
Polat wrote:
Hello folks,
I just would like to know that how to hide rows except dbms_rls package? I mean, it has been said that I can hide rows to create views but lets said that I have got 200 students and each student can see only their rows in students table, in that scenerio I have to create 200 views, isn't it? No! As you realized, that's not practical.
If every student is a separate Oracle user, the USER fucntion will return the name of the current user. A view definition can reference that function, like this:
CREATE OR REPLACE VIEW view_x
AS
SELECT   *
FROM    table_x
WHERE   student_account = USER;If you logged in to Oracle as POLAT, then the view will contain only rows where student_account='POLAT'.
If you logged in to Oracle as SYSTEM, then the view will contain only rows where student_account='SYSTEM'.
If students do not have thier own Oracle accounts, then they are probably authenitcated by some procedure in your package. That procedure can set a SYS_CONTEXT variable, or write data to a global temporary table, which you can then use instead of the USER function in view definitions.
Note: I know dbms_rls package, except this solution I am tryin to find onather solution.Why can't you use dbms_rls, or why don't you want to use it? It's a very powerful tool, and not vey hard to use.
I'm not saying there's never a good reason not to use dbms_rls; I'm just asking if you have one.
I hope this answers your question.
If not, give a specific example of what you want. Post CREATE TABLE and INSERT statements for some sample data for all tables involved. Identify 2 or 3 different students, and show what the contents of the view should be for each student, given the same sample data. If students do not log in to Oracle with their own usernames, then explain how you know which student is currently logged in.

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--=====
--[/SCRIPT]
Yvan KOENIG (VALLAURIS, France) jeudi 17 mars 2011 21:29:15

How to hide rows in a JTable

Once I create a JTable, how can I hide a specific number of rows during runtime?
Thanks,
Surath.
09/23/2001

You program the getValueAt(r, c) method of your table model to return the value you want to appear in that row and column. In your particular example that could mean returning values in row r if r<cutoff and values in row r+n otherwise.

Web item "TABLE" -- How to hide rows of a particular column.

HI,
In the web item "table", is there anyway that i can hide the rows of a particular column(for example: material column) except the result rows.
Here is the Query result:
Customer
Material
KF1
KF2
KF3
Result__________________________400_____700____300
1001_________________Result_____150_____300____150
_____________________10_________100_____200____100
_____________________20_________50______100____50
1002_________________Result_____250_____400____150
_____________________10_________100_____200____100
_____________________20_________150_____200____50
After formatting the query result looks like:
Customer
Material
KF1
KF2
KF3
Result__________________________400_____700____300
1001_________________Result_____150_____300____150
1002_________________Result_____250_____400____150
How can i hide the item rows except the "Result" rows of the material column?
regards,
ravi

Dear Ravi,
look in the BW WEB API Documentation on help.sap.com for more details (or just search in SDN for it).
In General:
- create class which inherit from CL_RSR_WWW_MODIFY_TABLE
- redifine method CHARACTERISTIC_CELL
- insert coding:
if i_iobjnm eq '0MATERIAL' and i_IS_SUM is initial.
free C_CELL_CONTENT.
endif.
- Insert the parameter MODIFY_CLASS with the name of your new class into your template
result: you see the result of the column but not the single values.
Hope this answer your question.
Regards Marcus
Message was edited by: Marcus Pospiech

How to hide row from table after logical delete

Hello.
I am using Jdeveloper 11.1.1.3.0, ADF BC and ADF Faces.
I want to implement Logical delete in my application.
In my Entity object I have Deleted attribute and I override the remove() method in my EntityImpl class.
    @Override
    public void remove()
       setDeleted("Y");
    }and I added this condition to my view object
WHERE NVL(Deleted,'N') <> 'Y'in my page I have a table. this table has a column to delete each row. I dragged and drop RemoveRowWithKey action from the data control
and set the parameter to *#{row.rowKeyStr}* .
I what I need is this:
when the user click the delete button I want to hide the roe from the table. I tried to re-execute the query after the delete but the row is still on the page. Why execute query does not hide the row from the screen.
here is the code I used for delete and execute query
    public String deleteLogically()
        BindingContainer bindings = getBindings();
        OperationBinding operationBinding = bindings.getOperationBinding("removeRowWithKey");
        Object result = operationBinding.execute();
        DCBindingContainer dc=(DCBindingContainer) bindings;
        DCIteratorBinding iter=dc.findIteratorBinding("TakenMaterialsView4Iterator");
        iter.getCurrentRow().setAttribute("Deleted", "Y");
        //iter.getViewObject().executeQuery();
        iter.executeQuery();
        return null;
    }as you see I used two method iter.getViewObject().executeQuery(); and iter.executeQuery(); but the result is same.

Thank you Jobinesh.
I used this method.
    @Override
    protected boolean rowQualifies(ViewRowImpl viewRowImpl)
      Object attrValue =viewRowImpl.getAttribute("Deleted");
        if (attrValue != null) {
         if ("Y".equals(attrValue))
            return false;
         else
            return true;
        return super.rowQualifies(viewRowImpl);
    }But I have one drawback for using it, and here is the case:
If the user clicks the delete button *(no commit)* the row will be hidden in the table, but when the user click cancel changes the row is not returned since it is not returned due to the rowQualifies(ViewRowImpl viewRowImpl) (the Deleted attribute is set to "N" now).
here is the code for delete and cancel change buttons
    public String deleteLogically()
        BindingContainer bindings = getBindings();
        OperationBinding operationBinding =
            bindings.getOperationBinding("removeRowWithKey");
        Object result = operationBinding.execute();
        DCBindingContainer dc = (DCBindingContainer)bindings;
        DCIteratorBinding iter =
            dc.findIteratorBinding("TakenMaterialsView4Iterator");
        iter.getCurrentRow().setAttribute("Deleted", "Y");
         iter.executeQuery();
        AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
        adfFacesContext.addPartialTarget(this.getTakenMaterialsTable());
        return null;
    public String cancelChanges(String iteratorName)
        System.out.println("begin cancel change");
        BindingContainer bindings =
            BindingContext.getCurrent().getCurrentBindingsEntry();
        DCBindingContainer dc = (DCBindingContainer)bindings;
        DCIteratorBinding iter =
            (DCIteratorBinding)dc.findIteratorBinding(iteratorName);
        ViewObject vo = iter.getViewObject();
        //create a secondary RowSetIterator to avoid disturbing row currency
        RowSetIterator rsi = vo.createRowSetIterator(null);
        //move the currency to the slot before the first row.
        rsi.reset();
        while (rsi.hasNext())
                currentRow = rsi.next();
                currentRow.setAttribute("Deleted", "N");
        rsi.closeRowSetIterator();
        iter.executeQuery();
        AdfFacesContext adfFacesContext = AdfFacesContext.getCurrentInstance();
        adfFacesContext.addPartialTarget(this.getTakenMaterialsTable());
        return null;
    }as example, if the user initially has 8 rows, then deleted 2 rows, in cancelChanges only 6 rows appears. and the deleted rows are not there??
any suggestion?

How to Hide rows in ALV without affecting total sum at the end of table?

Hi,
I need some help in hiding particular rows in an ALV Grid without affecting the total sum at the end of the table. I am trying to hide the rows that have negative quantities, but I still need those values so that the user can still compute for the total sums. Can anyone help? Thanks.
Joseph

Hi,
Hopw this way you can hide the rows in the GRID.
DATA:
ld_column      TYPE lvc_fname,
ld_hide          TYPE abap_bool.
FIELD-SYMBOLS:
<ls_entry>     TYPE any,
<ld_fld>         TYPE any.
ld_column = 'COL_1'. " column which you want to suppress if everything is zero
ld_hide     = abap_true. " = 'X'; default hide column
LOOP at <gt_outtab> ASSIGNING <ls_entry>.
    ASSIGN COMPONENT (ld_column) OF STRUCTURE <ls_entry> TO <ld_fld>.
    IF ( <ld_fld>   > 0 ).
      ld_hide = abap_false. " display column because at least single value > 0
      EXIT. " leave LOOP
    ENDIF.
ENDLOOP.
READ TABLE gt_fcat INTO ls_fcat
                       WITH KEY fieldname = ld_column.
IF ( syst-subrc = 0 ).
    ls_fcat-no_out = ld_hide.
    MODIFY gt_fcat FROM ls_fcat INDEX syst-tabix.
ENDIF.
hop you will get the total with for those columns too.
Regards,
Madhavi

How to hide rows?

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