AJAX delete row

Carl:
Please see
http://htmldb.oracle.com/pls/otn/f?p=24317:134
Clicking the x image deletes the table row from the DOM and also deletes it from the database using an application process and htmldb_get (as your examples showed).
All this works fine but the pagination text shown at the bottom of the region is now "lying"! Is there a way to refresh that pagination text to be accurate?
Thanks

Hello,
We timed the differences between doing certain functionality between frames, iframes, regular posts and the ajax and in almost all cases the ajax was faster, especially compared to iframes, of course were talking about subsecond differences. You can test timing by having a popup window open and writing timestamps into a form
When people say something is slower than regular posts, which is why we tested, it usually turns out that it's because they see the whole page blink and it just looks like there is more going on.
Of all the examples the report update 11933:40 is one of the slower ones since your still pulling quite a bit of page html, I'll look into what your doing because you should be able to hook into the report engine directly like we do the Ajax based pagination and then skip the extra html and page processing.
Very fancy by the way.
Carl
Message was edited by:
Carl Backstrom

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Delete row in report........

i have report, i have to delete row without page loading. i have wrote the application process(on demand). but i dont know how to write the javascript for htmldb items...
my req is when i click the delete button the checked row(using check box) should delete without page load. i use ajax to call the javascript to process the plsql code.
can any one pls help me to modify the below javascript coding....
application process
begin
for i in 1..htmldb_application.g_f01.count
loop
delete from service
where service_code = htmldb_application.g_f02(htmldb_application.g_f01(i));
end loop;
end;
javascript
function get_repd(){
var get = new htmldb_Get(null,html_GetElement('pFlowId').value,'APPLICATION_PROCESS=REP_D',0);
}thanks and regard.
skud.

Hi Skud,
I will have to say your observation is incorrect. The whole purpose of doing the DML via Application Process using ajax technique is to avoid a page refresh, otherwise it would simply be a page level after submit process.
I have just tested and its working as expected, i.e
1. You select one or more records
2. Use the delete button to delete
3. Records get deleted from DB, you get a message
4. Only the report region get refreshed. (However this could delay for a few seconds if the dataset is larger and server is very busy)
If you are however using APEX 4.x you could use dynamic actions to get it done. My work environment is still on 3.x so my solution is using classic method.
If you are still having issue could you please let me know which browser you are using?
Cheers
Ligon

How to add or delete rows in tablecontrol?

Hi,
I am using a tablecontrol to enter data records.
I want to use 2 buttons, one to insert a row into a tablecontrol and another to delete a selected row of a tablecontrol.
How do I insert or delete rows of a tablecontrol?
Thanks.

Hi Kumar,
Please look at the below sections......
ADDING BLANK LINES
To add blank lines to table control we do not need to change any of the fields of the structure CXTAB_CONTROL simply adding blank lines to the internal table will do.
INSERT INITIAL LINE INTO itab.
DELETING SELECTED ROWS
Deletion of selected rows is simple. To delete selected rows first we will determine the rows which have been selected through selection column .
FOR SINGLE ROW SELECTION
IF mark EQ 'X' . "mark is the name of selection column field
DELETE itab FROM workarea .
ENDIF.
FOR MULTIPLE ROW SELECTION
*To deetermine the rows selected we will use the selection column field to loop
*through the internal table.
LOOP AT itab WHERE mark EQ 'X'. "mark is the name of selection column field
DELETE itab " and is part of the internal table .
ENDLOOP.
Thanks,
Ravi Kanth

Delete Rows from T1 which are Not in T2

Hi
I've 2 Tables like below
T1
N1
N2
2
11
2
22
3
33
8
44
8
88
T2
N1
N2
2
22
8
88
If I Run Delete query, I must delete Rows from T1 which are Not in T2
For example, I must delete Rows 1,3,4 from T1
So how to write that delete query? Please advice

Delete from T1
Where not Exists (select * from T2 Where t1.N1=t2.N1 and t1.N2=t2.N2)
--or
Delete t
From t1 t
left JOIN t2 m
ON m.N1=t.N1 and m.N2=t.N2
WHERE m.N1 is null and m.N2 is null
--Or
;With mycte as
select N1,N2 from T1
Except
select N1,N2 from T2
Delete t
From t1 t
INNER JOIN mycte m
ON m.N1=t.N1 and m.N2=t.N2

Cannot DELETE rows from LOV on running...is it a bug ??

One of the features I appreciated in the new version of JHeadstart is that we can now insert, modify and delete rows on LOV (even in the database).
We have just to check on Lookup properties :
Multi-row insert allowed
Multi-row update allowed
Multi-row delete allowed
I cheked all of them and on runnig I could insert and update records in LOV.
When I tried to delete records from LOV the system display information message "nothing to save" and in fact no records were deleted.
Normally since I checked the delete property it should be possible to delete rows from LOV
thanks for any Help

Monta,
I could reproduce this, it is a bug. Added to the fix list for the next release.
Thanks for reporting,
Steven Davelaar,
JHeadstart Team.

Unable to delete rows from Target.

Hello everyone,
I am unable to delete rows from target data store. Here is what I have done.
Source Oracle 10g - staging 11g - Target Oracle 11g
I have implemented consistent set CDC on data model in staging and added 2 tables to CDC and turned on the journals . Both tables A and B are joined together via Column E (primary key of table A). Table A is the master table(has foreign key). Table B is child table. Target column consists of all the columns of both table A and B.
Following is what I am able to do and not to do
ABLE TO DO. If data is inserted into both or any of journalized tables I can successfully load the same in target by performing following steps. 1. Extend the consistency window at model level. Lock subscriber. Run the interface with any source table marked as Journalized data only. Unlock subscriber and purge journal.
ABLE TO DO. If data is updated in any of the journalized table, along with the steps mentioned above I can execute two interfaces. In one Interface table A marked as journalized data only Joined with table B and in second interface table B marked as Journalized data only joined to table a.
NOT ABLE TO DO If data is deleted from one or both tables it shows up as journalized data in JV$D<tablename> marked as D with date and subscriber name but when i run the interface by extending the window , locking subscriber executing both interfaces, unlock subscriber purge journals. no change takes place is Target. After unlocking subscriber step, journalized data gets removed from JV$D view. Please let me know what I am doing wrong here. How can rows delted from source can also be deleted from TARGET?
NOTE : In the flow table SYNC_JRNL_DELETES is YES
In moel under jounalized table tab Table have following order Table A folloed by Table B
Thanks in advance
Greenwich

Sorry I still do not get it. when you say "Its a legacy app", are you talking about the VB.NET app ?
If so then I repeat my self :-) Why not to connecting to the SQL server directly?
* even if you need information from several databases (for example ACCESS + SQL Server), in most cases, it is much better to connect directly and get each information to the app. Then in your app you can combine the information and analyse it
[Personal Site] [Blog] [Facebook]
Access app is the legacy app.

Database, Dataset, Table Adaptors Error "Unable to load, Update requires a valid DeleteCommand when passed DataRow collection with deleted row"

Microsoft Visual Basic 2010 Express.
I am new to Visual Basic programing and i am trying to understand the relationships between Datasets, database, table Adaptors. I have to following code that is is giving me the following error" Unable to load, Update requires a valid DeleteCommand
when passed DataRow collection with deleted rows".
I can track the error and its located in "OffsetTableTableAdapter.Update(MaterionOffsetDataSet.OffsetTable)" code. What am i missing?
It seems that i can delete the data on the DataGridView Table and it only displays the correct data. but my database is not updating, even though the data grid displays differently.I can determine this because, when i save the offset database, i have all
the previous uploads and all the rows that i wanted to delete are still there.
My final goal is to be able to import offset data from a CSV file, save this data on the pc, send a copy of this data to a NuermicUpDown so the customer can modify certain numbers. From here they download all the date to a controller. IF the customer
needs to modify the imported data, they can go to a tab with a data grid view and modify the table. They will also have to option to save the modified data into a csv file.
Im not sure if i am making this overcomplicated or if there is a easier way to program this.
CODE:
Private Function LoadOffSetData()
        Dim LoadOffsetDialog As New OpenFileDialog 'create a new open file dialog and setup its parameters
        LoadOffsetDialog.DefaultExt = "csv"
        LoadOffsetDialog.Filter = "csv|*.csv"
        LoadOffsetDialog.Title = "Load Offset Data"
        LoadOffsetDialog.FileName = "RollCoaterOffset.csv"
        If LoadOffsetDialog.ShowDialog() = Windows.Forms.DialogResult.OK Then 'show the dialog and if the result is ok then
            Try
                Dim myStream As New System.IO.StreamReader(LoadOffsetDialog.OpenFile) 'try to open the file with a stream reader
                If (myStream IsNot Nothing) Then 'if the file is valid
                    For Each oldRow As MaterionOffsetDataSet.OffsetTableRow In MaterionOffsetDataSet.OffsetTable.Rows
                        oldRow.Delete()
'delete all of the existing rows
                    Next
                    'OffsetTableTableAdapter.Update(MaterionOffsetDataSet.OffsetTable)
                    Dim rowvalue As String
                    Dim cellvalue(25) As String
                    'Reading CSV file content
                    While myStream.Peek() <> -1
                        Dim NRow As MaterionOffsetDataSet.OffsetTableRow
                        rowvalue = myStream.ReadLine()
                        cellvalue = rowvalue.Split(","c) 'check what is ur separator
                        NRow = MaterionOffsetDataSet.OffsetTable.Rows.Add(cellvalue)
                        Me.OffsetTableTableAdapter.Update(NRow)
                    End While
                    Me.OffsetTableTableAdapter.Update(MaterionOffsetDataSet.OffsetTable)
                    MainOffset.Value = OffsetTableTableAdapter.MainOffsetValue          'saves all the table offsets
to the offset numericUpDown registers in the main window
                    StationOffset01.Value = OffsetTableTableAdapter.Station01Value
                    StationOffset02.Value = OffsetTableTableAdapter.Station02Value
                   myStream.Close() 'close the stream
                    Return True
                Else 'if we were not able to open the file then
                    MsgBox("Unable to load, check file name and location") 'let the operator know that the file wasn't able to open
                    Return False
                End If
            Catch ex As Exception
                MsgBox("Unable to load, " + ex.Message)
                Return False
            End Try
        Else
            Return False
        End If
    End Function

Hello SaulMTZ,
>>I can track the error and its located in "OffsetTableTableAdapter.Update(MaterionOffsetDataSet.OffsetTable)" code. What am i missing?
This error usually shows that you do not initialize the
DeleteCommand object, you could check this
article to see if you get a workaround.
>> Im not sure if i am making this overcomplicated or if there is a easier way to program this.
If you are working CSV file, you could use OleDB to read it which would treat the CSV file as a Table:
http://www.codeproject.com/Articles/27802/Using-OleDb-to-Import-Text-Files-tab-CSV-custom
which seems to be easier (in my opinion).
Regards.
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Right way to delete row before insert

I create a new row with method of ViewObject.
Row row = viewObject.createRow();Then I want to delete this row. I found there are 4 methods. Which is the right answer?
//1.
row.remove();
//2.
row.refresh(Row.REFRESH_REMOVE_NEW_ROWS);
//3.
row.refresh(Row.REFRESH_FORGET_NEW_ROWS);
//4.
row.removeFromCollection();Thanks,

Timo, we're having a problem when deleting as you describe, maybe you can offer some advice?
We have a button to delete a row from an editable table, this is set to immediate=true (obviously the user should be able to skip validation when doing a delete). After deleting, if the user then clicks another button to add a new row, the values from the deleted row show in the new row :(
If we set immediate=false this seems to fix the problem, but we then get the undesirable side effect that the user has to make sure all the values in the row are correct before it can be deleted (because the validation is firing). The user experience becomes a bit strange.

Table compare deleting rows which does not exist in target table

Hi Gurus,
I am struggling with an issue in Data Services.
I have a job which uses Table Compare, then History Preserving and then a Key Generation transforms.
There is every possibility that data would get deleted from the source table.
Now, I want to delete them from the target table also.
I tried Detect deleted rows but it is not working.
Could some one please help me on this issue.
Thanks,
Raviteja.

Doesn't history preserving really only operate on "Update" rows. Wouldn't it only process the deletes if you turned the "Preserve Delete row(s) as update row(s)" on?
I would think if you turned on Detect Delete rows in the Table compare and did not turn this on in the history preserving it would retain those rows as delete rows and effectively remove them from the target.
Preserve delete row(s) as update row(s)
Converts DELETE rows to UPDATE rows in the target warehouse and, if you previously set effective date values (Valid from and Valid to), sets the Valid To value to the execution date. Use this option to maintain slowly changing dimensions by feeding a complete data set first through the Table Comparison transform with its Detect deleted row(s) from comparison table
option selected.

PL/SQL procedure for deleting rows

We have to delete rows from a table by initiating parallel processes depending on no of connections, and also variable commit frequency. The procedure has to start by itself in case of failure of 1 or more parallel processes, by identifying the position where it stopped. Please some one help me what would be th elogic needed to write the [rocedure.
Thanks in Advance
Edited by: 864979 on Jun 9, 2011 10:02 PM

Be careful of how this is designed and coded. It is very easy to do it horribly wrong, causing contention and problems.
Have a look at DBMS_PARALLE_EXECUTE.
If the package is not available on your Oracle version, then look at {message:id=1534900} for a manual approach.

Table layout w.r.t other tables and text while inserting/deleting rows.

I have 3 tables in a single page. One is left aligned and other two are right aligned. Then there is some text below the tables.
Now when I delete some rows from Table-1 the left aligned one, the Table 2 and text shift up filling the space below Table1.
Now I don't want the text/table to shift up/down when I add/delete rows from Table1 i.e Table1 should expand/contract in the empty space below it.
Now If I do the same thing for Table3 (Right aligned one) i.e add/delete rows there is no effect on text as shown :
All 3 tables are same and have exact positioning and other properties.
Please suggest any solution as I would be populating the table through word automation service (interop).

Another approach would be to use nested tables, with your 'outer' table having two columns and the inner tables going into different columns. You can hide the outer table's cell borders so its presence is less apparent. If the Outer table has auto row
height, it will adjust to accommodate whatever row addition/deletion you do to the inner tables. The only proviso is that the inner tables shouldn't have 'around' text wrapping. The two rhs tables can go into the same cell - all they need is a separating paragraph.
With this layout, the text will always remain below the outer table.
Cheers
Paul Edstein
[MS MVP - Word]

How to invoke delete rows event in ALV_GRID

I have two screens.
The first screen 100 have several splitter control ALV grids that display data.
The second screen 200 is the maintenance of screen on 100 that have two grids side by side need to update simultanously.
When I update or insert data on the second screen, I refresh data on screen 100 so that when user navigate to screen 100 they can see the updated data.
For insert rows or modified rows, it works as expected.
However when I delete rows on screen 200 and click go back to 100, screen 100 still shows the rows that I deleted in screen 200. I think that I missed something.
I debug in even data_changed in cl_gui_alv_grid when I deleted, it did not go through this logic therefore I cannot refresh the other grids on screen 100.
Here are the events that I defined and registered in the PBO of screen 200.
class lcl_event_handler definition.
class-methods:
on_data_changed FOR EVENT data_changed
OF cl_gui_alv_grid IMPORTING er_data_changed e_ucomm,
on_user_command for event user_command of cl_gui_alv_grid importing e_ucomm.
endclass.
set handler:
lcl_event_handler=>on_data_changed for go_grid,
lcl_event_handler=>on_user_command for go_grid.
What did I do wrong?
Thanks,

Hi Akinosora,
>
Akinosora wrote:
> When I update or insert data on the second screen, I refresh data on screen 100 so that when user navigate to screen 100 they can see the updated data.
>
> For insert rows or modified rows, it works as expected.
>
> However when I delete rows on screen 200 and click go back to 100, screen 100 still shows the rows that I deleted in screen 200. I think that I missed something.
Don't you need to do a refresh of the data for a delete action as well?
Kind regards,
Robert

Deleting rows from a table

COuld anyone tell me how to delete rows from a table which has millions of rows.
TIA,
Oracle user

if you are deleting all the rows, use "truncate table" in sql*plus.
or if you are deleting all but a handful of rows, then copy the rows you still want to a spare table, drop the original table, and rename the spare table back to the original table's name.
hope this helps

Delete row in a table (not ALV)

i have a table on my web-dynpro-view. I defined a delete-Button and a method with some coding.
If the User marks a row and press the button, the row is deleted. Here's the code:
METHOD onactioneintrag_loeschen .
DATA: wd_node TYPE REF TO if_wd_context_node,
         wa_temp TYPE REF TO if_wd_context_element,
         lt_temp TYPE wdr_context_element_set.
wd_node = wd_context->get_child_node( name = 'LV' ).
CALL METHOD wd_node->get_selected_elements
    RECEIVING
      set = lt_temp.
LOOP AT lt_temp INTO wa_temp.
    wd_node->remove_element( EXPORTING element = wa_temp ).
ENDLOOP.
ENDMETHOD.
My problem: in the context-change-log i can't identify the deleted rows. It's impossible to make a difference between a change of selection and a delete.

Hi David,
You can declare one attribute in the view of type ur row.
and store the deleted row in this attribute in ur delete method.
DATA: wd_node TYPE REF TO if_wd_context_node,
wa_temp TYPE REF TO if_wd_context_element,
lt_temp TYPE wdr_context_element_set.
wd_node = wd_context->get_child_node( name = 'LV' ).
CALL METHOD wd_node->get_selected_elements
RECEIVING
set = lt_temp.
LOOP AT lt_temp INTO wa_temp.
<Attribute_name> = wa_temp .
wd_node->remove_element( EXPORTING element = wa_temp ).
ENDLOOP.
ENDMETHOD.
Hope this will help you.
Thanks & Regards,
Arvind

How to disable delete row in sales order

Hi
Is possible to disable the functions to delete row in Sales Order and Purchase Order.
How can we made that? by SDK or exist anything else?
Regards
VS
Edited by: Vasco Silva on Jan 8, 2009 8:24 PM

There is no out of the box solution to disable row deleting function. The alternative can be used would be approval procedure. If the documents are subject to approval, all rows will be locked from any changes.
Thanks,
Gordon

AJAX delete row

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