Instead of delete trigger rows deleted

Hi All.
Im using a few instead of triggers over a view. The view selects data from other tables and merges them together. This view essentially forms the parent of a few one2one relationships with other tables.
However my application doesnt know its a view (im using hibernate orm framework) - so when I delete this object which is mapped to a view, I get an error saying that no records where deleted. Also, if i test in sqlplus, i get "0 rows deleted" in response to a delete - which of course is true, but i want it to say 1 or some number of my choice.
How can i modify my "instead of delete" trigger so that the number for records deleted count returned to caller is 1, or some number i can define?
Here is my current trigger...
create or replace
trigger product_view_delete_trigger
instead of delete
on product_view1
for each row
begin
null;
end;
Thanks.

In regards to why Im using a view - its discussed here...
Crazy Union across 3 tables
The view im using is not updatable - it uses a union. I use "instead of triggers" to trick my application into thinking its a real table which is insertable. And this works fine.
Im having trouble tricking my application into think that the delete was successful, because the "instead of delete" trigger doesnt actually delete anything - which is what i wnat - but i want it to report back to the caller that a delete occurred.
I want the SQL%ROWCOUNT to be set to 1 or whatever. Perhaps this is not hte variable, but im hoping there is some variable I can set which is used to report back to the client as to how many records were deleted.
thx.

Similar Messages

Delete Trigger

Hi,
I got a question using triggers. I have a statement level delete trigger that calls a package function used to insert data into various archiving tables. In order to keep track of the deleted rows I have a row level delete trigger that keeps the deleted Ids of my objects in a special table that I later query in my statement level trigger.
My main problem is that while all triggers are called properly and data is removed from desired tables, the data that should be inserted into my archiving tables does not appear until the trigger is fired again it appears. I don't really see what could cause data to be deleted and effectively removed while the data i want to insert does not appear until the next time the trigger is fired.
could it be that i need to explicitely commit the inserted data ?
If it's not clear, I could always post some of the code used.
Thanks,
Greg

Sure (I hope it won't be too messy though).
---- PACKAGE DEF.
I have a package variable defined as follows:
TYPE idTable IS TABLE OF NUMBER(19) INDEX BY BINARY_INTEGER;
And my variables:
del_oldRows idTable;
del_emptyRows idTable;
---- PACKAGE BODY
In the body I have calls like this:
PROCEDURE delete_transaction(aID NUMBER) IS
BEGIN
-- I) Add New Data into appropriate archiving tables
-- 1) Many-to-Many Table for first object
INSERT ALL INTO X_OBJ1_OBJ2_DLTD
DLTD_ID,
OBJ1_ID,
OBJ2_ID
SELECT
ID,
OBJ1_ID,
OBJ2_ID
FROM X_OBJ1_OBJ2
WHERE (X_OBJ1_OBJ2.ID = aID )
-- 2) Second object <SNIP>
-- 1) Many-to-Many Table for first object
DELETE FROM X_OBJ1_OBJ2
WHERE (X_OBJ1_OBJ2.ID = aID );
END delete_transaction;
---- Before Delete Trigger (Statement Level)
This one resets the package in a consistent state:
BEGIN
mypackage.del_oldRows := mypackage.del_gatetrans_emptyRows;
END;
---- After Delete Trigger (Row Level)
This one adds Ids in my package variable:
BEGIN
mypackage.del_oldRows(mypackage.del_oldRows.COUNT + 1) := :OLD.ID;
END;
---- After Delete Trigger (Statement)
This one goes through each row in my package "table" and calls the function to add the related data in my archiving table:
BEGIN
FOR i IN 1 .. mypackage.del_oldRows.COUNT LOOP
mypackage.delete_transaction(mypackage.del_oldRows(i));
END LOOP;
mypackage.del_oldRows := mypackage.del_emptyRows;
END;
---- END
Anyways that's the basic logic. Kinda what is suggested for mutating tables when playing with UPDATE triggers I guess. Here it's just because I want my triggers to be simple and focus on inserting the archiving data for the object triggering the... trigger while related objects that need to be archived should be taken care of in my package function. My problem is that the data is removed properly but not appears as inserted until the next time the trigger is fired, as if i was always "one" trigger late :(.
If it's not clear enough, please let me know.
Thanks,
Greg

Before delete trigger and foreign key relationship

Hi,
I am analysing one database for migration. On one parent table there is before delete trigger , to delete records from child. Also there is foreign key relationship on child table for this parent table.
When I am deleting a row from parent, message gets displayed as "there are child records found."
I would like to know, if there is foreign key relatioship then delete trigger on parent does't work, what is exactly happening?

Could you post that trigger code and the Oracle version as well?
With basic assumptions, I can't reproduce what you have stated here.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> create table parent (id number primary key);
Table created.
SQL> create table child (id number);
Table created.
SQL> alter table child add constraint fk_parent foreign key (id) references parent;
Table altered.
SQL> create or replace trigger bdr_parent
2 before delete on parent
3 for each row
4 begin
5 delete from child where id = :old.id;
6 end;
7 /
Trigger created.
SQL> insert into parent (id) values (1);
1 row created.
SQL> insert into child (id) values (1);
1 row created.
SQL> commit;
Commit complete.
SQL> delete from parent where id = 1;
1 row deleted.
SQL> select * from parent;
no rows selected
SQL> select * from child;
no rows selected
SQL> rollback;
Rollback complete.
SQL> alter table child drop constraint fk_parent;
Table altered.
SQL> alter table child add constraint fk_parent foreign key (id) references parent on delete cascade;
Table altered.
SQL> delete from parent where id = 1;
delete from parent where id = 1
ERROR at line 1:
ORA-04091: table SCOTT.CHILD is mutating, trigger/function may not see it
ORA-06512: at "SCOTT.BDR_PARENT", line 2
ORA-04088: error during execution of trigger 'SCOTT.BDR_PARENT'
SQL>

Import of .bacpac fails on view with instead of delete trigger

I'm using Azure Premium SQL.
When I export the database using the portal and blob storage and then immediately try to import it as a test to a new database (also using the portal) I get the error below.
Looking at the restored database, many of the views are not there (including the one listed) although that may be because it failed on this view during the restore.
The trigger seems to be working just fine in the original database. It just won't restore from the bacpac.
BTW, I notice in the original database before backup, the trigger says "DELETE
FROM alndata.AptChangeLog", not "DELETE alndata.AptChangeLog"
Thanks.
Bryan
Error encountered during the service operation.
Could not import package.
Error SQL72014: .Net SqlClient Data Provider: Msg 8197, Level 16, State 4, Procedure AdminChangeLogAptNameDelete, Line 7 The object 'AlnData.AdminChangeLogAptName' does not exist or is invalid for this operation.
Error SQL72045: Script execution error. The executed script:
CREATE TRIGGER [AlnData].[AdminChangeLogAptNameDelete]
ON [AlnData].[AdminChangeLogAptName]
INSTEAD OF DELETE
AS BEGIN
SET NOCOUNT ON;
DELETE alndata.AptChangeLog
WHERE aptchangelog_id IN (SELECT aptchangelog_id FROM deleted);
END

Hello,
Sorry for delay.
I had found a feedback about trigger issue when restore SQL Database from a BACPAC file. Microsoft said the fixed will be available in the next major release of DacFx.
Feedback:
SQL Azure fires a trigger when restoring from bacpac
You can refer to the workarounds in the feedback. For example, if there is small amount of triggers on the database, you can try to remove the triggers and then recreate when restore from bacpac file.
Regards,
Fanny Liu
Fanny Liu
TechNet Community Support

Problem with multi row delete

Hi, I'm new in apex and I tried to build master detail report on some view. Everything is cool but "delete checked" doesn't work.
"ORA-20001: Error in multi row delete operation: row= , ORA-06502: PL/SQL: numeric or value error: NULL index table key value,"
the problem is that I don't know what is wrong :), I have a special trigger "instead of delete on MY_VIEW", but in this error problem is not explained.
Anybody knows what can be wrong? It is probably a problem with trigger or multi row doesn't work with views? I couldn't find how MRD knows what kind of statement use to delete rows so I don't know if the statement that program used is correct. In debug it lokks that:
0.32: ...Do not run process "ApplyMRU", process point=AFTER_SUBMIT, condition type=REQUEST_IN_CONDITION, when button pressed=
0.32: ...Process "ApplyMRD": MULTI_ROW_DELETE (AFTER_SUBMIT) #OWNER#:MY_VIEW:ITEM1:ITEM2
0.33: Show ERROR page...
0.33: Performing rollback...
thanks for any help
//sorry for english mistakes
edit: it doesn't matter if I use in trigger delete from ... where item1=:OLD.item1 ; or if I use item1=:P4_item1 (which actually saves correct values)
Edited by: user5931224 on 2009-06-13 08:55

I realised that this is not a problem with trigger, I changed trigger to "NULL;" and problem is the same. Maybe sb used master detail on view not only on tables and know what can be wrong in this situation?

Tabular form - Multi row delete error

Apex 4.0.2
We have a simple CRUD type of application on a bunch of tables built using Apex v1.6 that has, over the years, been upgraded to v4.0.2 and it is working mostly fine. It uses all out-of-the-box standard components, forms, classic reports, nothing too fancy. Recently one of the tabular forms started to misbehave, the multi-row-delete process raises a No Data Found error. The tabular form is based on a view with a INSTEAD OF trigger to handle the DML. Manually deleting the row in SQL*Plus works fine delete from mytab here pk_id = :pk_id but selecting the same row in Apex and clicking Delete raises the error.
How does one go about troubleshooting & fixing this sort of thing? I tried re-saving the region in the Builder, exporting/importing the entire app, nothing. Running in Debug mode doesn't really provide any additional information, just that the MRD process failed. Tabular forms are the most frustrating, opaque component in Apex, wish they were easier to troubleshoot.
Any ideas?

Hello Vikas,
>> How does one go about troubleshooting & fixing this sort of thing?
By given us a bit more information :)
• Is it a manual Tabular Form (using the ITEM API) or a wizard created one?
• Are the Insert/Update operations work correctly? If not, what is the type of your PK column(s)?
• If the problem is limited to the Delete operation, maybe the problem lies with the checkbox column. Are you sure that on page it is rendered as the f01 column?
• As triggers are involved, can you save the PK that the trigger sees? Is it the expected value?
• Are there any other processes that are fired before the DML process? If so, maybe the problem is with them. You can temporarily disable them and see if it change anything.
>> Tabular forms are the most frustrating, opaque component in Apex, wish they were easier to troubleshoot
Yes, I agree. However, I believe that 4.1 made some serious advancement where Tabular Form is concerned. Having simplified Tabular Form related Validations and Process should make things easier, and as a result, prone to less errors. Still, the main problem is that the type of error you are talking about is usually the result of metadata problems and these are indeed very hard to track.
Regards,
Arie.
&diams; Please remember to mark appropriate posts as correct/helpful. For the long run, it will benefit us all.
&diams; Author of Oracle Application Express 3.2 – The Essentials and More

Multi-row Delete (MRD) on a view?

All,
I created a tabular form on a view, using an instead of trigger to encapsulate the logic for the data manipulations. Works great--until someone checks a row and hits the delete button, at which point APEX throws this error:
ORA-20001: Error in multi row delete operation: row= 107970-18527, ORA-06502: PL/SQL: numeric or value error: character to number conversion error,
Error multi row operation failedAs far as I can tell, it's not even getting to the trigger; I commented out the body of the instead of delete trigger (replacing it with null), and I'm still getting the same error. I have no validations or processes on the page at this point.
The underlying data of the view requires three columns for a unique identifier, so I've concatenated two of them together as an extra column in the view (creating a varchar2 column), and told the MRD to use the calculated column and the third column as the primary key columns. But even using two of the three numeric columns (tweaking the trigger to use a hard-coded value for the third) as an ID fails miserably.
Any idea what's going on?
Thanks,
-David
(In case it makes a difference, we're on APEX 4.0.1.)

Hi David,
This might help:
http://oraclequirks.blogspot.com/2011/07/ora-20001-error-in-multi-row-delete.html
Hope it helps!
Regards,
Kiran

Delete operation is not working to delete selected row from ADF table

Hi All,
We are working on jdev 11.1.1.5.3. We have one ADF table as shown below. My requirement is to delete a selected row from table, but it is deleting the first row only.
<af:table value="#{bindings.EventCalendarVO.collectionModel}" var="row"
rows="#{bindings.EventCalendarVO.rangeSize}"
emptyText="#{bindings.EventCalendarVO.viewable ? applcoreBundle.TABLE_EMPTY_TEXT_NO_ROWS_YET : applcoreBundle.TABLE_EMPTY_TEXT_ACCESS_DENIED}"
fetchSize="#{bindings.EventCalendarVO.rangeSize}"
rowBandingInterval="0"
selectedRowKeys="#{bindings.EventCalendarVO.collectionModel.selectedRow}"
selectionListener="#{bindings.EventCalendarVO.collectionModel.makeCurrent}"
rowSelection="single" id="t2" partialTriggers="::ctb1 ::ctb3"
>
To perform delete operation i have one delete button.
<af:commandToolbarButton
text="Delete"
disabled="#{!bindings.Delete.enabled}"
id="ctb3" accessKey="d"
actionListener="#{AddNewEventBean. *deleteCurrentRow* }"/>
As normal delete operation is not working i am using programatic approach from bean method. This approach works with jdev 11.1.1.5.0 but fails on ver 11.1.1.5.3
public void deleteCurrentRow (ActionEvent actionEvent) *{* DCBindingContainer bindings =
(DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
DCIteratorBinding dcItteratorBindings =
bindings.findIteratorBinding("EventCalendarVOIterator");
// Get an object representing the table and what may be selected within it
ViewObject eventCalVO = dcItteratorBindings.getViewObject();
// Remove selected row
eventCalVO.removeCurrentRow();
it is removing first row from table still. Main problem is not giving the selected row as current row. Any one point out where is the mistake?
We have tried the below code as well in deleteCurrentRow() method
RowKeySet rowKeySet = (RowKeySet)this.getT1().getSelectedRowKeys();
CollectionModel cm = (CollectionModel)this.getT1().ggetValue();
for (Object facesTreeRowKey : rowKeySet) {
cm.setRowKey(facesTreeRowKey);
JUCtrlHierNodeBinding rowData = (JUCtrlHierNodeBinding)cm.getRowData();
rowData.getRow().remove();
The same behavior still.
Thanks in advance.
Rechin
Edited by: 900997 on Mar 7, 2012 3:56 AM
Edited by: 900997 on Mar 7, 2012 4:01 AM
Edited by: 900997 on Mar 7, 2012 4:03 AM

JDev 11.1.1.5.3 sounds like you are using oracle apps as this not a normal jdev version.
as it works in 11.1.1.5.0 you probably hit a bug which you should file with support.oracle.com...
Somehow you get the first row instead of the current row (i guess). You should debug your code and make sure you get the current selected row in your bean code and not the first row.
This might be a problem with the bean scope too. Do you have the button (or table) inside a region? Wich scope does the bean have?
Anyway you can try to remove the iterator row you get
public void deleteCurrentRow (ActionEvent actionEvent) { DCBindingContainer bindings =
(DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
DCIteratorBinding dcItteratorBindings =
bindings.findIteratorBinding("EventCalendarVOIterator");
dcItteratorBindings.removeCurrentRow();Timo

How to delete selected row in table control

Hi all,
here is my coding for deleting selected row.
But it is not working correctly.
I am not able to delete seleced row.
If i press delete button it automatically delete from beginning instead of selected rows.
Can anyone can help me plz...
CONTROLS rowdeleting TYPE TABLEVIEW USING SCREEN 100.
TABLES zdetails.
data : begin of itab occurs 0,
NAME TYPE ZDETAILS-NAME,
ADDRES TYPE ZDETAILS-ADDRES,
CONTACTNO TYPE ZDETAILS-CONTACTNO,
INIT TYPE C,
end of itab .
DATA OK_CODE LIKE SY-UCOMM.
CALL SCREEN 100.
MODULE STATUS_0100 OUTPUT.
SET PF-STATUS 'BACK'.
IF ITAB-INIT IS INITIAL.
SELECT NAME ADDRES CONTACTNO FROM ZDETAILS
INTO CORRESPONDING FIELDS OF TABLE ITAB.
DESCRIBE TABLE ITAB LINES rowdeleting-LINES.
ITAB-INIT = 'X'.
ENDIF.
ENDMODULE. " STATUS_0100 OUTPUT
MODULE CHANGE_SDYN_CONN OUTPUT.
READ TABLE itab INTO ZDETAILS INDEX rowdeleting-current_line.
ENDMODULE. " CHANGE_SDYN_CONN OUTPUT
MODULE READ_TABLE_CONTROL INPUT.
IF ITAB-INIT = 'X' AND OK_CODE = 'DELETE'.
DELETE ITAB index rowdeleting-current_line ."FROM ZDETAILS.
DESCRIBE TABLE ITAB LINES rowdeleting-LINES.
ENDIF.
ENDMODULE. " READ_TABLE_CONTROL INPUT
MODULE USER_COMMAND_0100 INPUT.
CASE OK_CODE.
WHEN 'BACK'.
LEAVE PROGRAM.
WHEN 'DELETE'.
IF ITAB-INIT = 'X' AND OK_code = 'DELETE'.
DELETE ITAB index rowdeleting-current_line .
ENDIF.
ENDCASE.
ENDMODULE.
regards ,
ranjith.

Hi,
Check the following code:
CONTROLS TABLE_CONTROL TYPE TABLEVIEW USING SCREEN 100.
TABLES SDYN_SDW4.
DATA SDYN_ITAB LIKE STANDARD TABLE OF SDYN_SDW4.
DATA INIT.
DATA OK_CODE LIKE SY-UCOMM.
DATA SAVE_OK LIKE SY-UCOMM.
DATA MARK.
DATA COL TYPE CXTAB_COLUMN.
CALL SCREEN 100.
*&      Module STATUS_0100 OUTPUT
      text
MODULE STATUS_0100 OUTPUT.
SET PF-STATUS 'GRUND'.
SET TITLEBAR '100'.
IF INIT IS INITIAL.
Datenbeschaffung
   SELECT CARRID CONNID CITYFROM AIRPFROM CITYTO AIRPTO DEPTIME ARRTIME
            DISTANCE DISTID
            FROM SPFLI
            INTO CORRESPONDING FIELDS OF TABLE SDYN_ITAB.
    DESCRIBE TABLE SDYN_ITAB LINES TABLE_CONTROL-LINES.
    INIT = 'X'.
ENDIF.
ENDMODULE.                             " STATUS_0100 OUTPUT
*&      Module FILL_TABLE_CONTROL OUTPUT
      text
MODULE CHANGE_SDYN_CONN OUTPUT.
you can change the content of current table control line via
sdyn_conn
READ TABLE sdyn_itab INTO sdyn_conn INDEX table_control-current_line.
ENDMODULE.                             " FILL_TABLE_CONTROL OUTPUT
*&      Module READ_TABLE_CONTROL INPUT
      text
MODULE READ_TABLE_CONTROL INPUT.
Check input values
IF MARK = 'X' AND SAVE_OK = 'DELETE'.
    DELETE TABLE SDYN_ITAB FROM sdyn_sdw4.
    DESCRIBE TABLE SDYN_ITAB LINES TABLE_CONTROL-LINES.
ENDIF.
ENDMODULE.                             " READ_TABLE_CONTROL INPUT
*&      Module USER_COMMAND_0100 INPUT
      text
MODULE USER_COMMAND_0100 INPUT.
SAVE_OK = OK_CODE.
CLEAR OK_CODE.
CASE SAVE_OK.
    WHEN 'SORT'.
      DATA: FLDNAME(100),HELP(100).
      READ TABLE TABLE_CONTROL-COLS INTO COL WITH KEY SELECTED = 'X'.
      SPLIT COL-SCREEN-NAME AT '-' INTO HELP FLDNAME.
      SORT SDYN_ITAB BY (FLDNAME).
ENDCASE.
ENDMODULE.                             " USER_COMMAND_0100 INPUT
*&      Module EXIT INPUT
      text
MODULE EXIT INPUT.
LEAVE PROGRAM.
ENDMODULE.                 " EXIT INPUT
Regards,
Bhaskar

Get Current SQL in Before delete trigger

Hi,
I have created a before delete trigger to track which records are deleted from a table I need to know what statements fires the trigger. can someone please describe how I can retrieve the current SQL.
using sys_context('userenv','CURRENT_SQL') returns null for CURRENT SQL
Note:
For me the easier is to enable auditing and audit delete on the table however at the moment I cant get a downtime from the business to bounce the database to enable auditing.
CREATE OR REPLACE TRIGGER before_delete BEFORE DELETE
ON AUDIT_TEST_TAB
FOR EACH ROW
DECLARE
v_username varchar2(50);
v_stmt varchar2(255);
v_client_info varchar2(200);
v_os_user varchar2(50);
v_machine varchar2(50);
v_program varchar2(50);
v_module varchar2(50);
v_auth_type varchar2(200);
v_ip_addr varchar2(200);
v_sql_statement VARCHAR2(4000);
BEGIN
SELECT sys_context ('USERENV', 'CURRENT_SQL')
INTO v_sql_statement
FROM dual;
-----------insert into logging table statment ----
end;

A few comments.
Lets assume you run a delete statement that deletes 550 rows from your table. If your trigger is working then the very same statement would be stored 550 times. I think an BEFORE or better an AFTER delete STATEMENT level trigger would be the better choice. Why AFTER? Because if the delete operation fails, for example because of existing child records, then everything is rolled back anyway to the implicit savepoint just before the delete.
So to store the SQL statement the correct trigger would be an AFTER STATEMENT DELETE trigger.
Now what to store: You want the sql statement. You could try to find the cursor/currently running SQL. It might be tricky to separate that from the SQLs that you run to find this out.
It could even be possible to simply save all commands that are in your PGA/Cached cursor area. First find out yur session, then store the SQL_text (first 60 chars) for all the cursors in this session by using v$open_cursor or the first 1000 chars by using v$sql.
Here are a few views that might be helpful. v$session , v$open_cursor, v$sql, v$sqltext, v$sql_bind_data, v$sql_bind_capture, dba_hist_sqltext

Deleting a row from a JTable using a custom TableModel

Before I waste any of your time I would like to go ahead and just say that I have searched through the forum using "delete row from Jtable" as the search keywords and while I have found very closely related issues, they have not solved my problem. I have found code postings by carmickr and his arguments as to why we should use DefaultTableModel instead of having created our own custom TableModel, and while I do agree, I just am not quite confident enough in applying it to my scenario. See I am reading from a file a bunch of Contractor objects and I am stuffing it into an arraylist which I am using in the following code posting to populate my TableModel which the JTable object in the gui then uses.
My problem is that everything works except when I delete and when I delete I understand that the index is changing because I just removed a row from the arraylist object. Suppose I have 33 rows displaying in the GUI. Now after I delete say row #23, the delete function works and dutifuly the row disappears from the table, but if I try to delete a row say...the last row, it does not work and throws me an IndexOutOfBoundsException which totally makes sense. My question is how do I go about fixing it? Do I have to do something with the setRowCount method?
Any help is appreciated.
Cheers,
Surya
* ContractorTableModel.java
* Created on January 12, 2006, 11:59 PM
package code.suncertify.gui;
import java.util.ArrayList;
import java.util.logging.Logger;
import javax.swing.table.AbstractTableModel;
import code.suncertify.db.Contractor;
* @author Surya De
* @version 1.0
public class ContractorTableModel extends AbstractTableModel {
     * The Logger instance. All log messages from this class are routed through
     * this member. The Logger namespace is <code>sampleproject.gui</code>.
    private Logger log = Logger.getLogger("code.gui");
     * An array of <code>String</code> objects representing the table headers.
    private String [] headerNames = {"Record Number", "Contractor Name",
    "Location", "Specialties","Size", "Rate",
    "Owner"};
     * Holds all Contractor instances displayed in the main table.
    private ArrayList <Object> contractorRecords = new ArrayList<Object>(5);
     * Returns the column count of the table.
     * @return An integer indicating the number or columns in the table.
    public int getColumnCount() {
        return this.headerNames.length;
     * Returns the number of rows in the table.
     * @return An integer indicating the number of rows in the table.
    public int getRowCount() {
        return this.contractorRecords.size();
     * Gets a value from a specified index in the table.
     * @param row An integer representing the row index.
     * @param column An integer representing the column index.
     * @return The object located at the specified row and column.
    public Object getValueAt(int row, int column) {
        Object [] temp = (Object[]) this.contractorRecords.get(row);
        return temp[column];
     * Sets the cell value at a specified index.
     * @param obj The object that is placed in the table cell.
     * @param row The row index.
     * @param column The column index.
    public void setValueAt(Object obj, int row, int column) {
        Object [] temp = (Object []) this.contractorRecords.get(row);
        temp [column] = obj;
     * Returns the name of a column at a given column index.
     * @param column The specified column index.
     * @return A String containing the column name.
    public String getColumnName(int column) {
        return headerNames[column];
     * Given a row and column index, indicates if a table cell can be edited.
     * @param row Specified row index.
     * @param column Specified column index.
     * @return A boolean indicating if a cell is editable.
    public boolean isCellEditable(int row, int column) {
        return false;
     * Adds a row of Contractor data to the table.
     * @param specialty
     * @param recNo The record number of the row in question.
     * @param name The name of the contractor.
     * @param location Where the contractor is located
     * @param size Number of workers for the contractor
     * @param rate The contractor specific charge rate
     * @param owner Name of owner
    public void addContractorRecord(int recNo, String name,
            String location, String specialty,
            int size, float rate, String owner) {
        Object [] temp = {new Integer(recNo), name,
        location, specialty, new Integer(size),
        new Float(rate), owner};
        this.contractorRecords.add(temp);
        fireTableDataChanged();
     * Adds a Contractor object to the table.
     * @param contractor The Contractor object to add to the table.
    public void addContractorRecord(Contractor contractor) {
        Object [] temp = {new Integer(contractor.getRecordNumber()),
        contractor.getName(), contractor.getLocation(),
        contractor.getSpecialties(), new Integer(contractor.getSize()),
        new Float(contractor.getRate()), contractor.getCustomerID()};
        this.contractorRecords.add(temp);
        fireTableDataChanged();
     * Deletes a row of Contractor data to the table.
     * @FIXME Now that I deleted a row then I will have to reset the internal structure so that I can delete again
     * @param recNo The record number of the row in question.
    public void deleteContractorRecord(int recNo) {
        contractorRecords.remove(recNo - 1);
        fireTableRowsDeleted(recNo -1, recNo - 1);
}

Wow that was a very quick response. Thanks camickr. I am only trying to delete a single row. I do not know how to go about posting a test program for the code I have posted above because honestly the gui itself is 800 lines of code, and then the file reading class is quite funky in itself. I can maybe email you the entire Netbeans project including code so if you are using Netbeans 5 RC2 you can run the code and see for yourself, but that would not be considerate of me.
See I am trying to delete any row at any time...but only one at a time not multiple rows...so if a user decides to delete row 23 and then tries to delete the last row which happens to be row 33 in my case, my setup should be smart enough to still allow to delete the row.

:NEW cannot be used in After Delete Trigger ?

Hi,
Is there any way to get the :NW.value in the After delete trigger for each row. My requirement is audit log of the end user DML operations along with user Name (HERE THE USER IS NOT THE ORACLE USER, BECAUSE OF THE LARGE NUMBER OF END USERS WE ARE MAINTAINING ONE TABLE TO CREATE USER NAME & PASSWORD, WHEN THE USER LOGIN TO ORACLE FORM SCREEN, ASSIGN THE USER NAME TO GLOBAL VARIABLE) & Action Date.
Here is my code for trigger - It is working fine with INSER & UPDATE but for DELETE User is NULL
CREATE OR REPLACE TRIGGER Tgr_stud_det
AFTER INSERT OR UPDATE OR DELETE ON student_details
FOR EACH ROW
DECLARE
BEGIN
IF Inserting THEN
-------------INSERT VALUE---------------
INSERT INTO Log_student_details
(Seq,
App_User,
Action,
Action_Date,
stud_name,
stud_age,
stud_sex)
VALUES
(stud_sequence.NEXTVAL,
:NEW.App_User,
'INSERT',
SYSDATE,
:NEW.stud_name,
:NEW.stud_age,
:NEW.stud_sex);
-------------DELETE VALUE---------------
ELSIF Deleting THEN
INSERT INTO Log_student_details
(Seq,
App_User,
Action,
Action_Date,
Comment_Up,
stud_name,
stud_age,
stud_sex)
VALUES
(stud_sequence.NEXTVAL,
:OLD.App_User,
'DELETE',
SYSDATE,
NULL,
:OLD.stud_name,
:OLD.stud_age,
:OLD.stud_sex);
ELSIF Updating THEN
-------------UPDATE VALUE---------------
INSERT INTO Log_student_details
(Seq,
App_User,
Action,
Action_Date,
Comment_Up,
stud_name,
stud_age,
stud_sex)
VALUES
(stud_sequence.NEXTVAL,
:NEW.App_User,
'UPDATE',
SYSDATE,
'NEW VALUE',
:NEW.stud_name,
:NEW.stud_age,
:NEW.stud_sex);
INSERT INTO Log_student_details
(Seq,
App_User,
Action,
Action_Date,
Comment_Up,
stud_name,
stud_age,
stud_sex)
VALUES
(stud_sequence.CURRVAL,
:NEW.App_User,
'UPDATE',
SYSDATE,
'OLD VALUE',
:OLD.stud_name,
:OLD.stud_age,
:OLD.stud_sex);
END IF;
EXCEPTION
WHEN OTHERS THEN
NULL;
END Tgr_stud_det;
Thanks in advance.

Rizly,
As i mentioned in the above post, you should remove the references of :old and :new when you are trying to use the global variables. These values are only significant when you the talk about the record in the table.
For the scenario, you explained, your trigger would insert two records....The trigger would be fired twice.. once during the insert and once during the delete. The audit table will have two records indicating both the actions..
Take a look at this example below...I am artificially manufacturing a user id in the package test_pkg and using that in the insert trigger. As i explained above, you dont need the :old and :new references because the user id is not a column in the table . hence the :old and :new references have no relevance.
Also note that, for the delete, I use the :old value and for the insert, I use the :new value.
for update, I assume you want to store the old record and hence used :old (you can of course use :new too..technically.).
I don't have access to a forms environement, but the user id logic should be similar to what I described below.
sql> create table t(
2     id number,
3     name varchar2(20)
4 );
Table created.
sql> create table t_audit
2     ( id number,
3       name varchar2(20),
4       action varchar2(20),
5       user_id varchar2(20)
6 );
Table created.
sql> create or replace package test_pkg as
2      function get_user_id return varchar2;
3 end test_pkg;
4 /
Package created.
sql> create or replace package body test_pkg as
2      function get_user_id return varchar2 is
3      begin
4          return 'USER' || to_char(sysdate,'HH24:MI');
5      end get_user_id;
6 end test_pkg;
7 /
Package body created.
1 create or replace trigger trg_biud_t
2     before insert or update or delete on t
3     for each row
4 begin
5     if INSERTING then
6        insert into t_audit values (:new.id, :new.name, 'INSERT',test_pkg.get_user_i
7     elsif UPDATING then
8        insert into t_audit values (:old.id, :old.name, 'UPDATE',test_pkg.get_user_i
9     elsif DELETING then
10        insert into t_audit values (:old.id, :old.name, 'DELETE',test_pkg.get_user_i
11     end if;
12* end;
sql> /
Trigger created.
sql> select * from t;
no rows selected
sql> select * from t_audit;
no rows selected
sql> insert into t values (100, 'Rajesh');
1 row created.
sql> insert into t values (200,'Kumar');
1 row created.
sql> delete from t where id = 200;
1 row deleted.
sql> commit;
Commit complete.
sql> select * from t
2 /
        ID NAME
       100 Rajesh
sql> select * from t_audit;
        ID NAME                 ACTION               USER_ID
       100 Rajesh               INSERT               USER15:36
       200 Kumar                INSERT               USER15:36
       200 Kumar                DELETE               USER15:37

I want a user to only be able to update/delete the rows they inserted

hi guys,
I have a table 2 users are inserting into. They can also update/delete the rows in the table. However, I do not want them to be able to update/delete the others users row. I only want them to have update/delete at the row level.
how can this be achieved?
thanks

Another idea if you really have just two (or a fixed set of N) users.
Does your table have a generic primary key (PK)?
You could use two (N) sequences having two (N) distinct sets of numbers as e.g user a is using sequences less than 1000000000, the other one values larger or equal to 1000000000.
create sequence <user_a>.pk_seq start with 0;
create sequence <user_b>.pk_seq start with 1000000000;An insert trigger uses <user_a>.pk_seq or <user_b>.pk_seq for generating the PK depending upon the current user for new records.
An update trigger allows updates only, if the PK of the record to be updated is in the range of sequences belonging to the current user.

Problem of deletion of rows in jtable, table refreshing too

Hi,
I have a table with empty rows in the beginning with some custom properties( columns have fixed width...), later user would be adding to the rows to this table and can delete, I've a problem while deleting the rows from table,
When a selected row is deleted the model is also deleting the data but the table(view) is not refreshed.
Actually i'm selecting a cell of a row, then hitting the delete button.
So the model is deleting the information, but i'm not able to c the fresh data in table( especially when the last cell of last row is selectd and hit the delete button, i am getting lots of exception)
Kindly copy the below code and execute it, and let me know,
* AuditPanel.java
* Created on August 30, 2002, 3:05 AM
import javax.swing.*;
import java.awt.*;
import javax.swing.table.*;
import java.awt.event.*;
import javax.swing.event.*;
import java.util.Vector;
* @author yaman
public class AuditPanel extends javax.swing.JPanel {
// These are the combobox values
private String[] acceptenceOptions;
private Vector colNames;
private Color rowSelectionBackground = Color.yellow;
private int rowHeight = 20;
private int column0Width =70;
private int column1Width =96;
private int column2Width =327;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
/** Creates new form AuditPanel */
public AuditPanel() {
public void renderPanel(){
initComponents();
public String[] getAcceptenceOptions(){
return acceptenceOptions;
public void setAcceptenceOptions(String[] acceptenceOptions){
this.acceptenceOptions = acceptenceOptions;
public Vector getColumnNames(){
return colNames;
public void setColumnNames(Vector colNames){
this.colNames = colNames;
public Vector getData(){
Vector dataVector = new Vector();
/*dataVector.add(null);
dataVector.add(null);
dataVector.add(null);
return dataVector;
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
private void initComponents() {
java.awt.GridBagConstraints gridBagConstraints;
jPanel2 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jPanel1 = new javax.swing.JPanel();
jTable1 = new javax.swing.JTable();
setLayout(new java.awt.GridBagLayout());
setBorder(new javax.swing.border.EmptyBorder(0,0,0,0));
jPanel2.setLayout(new java.awt.GridBagLayout());
jPanel2.setBorder(new javax.swing.border.EmptyBorder(0,0,0,0));
jButton1.setText("Add");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
gridBagConstraints.ipadx = 8;
gridBagConstraints.insets = new java.awt.Insets(0, 1, 5, 0);
gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
jPanel2.add(jButton1, gridBagConstraints);
jButton2.setText("Delete");
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 1;
gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST;
jPanel2.add(jButton2, gridBagConstraints);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 2;
gridBagConstraints.gridy = 0;
gridBagConstraints.insets = new java.awt.Insets(0, 5, 0, 0);
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
add(jPanel2, gridBagConstraints);
jPanel1.setLayout(new java.awt.GridBagLayout());
jPanel1.setBorder(new javax.swing.border.BevelBorder(javax.swing.border.BevelBorder.LOWERED, Color.black, Color.gray) );
jTable1.setModel(new javax.swing.table.DefaultTableModel(getData(), getColumnNames()));
// get all the columns and set the column required properties
java.util.Enumeration enum = jTable1.getColumnModel().getColumns();
while (enum.hasMoreElements()) {
TableColumn column = (TableColumn)enum.nextElement();
if( column.getModelIndex() == 0 ) {
column.setPreferredWidth(column0Width);
column.setCellEditor( new ValidateCellDataEditor(true) );
if( column.getModelIndex() == 1) {
column.setPreferredWidth(column1Width);
column.setCellEditor(new AcceptenceComboBoxEditor(getAcceptenceOptions()));
// If the cell should appear like a combobox in its
// non-editing state, also set the combobox renderer
//column.setCellRenderer(new AcceptenceComboBoxRenderer(getAcceptenceOptions()));
if( column.getModelIndex() == 2 ) {
column.setPreferredWidth(column2Width); // width of column
column.setCellEditor( new ValidateCellDataEditor(false) );
jScrollPane1 = new javax.swing.JScrollPane(jTable1);
jScrollPane1.setPreferredSize(new java.awt.Dimension(480, 280));
jTable1.setMinimumSize(new java.awt.Dimension(60, 70));
//jTable1.setPreferredSize(new java.awt.Dimension(300, 70));
//jScrollPane1.setViewportView(jTable1);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTH;
jPanel1.add(jScrollPane1, gridBagConstraints);
gridBagConstraints = new java.awt.GridBagConstraints();
gridBagConstraints.gridx = 0;
gridBagConstraints.gridy = 0;
add(jPanel1, gridBagConstraints);
// set the row height
jTable1.setRowHeight(rowHeight);
// set selection color
jTable1.setSelectionBackground(rowSelectionBackground);
// set the single selection
jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
// avoid table header to resize/ rearrange
jTable1.getTableHeader().setReorderingAllowed(false);
jTable1.getTableHeader().setResizingAllowed(false);
// Table header font
jTable1.getTableHeader().setFont( new Font( jTable1.getFont().getName(),Font.BOLD,jTable1.getFont().getSize() ) );
jButton1.setMnemonic(KeyEvent.VK_A);
// action of add button
jButton1.addActionListener( new ActionListener(){
public void actionPerformed(ActionEvent actionEvent){
// If a button press is the trigger to leave a JTable cell and save the data in model
if(jTable1.isEditing() ){
//System.out.println("table is edition ");
String text=((javax.swing.text.JTextComponent)jTable1.getEditorComponent()).getText();
jTable1.setValueAt(text,jTable1.getSelectedRow(),jTable1.getSelectedColumn()) ;
jTable1.getCellEditor().cancelCellEditing();
// find out total available rows
int totalRows = jTable1.getRowCount();
int cols = jTable1.getModel().getColumnCount();
if( jTable1.getModel() instanceof DefaultTableModel ) {
((DefaultTableModel)jTable1.getModel()).addRow(new Object[cols]);
int newRowCount = jTable1.getRowCount();
// select the first row
jTable1.getSelectionModel().setSelectionInterval(newRowCount-1,newRowCount-1);
jButton2.setMnemonic(KeyEvent.VK_D);
// action of Delete button
jButton2.addActionListener( new ActionListener(){
public void actionPerformed(ActionEvent actionEvent){
int totalRows = jTable1.getRowCount();
// If there are more than one row in table then delete it
if( totalRows > 0){
int selectedOption = JOptionPane.showConfirmDialog(null,"Are you sure you want to delete this audit row?","Coeus", JOptionPane.YES_NO_OPTION);
// if Yes then selectedOption is 0
// if No then selectedOption is 1
if(0 == selectedOption ){
// get the selected row
int selectedRow = jTable1.getSelectedRow();
System.out.println("Selected Row "+selectedRow);
if( selectedRow != -1 ){
DefaultTableModel dm= (DefaultTableModel)jTable1.getModel();
java.util.Vector v1=dm.getDataVector();
System.out.println("BEFOE "+v1);
v1.remove(selectedRow);
jTable1.removeRowSelectionInterval(selectedRow,selectedRow);
System.out.println("After "+v1);
}else{
// show the error message
JOptionPane.showMessageDialog(null, "Please Select an audit Row", "Coeus", JOptionPane.ERROR_MESSAGE);
} // end of initcomponents
class AcceptenceComboBoxRenderer extends JComboBox implements TableCellRenderer {
public AcceptenceComboBoxRenderer(String[] items) {
super(items);
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected) {
setForeground(table.getSelectionForeground());
super.setBackground(rowSelectionBackground);
} else {
setForeground(table.getForeground());
setBackground(table.getBackground());
// Select the current value
setSelectedItem(value);
return this;
class AcceptenceComboBoxEditor extends DefaultCellEditor {
public AcceptenceComboBoxEditor(String[] items) {
super(new JComboBox(items));
} // end editor class
public class ValidateCellDataEditor extends AbstractCellEditor implements TableCellEditor {
// This is the component that will handle the editing of the
// cell value
JComponent component = new JTextField();
boolean validate;
public ValidateCellDataEditor(boolean validate){
this.validate = validate;
// This method is called when a cell value is edited by the user.
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int rowIndex, int vColIndex) {
if (isSelected) {
component.setBackground(rowSelectionBackground);
// Configure the component with the specified value
JTextField tfield =(JTextField)component;
// if any vaidations to be done for this cell
if(validate){
//tfield.setDocument(new JTextFieldFilter(JTextFieldFilter.NUMERIC,4));
tfield.setText( ((String)value));
// Return the configured component
return component;
// This method is called when editing is completed.
// It must return the new value to be stored in the cell.
public Object getCellEditorValue() {
return ((JTextField)component).getText();
// This method is called just before the cell value
// is saved. If the value is not valid, false should be returned.
public boolean stopCellEditing() {
String s = (String)getCellEditorValue();
return super.stopCellEditing();
public void itemStateChanged(ItemEvent e) {
super.fireEditingStopped();
}//end of ValidateCellDataEditor class
public static void main(String args[]){
JFrame frame = new JFrame();
AuditPanel auditPanel = new AuditPanel();
frame.getContentPane().add(auditPanel);
auditPanel.setAcceptenceOptions(new String[]{"Accepted", "Rejected", "Requested"} );
java.util.Vector colVector = new java.util.Vector();
colVector.add("Fiscal Year");
colVector.add("Audit Accepted");
colVector.add("Comment" );
auditPanel.setColumnNames( colVector);
auditPanel.renderPanel();
frame.pack();
frame.show();

Hi,
I've got the solution for it. As when the cursor is in cell of
a row and hit the delete button, the data in that cell is not saved,
So i'm trying to save the data first into the model then firing the action event by doing this ..
jButton2.addActionListener( new ActionListener(){
public void actionPerformed(ActionEvent actionEvent){
// If a button press is the trigger to leave a JTable cell and save the data in model
if(jTable1.isEditing() ){
String text=((javax.swing.text.JTextComponent)jTable1.getEditorComponent()).getText();
jTable1.setValueAt(text,jTable1.getSelectedRow(),jTable1.getSelectedColumn()) ;
jTable1.getCellEditor().cancelCellEditing();
// HERE DO THE DELETE ROW OPERATION
<yaman/>

Advanced Table delete empty rows

Hi
I added logic to add 10 empty rows and to delete the empty rows when the form is submitted. But somehow it only deletes the rows in current screen of the Advanced Table. if there are 15 rows and I click next to go the last 5 and submit the form it deletes only the 5 empty rows but not the other 10 rows in the previous section.
where am I doing wrong?
Thanks
    Row [] row = null;
    ExpAttendeesVORowImpl rowi = null;
    if( expattendeesvoimpl1 != null )
        row = expattendeesvoimpl1.getAllRowsInRange();
        System.out.println("No of items "+row.length);
    for (int i=0;i<row.length;i++)
         pageContext.writeDiagnostics(this, "in loop ", 2);
         rowi = (ExpAttendeesVORowImpl)row;
pageContext.writeDiagnostics(this, " in loop row "+ rowi.getName(), 2);
if((rowi.getName() == null))
pageContext.writeDiagnostics(this, "deleting row"+ rowi.getName(), 2) ;
rowi.remove();
Thanks

you could instead try using:
expattendeesvoimpl1.getFilteredRows("Name", null);

Instead of delete trigger rows deleted

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