Deleting one row from a table view

hi i have one tableview model. At the footer of this tableview there are 2 buttons add and delete. I want that when I press the delete button one row must be deleted. I have written one ondel event.I have to implement the logic inside that.Can anyone help me with the logic?

Hey Sumana,
Check the row of the table view u want to delete.Iterate through all the rows from the top of the Table View and copy it into another new array.While doing so, check whether the row is selected or not.If it is not selected,
then copy the content into the new array and if it selected,skip that particular row and start copying from the next row.proceed till the end of the TableView.At the end initialize this new array to the model of the Table View.u have a Table View with the specified row deleted now.
Anil

Similar Messages

Deleting a row from a table containing CLOB as one of the columns

When i delete a row from a table which contains a CLOB (internal clob) i.e. CLOB or BLOB column, Will the CLOB data will also be deleted ? I understand that what exactly stored in the CLOB column is the clob locator which points to the actual data.
So, when I delete this row, the clob locator will be deleted, but will the actual data what this locator is pointing to is also deleted ??? if not what is the process to delete the data the locator is pointing to when the row containing the locator is deleted ? If this is not happening then the actual data might become an orphan data which nobody has access to, will automatic garbage cleaning occurs on a frequent intravels to delete unaddressed data residing on the database server ?
Thanks in advance for the help, can email me at [email protected] alternatively.
Regards,
Srinivasa C.

Michael,
Thanks very much for your inputs, here are the results i got when i tried the way you explained in your answer, the TRUNCATE command made the actual size back to normal, but the delete is not the same, so, how can i delete the data that a particular clob locator may point to ?
truncate would delete all the rows of the table, which might not serve my purpose, i would like to delete a row and also it's associated clob data from the database! is there anyway to do this ?
is there any limitation on the ool_sample size? i am basically a c++ programmer, i am looking for some function like FREE which would free the allocated memory to the clob once the locator is deleted.
your help is greatly appreciated - Thanks!
:-) Srini.
==========================
My Results:
==========================
SQL> create table sample (
2 id integer primary key,
3 the_data CLOB default empty_clob() )
4 lob (the_data) store as ool_sample;
Table created.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
20K
SAMPLE
10K
SQL> select count(*) from sample;
COUNT(*)
0
SQL> begin
2 for i in 1..1000
3 loop
4 insert into sample values (i, RPAD('some data', 4000) );
5 end loop;
6 end;
7 /
PL/SQL procedure successfully completed.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> delete sample;
1000 rows deleted.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> commit;
Commit complete.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
6420K
SAMPLE
70K
SQL> begin
2 for i in 1..1000
3 loop
4 insert into sample values (i, rpad('some data', 4000));
5 end loop;
6 end;
7 /
PL/SQL procedure successfully completed.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
9616K
SAMPLE
70K
SQL> truncate table sample;
Table truncated.
SQL> select segment_name, round(sum(bytes)/1024, 2) || 'K' as sotrage_consumed
2 from user_segments
3 where segment_name in ('SAMPLE', 'OOL_SAMPLE')
4 group by segment_name;
SEGMENT_NAME
SOTRAGE_CONSUMED
OOL_SAMPLE
20K
SAMPLE
10K

Issue while deleting a row from a table

Dear friends,
i am getting an issue while deleting a row from a table, pls check screen shots , the first screen shot is my table contents
when i delete 2 row , the second row is deleting properly like below screen shot
but i want like below screen shot , Col1 contents should be like pic 1 . could any one pls let me know how to solve this issue.
Thanks
Vijaya

Hi vijaya,
please try this code, it will help you.
DATA : it_rows TYPE wdr_context_element_set,
          wa_rows LIKE LINE OF it_rows.
   DATA lo_nd_table TYPE REF TO if_wd_context_node.
    DATA lt_table TYPE wd_this->elements_table.
   DATA lo_el_table TYPE REF TO if_wd_context_element.
   DATA ls_vbap TYPE wd_this->element_table.
DATA: ld_index TYPE i.
data value TYPE sy-index.
* navigate from <CONTEXT> to <table> via lead selection
   lo_nd_table= wd_context->get_child_node( name = wd_this->wdctx_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
* get element via lead selection
* alternative access via index
* lo_el_table = lo_nd_table->get_element( index = 1 ).
* @TODO handle not set lead selection
   IF lo_el_table IS INITIAL.
   ENDIF.
* navigate from <CONTEXT> to <table> via lead selection
   lo_nd_table = wd_context->get_child_node( name = wd_this->wdctx_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
   lo_nd_table->get_static_attributes_table( IMPORTING table = lt_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
** @TODO compute values
** e.g. call a model function
* navigate from <CONTEXT> to <table> via lead selection
   lo_nd_table = wd_context->get_child_node( name = wd_this->wdctx_table ).
* @TODO handle non existant child
* IF lo_nd_table IS INITIAL.
* ENDIF.
** @TODO compute values
** e.g. call a model function
it_rows = lo_nd_table>get_selected_elements( ).
   CALL METHOD lo_nd_table->GET_LEAD_SELECTION_INDEX
   RECEIVING
     INDEX = value .
LOOP AT it_rows INTO wa_rows.
     CALL METHOD wa_rows->get_static_attributes
       IMPORTING
              static_attributes = ls_table.
     READ TABLE lt_table INTO ls_table WITH KEY col1 = ls_table-col1.
      ld_index = value.
          ENDLOOP.
   CLEAR : ls_table-col2,
         ls_table-col2.
   MODIFY lt_table INDEX ld_index FROM ls_table.
lo_nd_table->bind_table( new_items = lt_table set_initial_elements = abap_true ).

Deleting Multiple Rows From Multiple Tables As an APEX Process

Hi There,
I'm interesting in hearing best practice approaches for deleting multiple rows from multiple tables from a single button click in an APEX application. I'm using 3.0.1.008
On my APEX page I have a Select list displaying all the Payments made and a user can view individual payments by selecting a Payment from the Select List (individual items are displayed below using Text Field (Disabled, saves state) items with a source of Database Column).
A Payment is to be deleted by selecting a custom image (Delete Payments Button) displayed in a Vertical Images List on the same page. The Target is set as the same page and I gave the Request a name of DELETEPAY.
What I tried to implement was creating a Conditional Process On Submit - After Computations and Validations that has a source of a PL/SQL anonymous block as follows:
BEGIN
UPDATE tblDebitNotes d
SET d.Paid = 0
WHERE 1=1
AND d.DebitNoteID = :P7_DEBITNOTEID;
INSERT INTO tblDeletedPayments
( PaymentID,
DebitNoteID,
Amount,
Date_A,
SupplierRef,
Description
VALUES
( :P7_PAYMENTID,
:P7_DEBITNOTEID,
:P7_PAID,
SYSDATE,
:P7_SUPPLIERREF,
:P7_DESCRIPTION
DELETE FROM tblPayments
WHERE 1=1
AND PaymentID = :P7_PAYMENTID;
END;
The Condition Type used was Request = Expression 1 where Expression 1 had a value of DELETEPAY
However this process is not doing anything!! Any insights greatly appreciated.
Many thanks,
Gary.

...the "button" is using a page level Target,...
I'm not sure what that means. If the target is specified in the definition of a list item, then clicking on the image will simply redirect to that URL. You must cause the page to be submitted instead, perhaps by making the URL a reference to the javaScript doSubmit function that is part of the standard library shipped with Application Express. Take a look at a Standard Tab on a sample application and see how it submits the page using doSubmit() and emulate that.
Scott

Deleting a row from parent table

Dear Guru's
I am having two table with parent - child relationship. My problem is when I am deleting a row from parent table the curresponding child row from child table also should be deleted.
My Primary table 'Employee, EMPID Primary key
Child table 'Privilage' inthis EMPID referencing the EMPID of Employee table
My need is when I am deleting a row from parent table the curresponding child row from child table also should be deleted
I issued the SQL query like,
delete from employee where empid='12345' cascade constraints;
Then it showing me error like,
ERROR at line 1:
ORA-00933: SQL command not properly ended
Please resolve my issue , Its Top urgent
Thanks & Cheers
Antony

Choosing How Foreign Keys Enforce Referential Integrity
Oracle Database allows different types of referential integrity actions to be enforced, as specified with the definition of a FOREIGN KEY constraint:
Prevent Delete or Update of Parent Key The default setting prevents the deletion or update of a parent key if there is a row in the child table that references the key. For example:
CREATE TABLE Emp_tab (
FOREIGN KEY (Deptno) REFERENCES Dept_tab);Delete Child Rows When Parent Key Deleted The ON DELETE CASCADE action allows parent key data that is referenced from the child table to be deleted, but not updated. When data in the parent key is deleted, all rows in the child table that depend on the deleted parent key values are also deleted. To specify this referential action, include the ON DELETE CASCADE option in the definition of the FOREIGN KEY constraint. For example:
CREATE TABLE Emp_tab (
    FOREIGN KEY (Deptno) REFERENCES Dept_tab
        ON DELETE CASCADE); Set Foreign Keys to Null When Parent Key Deleted The ON DELETE SET NULL action allows data that references the parent key to be deleted, but not updated. When referenced data in the parent key is deleted, all rows in the child table that depend on those parent key values have their foreign keys set to null. To specify this referential action, include the ON DELETE SET NULL option in the definition of the FOREIGN KEY constraint. For example:
CREATE TABLE Emp_tab (
    FOREIGN KEY (Deptno) REFERENCES Dept_tab
        ON DELETE SET NULL);
SQL> conn scott/tiger
Connected.
SQL> create table ppk ( no number primary key);
Table created.
SQL> begin for inn in 1..10 loop insert into ppk values (inn); end loop; end;
PL/SQL procedure successfully completed.
SQL> create table ffk ( no number references ppk(no));
Table created.
SQL> begin for inn in 1..10 loop insert into ffk values (inn); end loop; end;
PL/SQL procedure successfully completed.
SQL> drop table ppk cascade constraints;
Table dropped.Message was edited by:
user52
Message was edited by:
user52
Message was edited by:
user52

Best practice for deleting multiple rows from a table , using creator

Hi
Thank you for reading my post.
what is best practive for deleting multiple rows from a table using rowSet ?
for example how i can execute something like
delete from table1 where field1= ? and field2 =?
Thank you

Hi,
Please go through the AppModel application which is available at: http://developers.sun.com/prodtech/javatools/jscreator/reference/codesamples/sampleapps.html
The OnePage Table Based example shows exactly how to use deleting multiple rows from a datatable...
Hope this helps.
Thanks,
RK.

Fetching more than one row from a table after selecting one value from the dropdown

Hi Experts,
How can we fetch more than one row from a table after selecting one value from the dropdown.
The scenario is that I have some entries in the dropdown like below
A               B               C
11256          VID          911256
11256          VID          811256
11256          SONY      11256
The 'B' values are there in the dropdown. I have removed the duplicate entries from the dropdown so now the dropdownlist has only two values.for eg- 'VID' and'SONY'. So now, after selecting 'VID' from the dropdown I should get all the 'C' values. After this the "C' values are to be passed to other methods to fetch some data from other tables.
Request your help on this.
Thanks,
Preeetam Narkhede.

Hi Preetam!
I hope I understand your request proberly, since this is more about Java and less about WebDynpro, but if I'm wrong, just follow up on this.
Supposed you have some collection of your original table data stored in variable "origin". Populate a Hashtable using the values from column "B" (let's assume it's Strings) as keys and an ArrayList of whatever "C" is (let's assume String instances, too) as value (there's a lot of ways to iterate over whatever your datasource is, and since we do not know what your datasource is, maybe you'll have to follow another approach to get b and c vaues,but the principle should remain the same):
// Declare a private variable for your Data at the appropriate place in your code
private Hashtable temp = new Hashtable<String, ArrayList<String>>();
// Then, in the method you use to retrieve backend data and populate the dropdown,
// populate the Hashtable, too
Iterator<TableData> a = origin.iterator();
while (a.hasNext()) {
     TableData current = a.next();
     String b = current.getB();
     String c = current.getC();
     ArrayList<String> values = this.temp.get(b);
     if (values == null) {
          values = new ArrayList<String>();
     values.add(c);
     this.temp.put(b, values);
So after this, you'll have a Hashtable with the B values als keys and collections of C values of this particular B as value:
VID --> (911256, 811256)
SONY --> (11256)
Use
temp.keySet()
to populate your dropdown.
After the user selects an entry from the dropdown (let's say stored in variable selectedB), you will be able to retrieve the collection of c's from your Hashtable
// In the metod you handle the selection event with, get the c value collection
//and use it to select from your other table
ArrayList<String> selectedCs = this.temp.get(selectedB);
// now iterate over the selectedCs items and use each of these
//to continue retrieving whatever data you need...
for (String oneC : selectedCs) {
     // Select Data from backend using oneC in the where-Clause or whatever...
Hope that helps
Michael

How to bring the more than one rows from the table into the script

Hi
I have to bring more than one rows from the table into the Main windows of the script. so plz help me out.
Thanks in Advance
Ananya

Hi Ananya,
   Bring more than one row into main window of script.
   For this you need to do some changes for data which you pass to main window.At a time you need to pass more than one row,so for this you need to define one structure.See below code.
Types:begin of ty_rows,
     include structure (your row_structure),
     include structure (your row_sturcture),
Types:end of ty_rows.
for example....
If i need to pass 2 vendor details at a time to main window then the structure should be like this.
Types:begin of ty_rows,
       vendor1 like lfa1-lifnr,
       vendor1_name like lfa1-name1,
       vendor2 like lfa1-lifnr,
       vendor2_name like lfa1-name1,
      end of ty_rows.
Data:i_main type standard table of ty_rows,
     wa_main type ty_rows.
Based on condition you can pass more than one rows of your actual internal table data to i_main internal table.
Then you can pass i_main internal table to your main window.
    I think this will help you.
Cheers,
Bujji

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

Deleting a row from a table control through right-click menu

I have a table control. I want to delete a row from it when a user right clicks on a particular row and selects "Delete row" menu item. I have managed the creation of menu item but have not been able to delete the row which is right clicked and the menu item "Delete row" is selected. Guidance required! Thanks!

smercurio_fc wrote:
It's irrelevant whether the table is a control or indicator. See attached VI.
Hi smercurio,
please see the attached picture. In my previous post i mean the different in the menu. The red marked function is not available, if the table is an indicator. LV8.5!
Mike
Message Edited by MikeS81 on 04-18-2008 05:19 PM
Attachments:
Unbenannt.PNG ‏22 KB

Deleting a row from a table using jsp

Given a table in a jsp, can an user click on a row of that table and retrieve the information so that the program can delete a record from a database table?
most of the tables that I have seen are static, the user cannot interact with them(specially when the user wants to delete several records from a database table).
Can anyone suggests a good book or way of deleting a row from table using jsp.

eg use a column in the table that has a radio button or check box,
on submit, get all the rows that are checked, using the row as an index into your db store, get the key and use the key to issue the sql delete command.

Deleting the Row from the table is not refreshing the contents in the form

Hi,
We developed a table and form in the same UI based on the following suggestion.
Display and edit currently selected row of ADF Table in ADF Form
1. Created one view object based on the employees table.
2. dragged the view object to the UI as table.
3. dragged the view object as form.
4. set partial triggers on the form's container (panelformlayout) as tableId.
Tested the application with the edit options and everything is working fine. But the problem comes when we delete the record from table. it is not refreshing the form based on the newly selected row after deleting the record. If we commit the data the form contents are updated to the selected row (which is not desired).
Can you please suggest how to fix the issue, refreshing the form with the selected row after deleting the records.
Thanks and Regards,
S R Prasad

The Code snippet looks fine. I think, the issue is in the partial trigger setting
4. set partial triggers on the form's container (panelformlayout) as tableId.In order to the table to get refreshed, the table's partialTriggers property should be set to id of the delete Button.
Go to table, select partialTriggers in the Property Inspector, Click on Expression Builder at the right and select the delete Button.
Can you set this and check?
Sample Code:
<af:panelHeader text="panelHeader 1" id="ph1">
<f:facet name="context"/>
<f:facet name="menuBar"/>
<f:facet name="toolbar">
<af:commandButton text="Delete" id="cb1"/>
</f:facet>
<f:facet name="legend"/>
<f:facet name="info">
<af:table var="row" rowBandingInterval="0" id="t1"
partialTriggers="::cb1">
<af:column sortable="false" headerText="col1" id="c1">
<af:outputText value="#{row.col1}" id="ot1"/>
</af:column>
<af:column sortable="false" headerText="col2" id="c4">
<af:outputText value="#{row.col2}" id="ot3"/>
</af:column>
<af:column sortable="false" headerText="col3" id="c3">
<af:outputText value="#{row.col3}" id="ot4"/>
</af:column>
<af:column sortable="false" headerText="col4" id="c5">
<af:outputText value="#{row.col4}" id="ot2"/>
</af:column>
<af:column sortable="false" headerText="col5" id="c2">
<af:outputText value="#{row.col5}" id="ot5"/>
</af:column>
</af:table>
</f:facet>
</af:panelHeader>
Thanks,
Navaneeth

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

Deleting a row from advance table:urgent

Hi All,
I am using Advance table with "Add Another Row" button.Situation is like this, i have an empty row and an exsist row in my Table. Against each row i have a Delete image.Now my problem is, when I am clicking on the Delete image, i am getting the empty row id which is there is the VO cache,not the one against which i have clicked on the Delete image.Please help me to solve this problem.
Thanks in Advance,
Vikram

For the Delete image, why dont you enable a firePartialAction on that and use SPEL binding to pass a unique id (like an <object>_id) as an EVENT PARAM to the Controller. From there on you can pass it to the AM and delete that particular row.
For adding a new row, if you use the default add row feature in the advanced table and set the Insert Rows Automatically property to true, it should take care of inserting the rows by default at the end of your existing rows, without you having to write any code for it.
If, on the other hand, you want to manually add the new row yourself, such as for defaulting some values into the new row, then you might want to explore if insertRowAtRangeIndex will work.

How to delete one row from sequence

Hi,
i have created one table and using sequence for automatically generating id.
i have successfully entered 5 rows....
my problem is when i delete 3rd row, the order is changed like 1,2,4,5 but
i want to get the data order like 1,2,3,4.
Is it possible....plz help me...i am novice to PL/SQL

Hi I totally agree with Satyaki_De's comment, but I still like to give the possible way....which may be trivial....
Please follow the example.
SQL> create table seq1(n number, a char) ;
Table created.
SQL> create sequence seq1seq1
2 start with 1
3 ;
Sequence created.
SQL> insert into seq1 values (seq1seq1.nextval, '&ccc');
Enter value for ccc: a
old 1: insert into seq1 values (seq1seq1.nextval, '&ccc')
new 1: insert into seq1 values (seq1seq1.nextval, 'a')
1 row created.
SQL> /
Enter value for ccc: b
old 1: insert into seq1 values (seq1seq1.nextval, '&ccc')
new 1: insert into seq1 values (seq1seq1.nextval, 'b')
1 row created.
SQL> /
Enter value for ccc: c
old 1: insert into seq1 values (seq1seq1.nextval, '&ccc')
new 1: insert into seq1 values (seq1seq1.nextval, 'c')
1 row created.
SQL> /
Enter value for ccc: d
old 1: insert into seq1 values (seq1seq1.nextval, '&ccc')
new 1: insert into seq1 values (seq1seq1.nextval, 'd')
1 row created.
SQL> /
Enter value for ccc: e
old 1: insert into seq1 values (seq1seq1.nextval, '&ccc')
new 1: insert into seq1 values (seq1seq1.nextval, 'e')
1 row created.
SQL> /
Enter value for ccc: f
old 1: insert into seq1 values (seq1seq1.nextval, '&ccc')
new 1: insert into seq1 values (seq1seq1.nextval, 'f')
1 row created.
SQL> commit ;
Commit complete.
SQL> select * from seq1 ;
N A
1 a
2 b
3 c
4 d
5 e
6 f
6 rows selected.
SQL> delete from seq1 where n = 3 ;
1 row deleted.
SQL> commit;
Commit complete.
SQL> select * from seq1;
N A
1 a
2 b
4 d
5 e
6 f
SQL> update seq1 set n = n -1 where n > 2 ;
3 rows updated.
SQL> select * from seq1 ;
N A
1 a
2 b
3 d
4 e
5 f
SQL> drop sequence seq1seq1 ;
Sequence dropped.
SQL> create sequence seq1seq1 start with 6 ;
Sequence created.
SQL> insert into seq1 values (seq1seq1.nextval, '&ccc')
2 ;
Enter value for ccc: g
old 1: insert into seq1 values (seq1seq1.nextval, '&ccc')
new 1: insert into seq1 values (seq1seq1.nextval, 'g')
1 row created.
SQL> select * from seq1 ;
N A
1 a
2 b
3 d
4 e
5 f
6 g
6 rows selected.
regards
JC

Deleting one row from a table view

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