Specify a default value for a column in a Script

Similar Questions

• How can you specify the default value for the undefined array elements

  According to aid LV, the tables have two default values, the normal default value and the default value for the undefined array elements.

  I assume that there must be a way to specify the default value for later, but I can't find it anywhere.  Any ideas?

  I know that you can drag the item out of the table container.  Change the default value on this scalar element.  Then drag the item in table tank.

• function to set a default value for a column that is defined by the user

  Hi all
  
  Can use us the user-defined function to set a default value for a column?
  
  for example:
  

  create or replace  function test1  return number is
  begin 
  return 10;
  end;
  
  
  create table testt
   (id  as test1,
    name varchar2(20));
  
  error:
  ORA-02000: missing ( keyword

  Thank you
  Ashwani

  Ashwani says:

  Can use us the user-defined function to set a default value for a column?

  N °

  A trigger (this function call) can be used to implement such a feature.

• Adding a sequence as a default value for a column in a table field

  Hi all

  APEX 4.2.4. Oracle XE 11.2

  I'm trying to add a default value from a sequence to a column in a table field, so he fills when I hit the "Add Row" button...

  The reason for this by the way, rather than simply using a sequence database and the trigger on the column (which exists and works very well), is that I try also add detail records to the line when I create, and I can not, I do not have the ID of the parent to the child records.

  Looking at the docs, (for example oracle 11 g pl/sql enhancements), I thought I'd have be able to use a PL/SQL expression as to_char (petty_cash_seq. NEXTVAL) or to_number (petty_cash_seq. NEXTVAL) or all that kind of expression that extracts the sequence.nextval, as it became available in PL/SQL on the database

  so, Ive tried

  TO_CHAR (petty_cash_seq. NEXTVAL) in tabular form attributes - column default / PL/SQL expression and he said ORA-02287: unauthorized number sequence here...

  Ive also tried rolling upward in a PL/SQL package, as below:

  DECLARE v_seq_value NUMBER; BEGIN select petty_cash_seq. NEXTVAL in the double v_seq_value; return v_seq_value; END;

  and I get ORA-00923: KEYWORD not found where expected.

  Can anyone help as to why neither of them do not seem to work as an expression / packages in the default type?

  or... a simple alternative to get the ID of the next record when I hit 'Add Row' before I can create child folders at the same time...

  And I've been mulling over the merits of the master / detail integrity and try to think in an orderly manner to create the mask, add the details without having to first submit the master, then go back and go into details... And put it into context, its a request for costs where users create an expense entry and download copies of their expenses at the same time...

  Thank you very much

  Richard

  Use a combination of AJAX and JavaScript to get the next value in the sequence in a version substituted the line Add.

  1. on the page editor, right-click on the Ajax callbacks and select Create.

  2. on the next page, select PL/SQL. Do * not * select the tabular presentation. Leave this field blank.

  3. name your process, e.g. getNextSequence

  4. Add the code (under the DIRECTION of your own names of the object):

  DECLARE
      ln_NextSequence NUMBER := 0;
  BEGIN
      SELECT MY_SEQUENCE.NEXTVAL
      INTO ln_NextSequence
      FROM DUAL;
  
      HTP.P(TO_CHAR(ln_NextSequence));
  END;
  

  5. When you look now, you will see that the button Add a line called javascript:addRow (). Remove all this and change the button to be triggered by a dynamic action.

  6. create a dynamic action when a click on your button to add a line

  7. Add the following JavaScript code to get the new value of the sequence using your AJAX call from above and then place it on the newly added line:

  var nextSequenceID;
  
  apex.server.process(   'getNextSequence'
                       , {}
                       , { dataType: "text",
                           async: false,
                           complete: function( ajaxResponse )
                                    {
                                      nextSequenceID = ajaxResponse.responseText;
                                    }
                         });
  
  addRow();
  
  $('td [headers="YOUR_ID_COLUMN_NAME_HERE"] input:last').val(nextSequenceID);
  

  -Joe

• give a default value for the column prompted

  Hi Experts,
  
  In one of my reports, I have added a filter on a column (values possible col 1 Y or N).
  The application is embedded in a dashboard page that invited to 'col1 '.
  I would like to only when the user does not select anything at the prompt, that value is applied as a filter to the report
  
  Is this possible?
  
  Concerning

  Yes, if in your report, you set col1 = Y then it will return from there until the user selects a different value in the dashboard line. It's a default behavior, on the other hand you don't want him 'Y' to be supplanted by the dash prompt, you would use 'protect the filter' to prevent this behavior.

• Default value for the text in a tabular presentation element

  Hello
  
  I creates a tabular form generated by using a SQL query.
  I would like to first of all the value for a column of nextval deault a sequence when an empty row is added using the add a LINE button
  
  my request currently for the sequence value column when you click on the ADD row button is:
  apex_item.display_and_save (4, NULL) as trans_id,.
  
  I want this column trans_id trans_seq.nextval where trans_seq is a default sequence.
  
  I tried specifying the default value in the column attributes (expression of PL/SQL - trans_seq.nextval) which does not work.
  If I give in the SQL query, it throws an error saying that the unauthorized sequence here...
  
  My query is structured as follows:

  SELECT
  apex_item.display_and_save (4,c002) trans_id
  FROM
  apex_collections
  WHERE collection_name = 'TRANSACTIONS'
  UNION ALL
  SELECT
  apex_item.display_and_save (4,NULL)  as  trans_id
  FROM DUAL
       WHERE :request = 'ADD_ROW_MANUAL'

  Appreciate any help in this regard. I hope that my question is explained clearly
  
  Thanks in advance,
  Dippy
  
  Published by: Fisher on February 16, 2010 12:41
  
  Published by: Fisher on February 16, 2010 15:55

  Hello.

  1. create a function named next_value

  create or replace function next_value
  return number
  is
  ret_value number;
  begin
  select trans_seq.nextval into ret_value from dual;
  return ret_value;
  end;
  

  2 display the query as below

   SELECT
  apex_item.display_and_save (4,c002) trans_id
  FROM
  apex_collections
  WHERE collection_name = 'TRANSACTIONS'
  UNION ALL
  SELECT
  apex_item.display_and_save (4,next_value())  as  trans_id
  FROM DUAL
       WHERE :request = 'ADD_ROW_MANUAL'
  

  Kind regards
  Shijesh

• Form - different default value for each new line needed

  Hi all
  
  I'm a newbie in the APEX and now I am struggling with a problem in the form of tables.
  
  On my page, I report master detail, where the detailed part is created in a table form (I used the Wizard).
  
  Now I want to implement the following:
  
  When I click on the button that adds the line of tabular form, I want to assign the default value for the column 'LOGNO' in my tabular form. Value for this column is table extraction and I this value already stored on the page to display one element 'P210_LOGNO_ACT '.
  
  When I click on the button for one second third etc.) times I would like to set the default for the column LOGNO as LOGNO = P210_LOGNO_ACT + 1.
  
  Y at - it something simple, or is - this difficult to attribute the different value to each new row of tabular form?
  
  Version of the apex 4.1.0.00.32
  
  Thanks in advance!
  
  Jiri

  Inspect your column and find out the name of your column attribute, it must be something like fxx (f01, f02, f03... etc) and use this column instead of f11 (in my case, the name attribute is f11)

  Create a JavaScript function in your page header

  function myaddRow() {
  //perform standard addrow
    addRow();
    //set default value here
  //make sure you replace the P5_X with your page item name
    $s('P5_X',parseInt($v('P5_X'))+1);
    $('input[name="f11"]')[$('input[name="f11"]').length-1].value=$v('P5_X');
  }
  

  Change your button to add a line and call the function above, as shown below

  javascript:myaddRow();
  

  See this example of work http://apex.oracle.com/pls/apex/f?p=46417:5

• How to set the default value of a column from the value of the 2 columns given

  Is it possible to set the default value for a column A, as the concatenated values of columns B and C of the create table statement itself without using the trigger.
  
  for example, in a line, if column B is 'James' and column C is "smith" then the column has must be "james Smith".
  in another line if column B is 'Bob' and column C is "Taylor" then column should be "Bob Taylor"
  
  Thank you
  YG

  Yes, it is possible. But what is your version of the database? Try to use "virtual column. Search for a virtual column in the following link.
  http://www.Oracle.com/technology/pub/articles/Oracle-database-11g-top-features/11g-schemamanagement.html
  http://download.Oracle.com/docs/CD/B28359_01/server.111/b28286/statements_7002.htm

• How to assign a default value to a column?

  Hello
  
  Is it possible to alter a column in order to assign a default value for the column in the object browser?
  
  I have a RECORD of table in which I want to assign a value to 0 by default to a column whose type is NUMBER.
  
  Thank you for your kind replies.
  
  Christian.

  Hello

  In SQL, do something like:

  ALTER TABLE FICHE MODIFY ("Fieldname" NUMBER(n, n) DEFAULT 0 NOT NULL ENABLE)
  

  Replace Fieldname and n, n, as the case

  Andy

• Default values for the tabular report

  Hello
  
  Please forgive me if the answer to my question, there is an obvious place; I have grepped through these forums a little but you do not see a close answer what I'm looking for. My problem is that I have a tabular form and when a user clicks on 'Add the line' I want certain columns of the new line to be pre-filled, but it doesn't seem to be in any way obvious to do. Downhill report attributes don't give me what I'm looking for. I thought that the calculations would be something that would work as well, but no, that does not work either.
  
  What I want to do something fancy in the region Source section and fill in the values of the column it? Or have I missed things completely.
  
  Any help (and heckles) greatly appreciated.
  
  Thank you!
  
  Jon

  Jon:

  You need join "column attributes. Click Edit next to the column that you want a default value. Then, in the section 'Tabular form Element' choose ' PL/SQL expression or a function' for 'Default Type' and specify the default value field "Default". If your default is a string then put the value between "'". ""

  CITY

• How to set the default value for the digital control on front panel?

  How to set a default value for a numeric control of LabVIEW 2009 Front Panel? I have several input values that are actually configuration settings I want to settle with the default values of zero. I want them to be the values displayed when the façade first appears until the code is executed.

  I really want to use the Minimum and Maximum limits by default for this because I still want to be able to define acceptable limits for values.

  I would not be able to specify a default value of zero for these entries?

  Enter the desired value, then "right click...... of default data of value to operations. Save the VI.

• Change the default value of some columns in an oracle 11g table

  I have a table called cust_file, its table consists of a large number of columns (one of these columns called cus_tax) and have a lot of data.

  I use oracle 11g, I want to change the default value of the column cus_tax is equal 1.

  I wrote

  ALTER TABLE cust_file MODIFY (1 by DEFAULT cus_tax).

  
  

  Table changed
  

  
  

  but after I inserted new data to test the operation, I found that the new record has a value = null for the column cus_tax

  
  

  then I tested it using the following query

  
  

  Select data_default in the all_tab_columns where table_name = 'CUST_FILE' and column_name = 'CUS_TAX ';

  no selected line

  
  

  so please help me to change the default value of the cus_tax column.

  
  

  
  

  Thanks for any help.
  

  
  

  
  

  > but after I inserted new data to test the operation, I found that the new record has a value = null for the column cus_tax

  If the INSERT included a NULL value for the column, the GET of a NULL inserted by default substitution.

  SQL > create table hkc_test_10 (id_column number, data_col_1 varchar2 (5), data_col_2 varchar (5));

  Table created.

  SQL > insert into hkc_test_10 values (1, 'First', 'F');

  1 line of creation.

  SQL > select * from hkc_test_10 by 1.

  ID_COLUMN DATA_ DATA_
  ---------- ----- -----
  1 first F

  1 selected line.

  SQL > alter table hkc_test_10 change (data_col_2 default 'TRUE');

  Modified table.

  SQL > insert into hkc_test_10 values (2, 'Second', NULL);

  1 line of creation.

  SQL > select * from hkc_test_10 by 1.

  ID_COLUMN DATA_ DATA_
  ---------- ----- -----
  1 first F
  2 second

  2 selected lines.

  SQL > insert into hkc_test_10 (id_column, data_col_1) values (3, 'Third');

  1 line of creation.

  SQL > select * from hkc_test_10 by 1.

  ID_COLUMN DATA_ DATA_
  ---------- ----- -----
  1 first F
  2 second
  3 third TRUE

  3 selected lines.

  SQL >

  Hemant K Collette

• Default value for the select list of type of form elements

  Hello
  
  I do not work with Apex that mutch, so this may be a simple question... but I still need help.
  I have a form, in this form, I have a question P19_ONTVANGER_ID, this is based on a LOV.
  This LOV is on a table that has a field of username with the value of APP_USER.
  The table looks like:
  ONTVANGER_ID this is the PK and is going to be the return value from the LOV.
  NAME is the display value for the LOV.
  USERID is the column APP_USER.
  
  What users would like to get is that if they create a new record, the default value for the P19_ONTVANGER_ID field is their own ONTVANGER_ID.
  But they must also be able to select another user.
  
  hope there is someone out there that can and will help me.
  
  Kind regards
  
  Rob
  
  APEX 4.0.2 Oracle 10

  Rob-v-M-Gn-Nl wrote:
  Until now, I had, but I need to select the value of the id of the table and the list of selection item appears the corresponding value.

  How can I do this?

  You can select the Type of default value as the body of the PL/SQL function

  and to add something like that

  declare
  v_return number;
  begin
    select your_id
      into v_return
    from your_table
    where some_column = :APP_USER;
   return v_return;
  exception when no_data_found then
   return null;
  end;
  

  http://www.asktheoracle.NET/PLSQL-function.html

• A default value for a textbox

  IM new to apex and this might be a stupid question but...
  
  I have a textbox in a form that has a type of im trying to a unique number im, creating using a sql statement, the value of the default value of this column, but I can't make it work properly!
  
  any ideas?

  Hello

  You can create a calculation, select the Élément Compute and set the Type of calculation in the Query SQL (single return value), and then specify your SQL statement.

  Thank you

  Erick

• How to find if the DEFAULT VALUE of the COLUMN is stored as metadata?

  Hello
  I am using Oracle 11 g enhanced functionality add a COLUMN. Adding new columns with the DEFAULT values and unconstrained NULL is no longer requires that the default value in all existing records.
  Sometimes, we change DB columns not NULL with default with the DEFAULT value null. This operation "materialize" the default for the column.
  Y at - it an easy way (see Dictionary) how to find the default value of the COLUMN is stored as metadata or 'materializes '?
  Thank you. Filip
  
  Version of Oracle RDBMS: Oracle Database 11 g Enterprise Edition Release 11.2.0.3.0 - 64 bit Production

  Look at the table SYS COL$. He has a column called PROPERTY.

  It will have the magic number 1073741824 for columns that have been added by using this new feature...