Dynamic creation of column in database table

Can I create columns in a database table dynamically?
Let's say I have two columns in a table. Users requested to have dynamic columns in the table. They wanted to create any no. of fields in the table dynamically. We can't alter the table every now and then. Is there any solution for this. Please let me.
Your early response is highly appreciated.
Thanks

I can't use "Alter" statement every time. User may need to insert any no.of columns dynamically. There is no fixed columns. Right now there are two columns which are static. Somebody said it is durable through XML. Can you please let me know in detail. I haven't not done anything using XML.
Thanks for the response.

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Hi ,
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My idea is to introduce a trigger before update or delete on this table
However , i would like to make it as dynamic as possible
i dont want to use things as below in trigger if possible
1. if ( old.name <> new.name ) then {
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I want things like
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1. select column name and updated value that is updated
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if possible , how to do it ?
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Hi,
Check the link given below
http://download.oracle.com/docs/cd/B10501_01/appdev.920/a96590/adg13trg.htm
and search for
IF UPDATING THEN*009*

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Hi Anil,
plz help me still i am faceing the problem
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if(pageContext.getParameter("Submit")!=null)
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am.invokeMethod("xxinsertpagelogic",params);
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import oracle.apps.fnd.framework.webui.beans.message.OAMessageTextInputBean;
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Error(64,78): incompatible types; found: oracle.apps.fnd.framework.webui.beans.OAWebBean, required: oracle.apps.fnd.framework.webui.beans.message.OAMessageTextInputBean
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Edited by: Latha on Jan 4, 2012 10:00 PM

NULL COLUMN ON DATABASE TABLE

HELLO AGAIN TO EVERYONE AND TO EVERY ONE WHO IS BEEN REPLYING MY MESSAGES,
I AM STIL HAVING PROBLE WITH MY JSP AND FORM(HTML).
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THE CODE ARE PROVIDED BELOW.CAN ANYONE TELL ME WHAT IS HAPPENING BEHIND THE SCENE ON THE NAME COLUMN .I AM NEW TO JSP.
jsp code
try{
Class.forName("com.mysql.jdbc.Driver");
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// String name1 = request.getParameter( "name ");
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//int age2 = Integer.parseInt( request.getParameter("age") );
PreparedStatement stat = conn.prepareStatement(" INSERT INTO student " +
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stat.setInt(1,Integer.parseInt( request.getParameter("id") ));
stat.setString(2, request.getParameter( "name "));
stat.setInt(3,Integer.parseInt( request.getParameter("age") ));
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conn.close();
catch(Exception e)
{e.printStackTrace();}
sample of database table column.
*******************************************************************************mysql> select * from student;
| id | name | age |
| 10 | NULL | 76 |
| 10 | NULL | 76 |
| 9 | NULL | 34 |
| 11 | NULL | 45 |
| 12 | NULL | 23 |
14 rows in set (0.13 sec)
mysql>

First of all, don't use all CAPS when typing, it gets difficult to follow your text! Also try putting your code in [ code ] -tags in the future, it's so much easier to follow code that way.
Looking at your database it appears as if name isn't holding a value when you use it in your database call.
Verify that it *IS holding a value, you can do that by printing it to the console, i.e.
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Change Date Column in database table format from mm/dd/yyyy to dd/mm/yyyy

Hi I use Jdeveloper 11G with an Oracle Database.
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I'm not sure I understand COlumn Type is DATE
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Edited by: Dino2dy on Nov 6, 2012 5:47 AM

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From what you say:
INSERT tbl(col1, col2)
SELECT col1, col1
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Erland Sommarskog, SQL Server MVP, [email protected]
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It is possible to do this in Adobe forms.
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help.adobe.com/en_US/livecycle/es/FormCalc.pdf
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I have an existing table called TUSER. I have mapped some fields, but not
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purposes.
I am using JDK 1.3.1_02, Windows 2000, SQL Server 2000 database, Kodo
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15:33:22 JST 2002 ] ALTER TABLE TUSER ADD Job_Title_ID VARCHAR(255)
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[java] [ connection: 2961925; statement: 8146001; time: Thu Jul 04
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[java] [ connection: 2961925; statement: 1691809; time: Thu Jul 04
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[java] [ connection: 2961925; statement: 5253969; time: Thu Jul 04
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[java] [ connection: 2961925; statement: 4977422; time: Thu Jul 04
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15:33:24 JST 2002 ] ALTER TABLE TUSER DROP COLUMN EMAIL
[java] [ connection: 2961925; statement: 4395840; time: Thu Jul 04
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Is this meant to happen? I am guessing not. Is there a way to tell the
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Thanks in advance.
Kam

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979801 wrote:
Hello experts, I am using oracle 11g database at windows 7.I have to create a sequence object and a table with an auto increment ID column.For this I have created a trigger before insert to select next sequence from a sequence object. It works well but Now I have the current sequence is 7 and there are 6 records inserted in table. Now I delete two records.Thus I have only 5 records in table but my current sequence is still 7.So if I put it in id column then a new record will be inserted in table with 7 ID number after 5th ID number.I want this record should be inserted with 6 Id number. For this I tried to not use sequence object.I tried a pl/sql trigger before insert, which will count the all records in table and after increment i put it in ID column to insertion....Is this a professional way..? thank You regards aaditya
Sequences only guarantee unique numbers. You cannot (and should not) attempt to create gapless sesquences. That's not how oracle works and will not scale to a multi user application.
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Hi Experts,
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My requirement is,
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Edited by: hi2guru on Aug 3, 2010 12:07 PM

Hi Shanthi,
Thanks for replying.
And sorry If i havnt elaborated my requirement.
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Edited by: hi2guru on Aug 3, 2010 12:24 PM

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Hi Team,
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Thanks,
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Dynamic creation of column in database table

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