Build a hierarchical structure from a ordered table

Hi guys,
say I have a table A with 3 columns, each column represents a level in a hierarchical structure. Is it possible to make a recursive query (connect by) to retrieve the info in a hierarchically way?
TABLE A.
COL1 COL2 COL3
1 2 3
1 2 4
1 2 5
The tree I want should be something like:
1
2
3
4
5
Thanks for your help!.

Not really, there was a display problem. What happen is that I want to display a tree in Forms based on the info I have in my table, so the tree(implemented with FTREE) has to look like this:
+1
--+2
----3
----4
----5
As you can see, if the table would be with only 2 columns with an pig ear relationship this would be very easy, however my hierarchy of my table is based on the position of the columns:
COL1 father of COL2
COL2 father of COL3
and so on...
My problem is that I don4t know how the query I have to fill in the Data Query property of my tree has to be.
I tried on Forms forum but didn't get any answer, so I hope you sql guys may give a clue, as I know you're very smart in this area.
Thanks for your sooner input.!

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Trouble with Frank Nimph Building a hierarchical tree from recursive table

I copy the example, but when i run it i get the error:
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Caused by: java.lang.ClassCastException: oracle.jbo.domain.Number at vuo.view.TreeHandler.populateTreeNodes(TreeHandler.java:58)
This is line 58 of TreeHandler.java : employeeNode.setEmployee_id((Number)row.getAttribute("EmployeeId"));
The problem is that i couldn't import oracle.jbo.domain.Number; like in the files TreeHandler.java and GenericTreeNode.java because when i type import oracle.jbo.domain.Number;on my java classes It doesn't compile, in GenericTreeNode does not recongnize:
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private Number manager_id;
private Number salary;
and in TreeHandler it said Number not found.
So i comment the import oracle.jbo.domain.Number; on both classes and compile ok, but when i run the page i get the error:
javax.faces.el.EvaluationException: javax.faces.FacesException: javax.faces.FacesException: Can't instantiate class: 'vuo.view.TreeHandler'.. class vuo.view.TreeHandler : java.lang.ClassCastException: oracle.jbo.domain.Number
So what can i do?
Thanks.

Hi,
as you copied the code, male sure that your classes import statement has oracle.jbo.Number and not java.lang.Number in it. It seems that you try to cast oracle.jbo.Number to java.lang.Number. Note that oracle.jbo.Number requires the ADF Business Component runtime libraries to be selected for the ViewLayer project (see project libraries)
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</SubCategory>
</NormalCategory>
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<NormalCategoryName>NORMAL_B</NormalCategoryName>
<SubCategory>
<SubCategoryName>SUB_A</SubCategoryName>
<ResultDetail><Detail>DETAIL3</Detail></ResultDetail>
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<SubCategory>
<SubCategoryName>SUB_B</SubCategoryName>
<ResultDetail><Detail>DETAIL4</Detail></ResultDetail>
</SubCategory>
</NormalCategory>
</SuperCategory>
</Document>

user563940 wrote:
Hi
I would like to create hierarchical xml from non-relational table as below, can anybody share some idea?
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http://download.oracle.com/docs/cd/E11882_01/server.112/e17118/functions244.htm#SQLRF06169

Hierarchical data structures (in a single table)

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ORG_UNIT
ID
PARENT_ID
NAME
And the JDO mapping for an OrgUnit contains a parent OrgUnit and a
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Simon,
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Alex
"Simon Horne" <[email protected]> wrote in message
news:ag1p9p$9si$[email protected]..
Hi,
If I have a hierarchy of objects stored in a table -
ORG_UNIT
ID
PARENT_ID
NAME
And the JDO mapping for an OrgUnit contains a parent OrgUnit and a
Collection of children.
Is there an efficient way of pulling them out of the database.
It is currently loading each individual parent's kids.
This is going to be pretty slow if there are say 500 OrgUnits in the
database.
If it would be better to pull them all out and build the hierarchy up in
code (as it was being done in straight JDBC). How can I efficiently obtain
the parent or children without doing exactly the same?
Thanks,
Simon

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Edited by: Piet Strydom on May 12, 2009 12:52 PM

Hi,
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you can check the below thread posted by self for further ing
Re: PO item Condition Record number and delivery address of PO - Need a table n
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It's possible to make Hierarchical Tree from multiple tables ?

the famous example for Hierarchical Tree is about employee_id and manager_id field in employees table ............ so I was wondering it's possible to make[b] Hierarchical Tree from multiple tables ? and How ??
if the answer associate with example that will be so kind of you :D
and thanks in advance.

HI
use curose in when new form instance or procedure then u can got data more then one table like that
DECLARE
htree ITEM;
top_node FTREE.NODE;
new_node FTREE.NODE ;
child_node ftree.node ;
item_value VARCHAR2(30);
cursor prime_cur is select main_desc mgr_name, main_code dept
from pur_item_group_mst;
cursor child_cur(v_dept number) is select sub_desc,sub_code
from pur_item_group_dtl where main_code = v_dept ;
BEGIN
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new_node := Ftree.Add_Tree_Node(htree,
ftree.root_node,
Ftree.PARENT_OFFSET,
Ftree.LAST_CHILD,
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Ftree.LAST_CHILD,
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'D:\ORYX_POLYBAGS\next',
child.sub_code);
end loop;
end loop;
END;
Rizwan Shafiq
www.rizwanshafiq.blogspot.com

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Hi,
I have a web service which retrieves data from a database table. I want to use this web service from my Visual Composer to display the data on the screen.
I want to know how to return the table structure from my web service. Currently i am returning a string array (only one row of data) from my web service and displaying it in the VC. But i want to include the names of the columns as well.
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Hi,
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Build a hierarchical structure from a ordered table

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