Question

Possible Duplicate:
Hierarchical SQL question

I have below records to maintain. It has parent child relation. I have one table and from that table i am going to build dynamic menu…So it has below type of records. Like a tree..One parent has two sub menu and two sub menu contains two or three menu…So how to manage it by inline query?

Here is my table structure

***ColumnName***
ID
MenuName
ParentID
URL

This will be data

    ID                ParentID
    1                      0
    2                      0
    3                      0
    4                      0
    5                      1
    6                      1
    7                      5
    8                      5
    9                      2

How to create select query to get parent child relation?? if anyone have any idea about this than please help me.

Answer 1

may be this

select t.id
      ,t.ParentID
  from table_name t
 start with t.ParentID = 0
connect by prior t.id = t.ParentID