Parent Child Query

Question

I have records in the table in this format without any sequence
Code Name Parent_Coe
1000 ABC 0
2000 ABC 0
3000 ABC 0
4000 ABC 0
9000 ABC 0
5000 ABC 1000
6000 ABC 5000
7000 ABC 6000
8000 ABC 2000
i want all child come under there parents just like this.
Code Name Parent_Coe
1000 ABC 0
5000 ABC 1000
6000 ABC 5000
7000 ABC 6000
2000 ABC 0
8000 ABC 2000
3000 ABC 0
4000 ABC 0
9000 ABC 0
Query Please???

Answer 1

SQL> ed
Zapisano file afiedt.buf
  1  WITH d AS (
  2   SELECT 1000 c1, 'ABC' c2, 0 c3 FROM dual UNION ALL
  3   SELECT 2000, 'ABC', 0 FROM dual UNION ALL
  4   SELECT 3000, 'ABC', 0 FROM dual UNION ALL
  5   SELECT 4000, 'ABC', 0 FROM dual UNION ALL
  6   SELECT 9000, 'ABC', 0 FROM dual UNION ALL
  7   SELECT 5000, 'ABC', 1000 FROM dual UNION ALL
  8   SELECT 6000, 'ABC', 5000 FROM dual UNION ALL
  9   SELECT 7000, 'ABC', 6000 FROM dual UNION ALL
10   SELECT 8000, 'ABC', 2000 FROM dual)
11  SELECT * FROM d
12   START WITH c3 = 0
13   CONNECT BY PRIOR c1 = c3
14*  ORDER SIBLINGS BY c1
SQL> /
        C1 C2          C3
      1000 ABC          0
      5000 ABC       1000
      6000 ABC       5000
      7000 ABC       6000
      2000 ABC          0
      8000 ABC       2000
      3000 ABC          0
      4000 ABC          0
      9000 ABC          0
9 wierszy zosta│o wybranych.
SQL>