Finding the "last node" in a hierarchical query?

I'm presented with an issue - find all parent records for which the "last node" in a hierarchy is not set to some value.
Table structure:
child_id number
parent_id number
type_id number
So, I need to find all parents whose eventual last "children" (could be several levels deep, it varies) do not have a type_id of 29.
I can find the hierarchy easily using connect by prior but I'm stuck on that "last node" bit. Any help out there?

user9937402 wrote:
I'm finding that the CONNECT_BY_ISLEAF is showing all leaves set to 0, even if they themselves are parents (i.e. not the last node in the tree).
Post your code.
I'm not following the 2nd example. Where are you getting those values? This is a really large table, so if that is actual data ... that won't work.Since you did not post data sample, SBH cooked up one on-the-fly using subquery factoring clause - WITH. Below is example on existing table, so I don't need to use WITH:
SQL> select lpad(' ',level*2) || ename ename,
2          connect_by_isleaf
3    from emp
4    start with mgr is null
5    connect by mgr = prior empno
6 /
ENAME                                                                CONNECT_BY_ISLEAF
KING                                                                               0
    JONES                                                                            0
      SCOTT                                                                          0
        ADAMS                                                                        1
      FORD                                                                           0
        SMITH                                                                        1
    BLAKE                                                                            0
      ALLEN                                                                          1
ENAME                                                                CONNECT_BY_ISLEAF
      WARD                                                                           1
      MARTIN                                                                         1
      TURNER                                                                         1
      JAMES                                                                          1
    CLARK                                                                            0
      MILLER                                                                         1
14 rows selected.
SQL> As you can see CONNECT_BY_ISLEAF works as expected.
SY.

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Message was edited by:
cth

On 10g
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Finding the "last node" in a hierarchical query?

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