[Oracle 8i] Need help pruning branches from a hierarchical query

Question

My problem is that my hierarchical query seems only to trim out the values that don't meet my criteria, but still includes their children. When my query hits a record that does not meet my criteria, I want it to stop there. I've tried including the criteria in just the 'where' clause of the query, and have also put the criteria in the 'connect by' clause as well, but nothing has fixed it. Please keep in mind I'm using Oracle 8i, so I can't use some of the 'nicer' statements for hierarchical queries that they introduced in 9. I'm stuck with 'Start With...Connect By'.
I have sample tables/data that I can post if someone needs to see that to help me, but to start with, here's my current query:
SELECT     *
FROM     (
          SELECT
               LEVEL
          ,     c_bill.comp_part_nbr                     AS     c_part_nbr
          ,     (select c_part.part_desc
               FROM part c_part
               WHERE c_part.part_nbr=c_bill.comp_part_nbr)     AS     c_part_desc
          ,     (SELECT c_part.part_type
               FROM part c_part
               WHERE c_part.part_nbr=c_bill.comp_part_nbr)      AS     c_part_type
          ,     c_bill.qty_per                          AS     c_qty_per_p
          ,     c_bill.qty_per_type                     AS     c_qty_per_type
          ,     (SELECT c_part.qty_on_hand                
               FROM part c_part
               WHERE c_part.part_nbr=c_bill.comp_part_nbr)      AS     c_qty_on_hand
          ,     c_bill.oper_nbr                     AS     rqd_at_op
          ,     c_bill.comp_off_adj                     AS     rqd_offset
          ,     c_bill.bom_doc_nbr                     AS     p_part_nbr
          ,     (SELECT p_part.qty_on_hand
               FROM part p_part
               WHERE p_part.part_nbr=c_bill.bom_doc_nbr)      AS     p_qty_on_hand
          FROM
               BILL c_bill
          WHERE
                         (c_bill.status           =      'RL')           
                    AND     (c_bill.view_code     IN      ('M','G'))     
                    AND     (c_bill.end_eff_dt     >      SYSDATE)      
                    AND     (c_bill.begn_eff_dt     <=      SYSDATE)
          START WITH c_bill.bom_doc_nbr=RPAD(?,25)
          CONNECT BY PRIOR c_bill.comp_part_nbr=c_bill.bom_doc_nbr
          AND     c_bill.view_code     IN     ('M','G')     
          AND     c_bill.status          =     'RL'
          AND      c_bill.end_eff_dt     >     SYSDATE
          AND     c_bill.begn_eff_dt     <=     SYSDATE     
     ) a
WHERE     c_part_type = 'M'

Answer 1

The outside criterion of part_type='M' isn't my problem. Where I'm actually seeing my issue rear its ugly head is in the criterion:
(c_bill.view_code     IN      ('M','G'))What I'll have happen is that one of the children or grandchildren of the part number I'm querying for (my parameter), will be of some view code that's not 'M' or 'G'. In my sample data below, I have a level 4 part that is part of the 'H' view code, which I don't want, nor do I want it's children. However, its child is in the 'G' view code, and my query returns it anyway.
In my sample data below, I'm assuming that the parameter = 'XYZ-100'
CREATE TABLE part
part_nbr     varchar(25) not null,
part_desc     varchar(25) not null,
part_type     char(1) not null,
qty_on_hand     double(13,4) not null
CONSTRAINT part_pk
PRIMARY KEY (part_nbr),
CONSTRAINT check_part_type
CHECK (part_type IN ('M','P','X','Y')),
CONSTRAINT check_qty_on_hand
CHECK (qty_on_hand >= 0)
CREATE TABLE bill
row_added_ts     char(20) not null,
bom_doc_nbr     varchar(25) not null,
comp_part_nbr     varchar(25) not null,
qty_per          double(9,5) not null,
qty_per_type     char(1) not null,
oper_nbr     char(4) not null,
comp_off_adj     double(3,0),
status          char(2),
view_code     char(1) not null,
end_eff_dt     date() not null,
begn_eff_dt     date() not null
CONSTRAINT bill_pk
PRIMARY KEY (row_added_ts),
CONSTRAINT check_qty_per_type
CHECK (qty_per_type IN ('0','1','2','3')),
CONSTRAINT check_status
CHECK (status IN ('IN', 'RL')),
);     Values for those tables:
INSERT INTO part
VALUES ('xyz-1', 'purchased part', 'P', 5);
INSERT INTO part
VALUES ('xyz-2', 'purchased part', 'P', 1);
INSERT INTO part
VALUES ('xyz-3', 'purchased part', 'P', 1);
INSERT INTO part
VALUES ('xyz-3a', 'manufactured part', 'M', 1);
INSERT INTO part
VALUES ('xyz-4', 'purchased part', 'P', 1);
INSERT INTO part
VALUES ('xyz-9-1', 'manufactured part', 'M', 0);
INSERT INTO part
VALUES ('xyz-9a', 'manufactured part', 'M', 0);
INSERT INTO part
VALUES ('raw-1', 'purchased raw material', 'P', 212);
INSERT INTO part
VALUES ('raw-2', 'purchased raw material', 'P', 75.5);
INSERT INTO part
VALUES ('XYZ-100', 'manufactured part', 'M', 0);
INSERT INTO part
VALUES ('(OPEN)', '(not in use)', 'Y', 0);
INSERT INTO part
VALUES ('XYZ-100-1', 'manufactured part', 'M', 0);
INSERT INTO part
VALUES ('XYZ-100-2', 'manufactured part', 'M', 1);
INSERT INTO part
VALUES ('XYZ-100-3', 'manufactured part', 'M', 0);
INSERT INTO part
VALUES ('XYZ-100-4', 'manufactured part', 'M', 2);
INSERT INTO part
VALUES ('XYZ-100-A', 'manufactured part', 'M', 0);
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100','xyz-1',3,'1','****',0,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100','XYZ-100-1',1,'1','****',0,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-1','xyz-1',2,'1','****',1,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-1','XYZ-100-2',3,'1','****',0,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-2','xyz-2',6,'1','****',2,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-2','xyz-4',6,'1','****',2,'IN','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-2','xyz-100-3',1,'1','****',0,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-3','xyz-3',8,'1','****',1,'RL','M','01-Jan-2050','01-Jan-2000');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-3','xyz-3a',8,'1','****',1,'RL','M','01-Jan-2000','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-3','XYZ-100-4',4,'1','****',0,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-3','XYZ-100-A',2,'1','****',2,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008071153100150000','XYZ-100-3','(OPEN)',2,'1','****',0,'RL','E','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008071153100150000','XYZ-100-3','xyz-9-1',2,'1','****',0,'RL','H','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-4','raw-1',8.75,'1','****',0,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008072153100150000','XYZ-100-A','raw-2',3.75,'1','****',0,'RL','M','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008075911100150000','xyz-9-1','xyz-9a',1,'1','****',0,'RL','G','01-Jan-2050','01-Jan-1900');
INSERT INTO bill
VALUES ('2008087711100150000','xyz-9a','raw-2',3.75,'1','****',0,'RL','G','01-Jan-2050','01-Jan-1900');Sample data displayed in table format:
--PART table (from insert statements above)
part_nbr     part_desc          part_type     qty_on_hand
xyz-1           purchased part          P          5
xyz-2           purchased part          P          1
xyz-3           purchased part          P          1
xyz-3a           manufactured part     M          1
xyz-4           purchased part          P          1
xyz-9-1           manufactured part     M          0
xyz-9a           manufactured part     M          0
raw-1           purchased raw material     P          212
raw-2           purchased raw material     P          75.5
XYZ-100           manufactured part     M          0
(OPEN)          (not in use)          Y          0
XYZ-100-1     manufactured part     M          0
XYZ-100-2     manufactured part     M          1
XYZ-100-3     manufactured part     M          0
XYZ-100-4     manufactured part     M          2
XYZ-100-A     manufactured part     M          0
--BILL table (from insert statements above)
row_added_ts          bom_doc_nbr     comp_part_nbr     qty_per     qty_per_type     oper_nbr     comp_off_adj     status     view_code     end_eff_dt     begn_eff_dt
2008072153100150000     XYZ-100          xyz-1          3     1          ****          0          RL     G          01-Jan-2050     01-Jan-1900
2008072223100150000     XYZ-100          XYZ-100-1     1     1          ****          0          RL     M          01-Jan-2050     01-Jan-1900
2008072411100150000     XYZ-100-1     xyz-1          2     1          ****          1          RL     M          01-Jan-2050     01-Jan-1900
2008072459100150000     XYZ-100-1     XYZ-100-2     3     1          ****          0          RL     M          01-Jan-2050     01-Jan-1900
2008072578100150000     XYZ-100-2     xyz-2          6     1          ****          2          RL     M          01-Jan-2050     01-Jan-1900
2008072694100150000     XYZ-100-2     xyz-4          6     1          ****          2          IN     G          01-Jan-2050     01-Jan-1900
2008072786100150000     XYZ-100-2     xyz-100-3     1     1          ****          0          RL     M          01-Jan-2050     01-Jan-1900
2008072865100150000     XYZ-100-3     xyz-3          8     1          ****          1          RL     M          01-Jan-2050     01-Jan-2000
2008073100100150000     XYZ-100-3     xyz-3a          8     1          ****          1          RL     M          01-Jan-2000     01-Jan-1900
2008073159100150000     XYZ-100-3     XYZ-100-4     4     1          ****          0          RL     M          01-Jan-2050     01-Jan-1900
2008073346100150000     XYZ-100-3     XYZ-100-A     2     1          ****          2          RL     M          01-Jan-2050     01-Jan-1900
2008073478100150000     XYZ-100-3     (OPEN)          2     1          ****          0          RL     E          01-Jan-2050     01-Jan-1900
2008073529100150000     XYZ-100-3     xyz-9-1          2     1          ****          0          RL     H          01-Jan-2050     01-Jan-1900
2008073798100150000     XYZ-100-4     raw-1          8.75     1          ****          0          RL     M          01-Jan-2050     01-Jan-1900
2008073811100150000     XYZ-100-A     raw-2          3.75     1          ****          0          RL     M          01-Jan-2050     01-Jan-1900
2008075911100150000     xyz-9-1          xyz-9a          1     1          ****          0          RL     G          01-Jan-2050     01-Jan-1900
2008087711100150000     xyz-9a          raw-2          3.75     1          ****          0          RL     G          01-Jan-2050     01-Jan-1900--What I want to get with my query (branches pruned off my tree)
LEVEL     C_PART_NBR     C_PART_DESC          C_PART_TYPE     C_QTY_PER_P     C_QTY_PER_TYPE     C_QTY_ON_HAND     RQD_AT_OP     RQD_OFFSET     P_PART_NBR     P_QTY_ON_HAND
1     XYZ-100-1     manufactured part     M          1          1          0          ****          0          XYZ-100          0
2     XYZ-100-2     manufactured part     M          3          1          1          ****          0          XYZ-100-1     0
3     xyz-100-3     manufactured part     M          1          1          0          ****          0          XYZ-100-2     1
4     XYZ-100-4     manufactured part     M          4          1          2          ****          0          XYZ-100-3     0
4     XYZ-100-A     manufactured part     M          2          1          0          ****          2          XYZ-100-3     0--What I actually get with my query (includes children of items that don't meet query criteria)
LEVEL     C_PART_NBR     C_PART_DESC          C_PART_TYPE     C_QTY_PER_P     C_QTY_PER_TYPE     C_QTY_ON_HAND     RQD_AT_OP     RQD_OFFSET     P_PART_NBR     P_QTY_ON_HAND
1     XYZ-100-1     manufactured part     M          1          1          0          ****          0          XYZ-100          0
2     XYZ-100-2     manufactured part     M          3          1          1          ****          0          XYZ-100-1     0
3     xyz-100-3     manufactured part     M          1          1          0          ****          0          XYZ-100-2     1
4     XYZ-100-4     manufactured part     M          4          1          2          ****          0          XYZ-100-3     0
4     XYZ-100-A     manufactured part     M          2          1          0          ****          2          XYZ-100-3     0
5     xyz-9a          manufactured part     M          1          1          0          ****          0          xyz-9-1          0Edited by: user11033437 on Jul 30, 2009 7:27 AM (grammar)