Data is not populated in Dimension as per Hierarchy

Question

Hi All,
I have a table DIM_ITEM with following structure,
ITEM_KEY      NUMBER(10,0)
ITEM_NAME     VARCHAR2(50 BYTE)
ITEM_SHORT_NAME     VARCHAR2(25 BYTE)
ITEM_CATEGORY     VARCHAR2(50 BYTE)
ITEM_TYPE      VARCHAR2(50 BYTE)
ITEM_BRAND     VARCHAR2(50 BYTE)Below is the data populated
insert into dim_item values (1, 'Samsung 42 LED Television', 'Sam 42 LED', 'Electronic', 'Television', 'Samsung');
insert into dim_item values (2, 'Samsung 530L Double Door Refrigerator', 'Sam 530L DD Ref', 'Electronic', 'Refrigerator', 'Samsung');
insert into dim_item values (3, 'Samsung 32 LED Television', 'Sam 32 LED', 'Electronic', 'Television', 'Samsung');
insert into dim_item values (4, 'Samsung 57 LED Television', 'Sam 57 LED', 'Electronic', 'Television', 'Samsung');
insert into dim_item values (5, 'Samsung 75 LED Television', 'Sam 75 LED', 'Electronic', 'Television', 'Samsung');
insert into dim_item values (6, 'Sony 32 LCD Television', 'Sam 32 LCD', 'Electronic', 'Television', 'Sony');
insert into dim_item values (7, 'Sony 42 LCD Television', 'Sam 42 LCD', 'Electronic', 'Television', 'Sony');
insert into dim_item values (8, 'Samsung 175L Single Door Refrigerator', 'Sam 175L SD Ref', 'Electronic', 'Refrigerator', 'Samsung');
insert into dim_item values (9, 'Samsung 230L Double Door Refrigerator', 'Sam 230L DD Ref', 'Electronic', 'Refrigerator', 'Samsung');
insert into dim_item values (10, 'Samsung 230L Single Door Refrigerator', 'Sam 230L SD Ref', 'Electronic', 'Refrigerator', 'Samsung');
insert into dim_item values (11, 'Whirlpool 530L Double Door Refrigerator', 'WP 530L DD Ref', 'Electronic', 'Refrigerator', 'Whirlpool');
insert into dim_item values (12, 'Whirlpool 1110L Double Door Refrigerator', 'WP 1110L DD Ref', 'Electronic', 'Refrigerator', 'Whirlpool');
insert into dim_item values (13, 'Royal 3+2 Sofa Set', 'Ryl 3+2 sofa', 'Furniture', 'Sofa', 'Royal');
insert into dim_item values (14, 'Royal 4+4 Sofa Set', 'Ryl 4+4 sofa', 'Furniture', 'Sofa', 'Royal');
insert into dim_item values (15, 'TMT 3+2 Sofa Set', 'tmt 3+2 sofa', 'Furniture', 'Sofa', 'TMT');
insert into dim_item values (16, 'TMT 4+4 Sofa Set', 'tmt 4+4 sofa', 'Furniture', 'Sofa', 'TMT');
insert into dim_item values (17, 'TMT 4 Person Dinning Table', 'tmt 4P DT', 'Furniture', 'Dinning', 'TMT');
insert into dim_item values (18, 'TMT 10 Person Dinning Table', 'tmt 10P DT', 'Furniture', 'Dinning', 'TMT');As per this data
Samsung has TV and Refrigerator
Sony has only TV
Whirlpool has only Refrigerator
I have created the Hierarchy in AWM as,
1. All Items
2. Item Category
3. Item Brand
4. Item Type
5. Item Name
When I maintain my Dimension and view the data, it displays as
  - All Items
    - Electronic
      - Samsung
      - Sony
        - Television
          - Samsung 42 LED Television
          - Samsung 32 LED Television
          - Samsung 57 LED Television
          - Samsung 75 LED Television
          - Sony 32 LCD Television
          - Sony 42 LCD Television
      - Whirlpool
        - Refrigerator
          - Samsung 530L Double Door Refrigerator
          - Samsung 175L Single Door Refrigerator
          - Samsung 230L Single Door Refrigerator
          - Samsung 230L Double Door Refrigerator
          - Whirlpool 530L Double Door Refrigerator
          - Whirlpool 1110L Double Door Refrigerator
    FurnitureNothing is there under Samsung. But the expect result is,
  - All Items
    - Electronic
      - Samsung
        - Refrigerator
          - Samsung 530L Double Door Refrigerator
          - Samsung 175L Single Door Refrigerator
          - Samsung 230L Single Door Refrigerator
          - Samsung 230L Double Door Refrigerator
        - Television
          - Samsung 42 LED Television
          - Samsung 32 LED Television
          - Samsung 57 LED Television
          - Samsung 75 LED Television
      - Sony
        - Television
          - Sony 32 LCD Television
          - Sony 42 LCD Television
      - Whirlpool
        - Refrigerator
          - Whirlpool 530L Double Door Refrigerator
          - Whirlpool 1110L Double Door Refrigerator
    FurnitureWhen I change the Hierarchy as
1. All Items
2. Item Category
3. Item Type
4. Item Brand
5. Item Name
AWM displays the data as,
  - All Items
    - Electronic
      - Television
        - Samsung
          - Samsung 42 LED Television
          - Samsung 32 LED Television
          - Samsung 57 LED Television
          - Samsung 75 LED Television
          - Samsung 530L Double Door Refrigerator
          - Samsung 175L Single Door Refrigerator
          - Samsung 230L Single Door Refrigerator
          - Samsung 230L Double Door Refrigerator
        - Sony
          - Sony 32 LCD Television
          - Sony 42 LCD Television
      - Refrigerator
        - Whirlpool
          - Whirlpool 530L Double Door Refrigerator
          - Whirlpool 1110L Double Door Refrigerator
    FurnitureBut the result expect for this Hierarchy is,
  - All Items
    - Electronic
      - Television
        - Samsung
          - Samsung 42 LED Television
          - Samsung 32 LED Television
          - Samsung 57 LED Television
          - Samsung 75 LED Television
        - Sony
          - Sony 32 LCD Television
          - Sony 42 LCD Television
      - Refrigerator
        - Whirlpool
          - Whirlpool 530L Double Door Refrigerator
          - Whirlpool 1110L Double Door Refrigerator
        - Samsung
          - Samsung 530L Double Door Refrigerator
          - Samsung 175L Single Door Refrigerator
          - Samsung 230L Single Door Refrigerator
          - Samsung 230L Double Door Refrigerator
    FurnitureWhat exactly I am missing here? Could you please anybody help me on this?
NOTE: Data I used here are just dummy and learning purpose
Thanks & Regards
M Thiyagarajan

Answer 1

The problem is that the definition of parent is ambiguous for some of your members. A good example of this is the member 'Refrigerator', which appears under both Samsung and Whirlpool in your data set. There will only be one member named Refrigerator in the AW, and it can have only one parent. In practice the code is choosing Whirlpool, but my guess is that the choice is arbitrary and you could get different answers each time.
The solution is to make the member have unique names -- "Refrigerator-Samsung" and "Refrigerator-Whirlpool" say. You can do this in the data set itself or in the mapping. To do it in the mapping you could map the "Item_Type" level to an expression like this.
DIM_ITEM.ITEM_TYPE || '-' || DIM_ITEM.ITEM_BRAND(Make sure you clear out the dimension before reloading with the new data since otherwise the old members will remain.)