BOM List demo

select level level_id,

       t.*

  from (select msi1.segment1 farther_item,

               msi1.inventory_item_id farther_item_id,

               msi1.description farther_desc,

               mtr.bill_sequence_id,

               bic.item_num,

               bic.operation_seq_num,

               bic.component_item_id sub_item_id,

               msi2.segment1 sub_item,

               msi2.description sub_desc,

               bic.component_quantity,

               bic.effectivity_date,

               bic.disable_date,

               msi1.item_type farther_item_code,

               fcl1.meaning farther_item_type,

               msi2.item_type sub_item_code,

               fcl2.meaning sub_item_type

          from bom_bill_of_materials    mtr,

               mtl_system_items_b       msi1,

               fnd_common_lookups fcl1,

               bom_inventory_components bic,

               mtl_system_items_b       msi2,

               fnd_common_lookups fcl2

         where mtr.assembly_item_id = msi1.inventory_item_id

           and mtr.bill_sequence_id = bic.bill_sequence_id

           and bic.component_item_id = msi2.inventory_item_id

           and fcl1.lookup_type = 'ITEM_TYPE'

           and fcl1.lookup_code = msi1.item_type

           and fcl2.lookup_type = 'ITEM_TYPE'

           and fcl2.lookup_code = msi2.item_type

           and msi1.inventory_item_status_code = 'Active'

           and msi2.inventory_item_status_code = 'Active'

           and msi2.organization_id = 190

           and mtr.organization_id = 190

           and msi1.organization_id = 190

           and bic.effectivity_date <= sysdate

           and nvl(bic.disable_date,sysdate+1) > sysdate          

           ) t

connect by prior t.sub_item = t.farther_item

 start with t.farther_item =  '8903600-00-010';