Модуль INV — Связь позиции с категорией

SELECT msi.organization_id,
       msi.inventory_item_id,
       msi.segment1,
       msi.description,
       mic.category_set_name,
       mic.segment1,
       mic.segment2
FROM mtl_system_items_vl   msi,
     mtl_org_assign_v      moa,
     mtl_item_categories_v mic
WHERE moa.organization_id = msi.organization_id
      AND moa.inventory_item_id = msi.inventory_item_id
      AND mic.organization_id = msi.organization_id
      AND mic.inventory_item_id = msi.inventory_item_id
      AND moa.assigned_flag = 'Y'
order by msi.organization_id, msi.inventory_item_id;

Модуль INV — Текущее количество для позиции

-- текущее количество на складе
Select moq.organization_id                   as org_id,
       sysdate                               as date_val,
       moq.inventory_item_id                 as item_id,
       msi.segment1                          as item,
       msi.primary_uom_code                  as uom_code,
       sum(moq.primary_transaction_quantity) as actual_qty
       --
  from mtl_onhand_quantities_detail moq,
       mtl_system_items_b           msi
where 1=1
      -- msi
      and msi.inventory_item_id  = moq.inventory_item_id
      and msi.organization_id    = moq.organization_id
group by moq.organization_id ,
         sysdate,
         moq.inventory_item_id,
         msi.segment1,
         msi.primary_uom_code
order by moq.organization_id, moq.inventory_item_id

Модуль PO – Сколько запрошенно по позициям

-- заявка на приобретение
select prl.destination_organization_id as org_id,
       prl.need_by_date                as date_val,
       prl.item_id                     as item_id,
       msi.segment1                    as item,
       msi.primary_uom_code            as uom_code,
       -- запрошенно
       prl.quantity                    as demand_qty
from po_requisition_lines_all   prl,
     po_requisition_headers_all phr,
     mtl_system_items_b         msi
where 1=1
      -- prl
       -- ! ограничиваем период
      and prl.need_by_date  >= trunc(sysdate, 'mm')
      -- phr
      and phr.requisition_header_id = prl.requisition_header_id
      and phr.authorization_status = 'APPROVED' -- утверждённые заявки
      -- msi
      and msi.inventory_item_id  = prl.item_id
      and msi.organization_id    = prl.destination_organization_id
order by prl.destination_organization_id, 
         msi.inventory_item_id, 
         prl.need_by_date

Модуль PO — Сколько заказано по позициям

-- заказы на приобретение
Select pll.ship_to_organization_id as org_id,
       pll.need_by_date            as date_val,
       pla.item_id                 as item_id,
       msi.segment1                as item,
       msi.primary_uom_code        as uom_code,
       -- заказано
       pla.quantity                as ordered_qty
from po_line_locations_all pll,
       po_lines_all          pla,
       po_headers_all        pha,
       mtl_system_items_b    msi
where 1=1
      -- pll
      and pll.po_line_id = pla.po_line_id
       -- ! ограничиваем период
      and pll.need_by_date >= trunc(sysdate, 'mm')
      -- msi
      and msi.inventory_item_id  = pla.item_id
      and msi.organization_id    = pll.ship_to_organization_id
      --  pha
      and pha.po_header_id = pla.po_header_id
      and pha.authorization_status = 'APPROVED' -- только утвержденные ЗП
order by pll.ship_to_organization_id, msi.inventory_item_id, pll.need_by_date

Модуль INV — Приход и расход по позициям

-- транзакции с материалами: расход, приход
select msi.organization_id         as org_id,
       mmt.transaction_date        as date_val,
       msi.inventory_item_id       as item_id,
       msi.segment1                as item,
       msi.primary_uom_code        as uom_code,
       -- приход
       case when mmt.primary_quantity > 0 then mmt.primary_quantity
       end receive_qty,
       -- расход
       case when mmt.primary_quantity < 0 then abs(mmt.primary_quantity)
       end charges_qty
       -- 
from mtl_system_items_b        msi,
     mtl_material_transactions mmt
where 1 = 1
      -- msi 
      and msi.inventory_item_status_code = 'Active'
      -- mmt 
      and mmt.organization_id   = msi.organization_id
      and mmt.inventory_item_id = msi.inventory_item_id
       -- ! ограничиваем период 
      and mmt.transaction_date  >= trunc(sysdate, 'mm')
order by msi.organization_id, msi.inventory_item_id, mmt.transaction_date

Более сложный вариант, с учетом разных типов транзакций:

Связка между плановыми и складскими позициями

SELECT mp.compile_designator as plan_name,
       msc.plan_id,
       msi.organization_id,
       msc.sr_inventory_item_id,
       msi.inventory_item_id,
       msi.segment1,
       msi.description
FROM msc_system_items   msc,
     mtl_system_items_b msi,
     msc_plans          mp
where 1 = 1
     and msi.inventory_item_id = msc.sr_inventory_item_id
     and msi.organization_id   = msc.organization_id
     -- plan
     and mp.plan_id = msc.plan_id
order by  mp.compile_designator,
          msc.plan_id,
          msi.organization_id,
          msi.inventory_item_id