Question

原始查询返回259行。修改后，查询返回271行。这十二行是重复的。我怎么能避免这个？谢谢你的帮助!!

查询（修改粗体）：

select "Item", "Expires", "Lot #", "Subinv", "Locator", "Qty", "UOM", "Lead Time"
,(select count(*) from MTL_KANBAN_CARDS_V kb where exp.inventory_item_id = kb.inventory_item_id and kb.card_status_name <> 'Hold') "Kanban Cards (Not On Hold)"
FROM (
SELECT msi.inventory_item_id
,msi.segment1                             "Item"
,mln.expiration_date                      "Expires"
,mln.lot_number                           "Lot #"
,moqd.subinventory_code                   "Subinv"
,mil.segment1                             "Locator"
,sum(moqd.primary_transaction_quantity)   "Qty"
,msi.primary_uom_code                     "UOM"
**,muc.conversion_rate                      "UOM Conversion Rate"**
,msi.FULL_LEAD_TIME                       "Lead Time"

FROM mtl_system_items_b msi 
,mtl_onhand_quantities_detail moqd
,mtl_lot_numbers mln
,mtl_item_locations mil
**,mtl_uom_conversions muc**

WHERE msi.organization_id = 101
AND moqd.inventory_item_id = msi.inventory_item_id
AND moqd.organization_id = msi.organization_id 
**AND muc.inventory_item_id (+) = msi.inventory_item_id**
AND mln.inventory_item_id  = msi.inventory_item_id
AND mln.organization_id = msi.organization_id
AND mln.lot_number = moqd.lot_number
AND mln.expiration_date <= SYSDATE+365
AND mil.organization_id(+) = moqd.organization_id
AND mil.inventory_location_id(+) = moqd.locator_id

GROUP BY msi.inventory_item_id
,msi.segment1
,mln.expiration_date
,mln.lot_number
,moqd.subinventory_code
,mil.segment1 
,msi.primary_uom_code
**,muc.conversion_rate**
,msi.FULL_LEAD_TIME

ORDER BY msi.segment1
,mln.expiration_date
,mln.lot_number) exp

Answer 1

我试着将其表述为答案：

对于13个项目，特定conversion_rate的值不止一个inventory_item_id，这就是为什么在您按mtl_uom_conversions扩展查询后这些额外的行会亮起来。

如果你不想全部拥有它们，你可以......

（1）删除这些副本;我认为这没关系，因为对我来说，似乎数据库中的数据在这种情况下是不一致/冗余的

（2）从group by子句中删除muc.conversion_rate并在（inner）select子句中添加min(muc.conversion_rate);你也可以使用MAX，或者其他什么，但是如果你有更多的值，但只想要一个，你必须决定哪一个： - ）

查询修改后重复行

1 个答案: