如何替换 Bigquery 中的 Qualify 关键字

Question

BigQuery 中的等价物是什么。我的 TD 查询在下面，我试图形成一个等效的 BQ

select cast(pol.ORDER as int) as target
  from db.porder po
  inner join db_line pol
    on po.po_nbr = pol.po_nbr
    and po.order_date = pol.order_date
qualify row_number() over (partition by po.po_nbr order by po.order_date desc) = 1
  where 
  po.po_nbr = '12345'
  and pol.LINE_NBR = 1

Answer 1

假设您的查询在 TD 中有效 - 在 BQ 中尝试以下

select cast(pol.ORDER as int) as target
  from db.porder po
  inner join db_line pol
    on po.po_nbr = pol.po_nbr
    and po.order_date = pol.order_date
  where 
  po.po_nbr = '12345'
  and pol.LINE_NBR = 1
  qualify row_number() over (partition by po.po_nbr order by po.order_date desc) = 1

在 BQ

中查看 QUALIFY clause

如何替换 Bigquery 中的 Qualify 关键字

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