Question

查询是为了查找续订订单

续订是任何学校在上一学年的订单（即total_line_price＆gt; 0），但同一所学校已购买（支付 - 总行价> 0）另一个订单。

明年'08 -01-2016 00:00:00'和'07 -31-2017 00:00:00'-2016

当前年份'08 -01-2015 00:00:00'和'07 -31-2016 00:00:00'-2015

去年'08 -01-2014 00:00:00'和'07 -31-2015 00:00:00' - 2014

下面是我写的查询，不对。需要一些帮助

select 
(school_ucn 
from storiacloud_staging.schl_royl_vw_edw_oms_order 
where school_ucn not in ((select school_ucn
                          from storiacloud_staging.schl_royl_vw_edw_oms_order 
                          where (((start_date between  '08-01-2014 00:00:00' and '07-31-2015 00:00:00') 
                          and (total_line_price >0) ))

                          and in 
                          (select school_ucn
                          from storiacloud_staging.schl_royl_vw_edw_oms_order
                          where ((start_date between '08-01-2015 00:00:00' and '07-31-2016 00:00:00') and ( total_line_price >0))
                          )))

Answer 1

您在查询中使用and in。它应该是and school_ucn in。

始终正确格式化您的查询以便轻松分析。

select school_ucn 
  from storiacloud_staging.schl_royl_vw_edw_oms_order 
 where school_ucn not in (
                          select school_ucn
                          from storiacloud_staging.schl_royl_vw_edw_oms_order 
                          where  start_date between  '08-01-2014 00:00:00' and '07-31-2015 00:00:00' 
                          and    total_line_price >0)
   and school_ucn in (select school_ucn 
                        from storiacloud_staging.schl_royl_vw_edw_oms_order
                       where start_date between '08-01-2015 00:00:00' and '07-31-2016 00:00:00' 
                         and total_line_price >0)

使用Not Exists，您可以按如下方式重写查询。

select school_ucn 
  from storiacloud_staging.schl_royl_vw_edw_oms_order as a
 where start_date between '08-01-2015 00:00:00' and '07-31-2016 00:00:00' 
   and total_line_price >0
   and not exists (select 1 
                     from storiacloud_staging.schl_royl_vw_edw_oms_order as b 
                    where b. school_ucn = a. school_ucn
                      and start_date between  '08-01-2014 00:00:00' and '07-31-2015 00:00:00’
                      and total_line_price >0)

不存在和存在或存在或不存在以查找续订订单

1 个答案: