Question

我有以下的CTE可以很好地工作，但我想计算＆＃34; cl.memb_dim_id＆＃34; by＆＃34; cl.post_date＆＃34;但我不知道该怎么做？当添加计数功能时，我收到一个错误，突出显示＆＃39;行号＆＃39;所以我假设我不能同时订购和组合????

WITH 

DATES AS 
(
select to_date('01-jan-2017') as startdate,to_date('02-jan-2017') as enddate


from dual

),

Claims as (select distinct 
cl.memb_dim_id,
row_number () over (partition by cl.Claim_number order by cl.post_date desc) as uniquerow,
cl.Claim_number,
cl.post_date,
ct.claim_type,
ap.claim_status_desc, 
dc.company_desc,
dff.io_flag_desc,
pr.product_desc,
cl.prov_dim_id,
cl.prov_type_dim_id


from dw.fact_claim cl

inner join dates d
 on 1=1

and cl.post_date >= d.startdate
and cl.post_date <= d.enddate 
and cl.provider_par_dim_id in ('2')
and cl.processing_status_dim_id = '1'
and cl.company_dim_id in ('581','585','586','589','590','591','588','592','594','601','602','603','606','596','598','597','579','599','578','577','573','574','576','575')


left join dw.DIM_CLAIM_STATUS ap
on cl.claim_status_dim_id = ap.claim_status_dim_id

left join dw.dim_claim_type ct 
on cl.claim_type_dim_id = ct.claim_type_dim_id 
and cl.claim_type_dim_id in ('1','2','6','7')

left join dw.DIM_COMPANY dc
on cl.company_dim_id = dc.company_dim_id

left join dw.DIM_IO_FLAG dff
on cl.io_flag_dim_id = dff.io_flag_dim_id

left join dw.dim_product pr
on cl.product_dim_id = pr.product_dim_id

)


Select * from claims where uniquerow ='1'

Answer 1

首先，这有用吗？

count(cl.memb_dim_id) over (partition by cl.Claim_number, cl.post_date) as cnt,

其次，使用select distinct的分析函数很奇怪。

使用row_number函数计算SQL CTE

1 个答案: