Question

以下是给我错误的查询：

如果使用edg_trace_id加入ed_temp和ed_indv_counters。
如果Ed_eligiblity将current_elig_ind作为'P'，则取其他edg_trace_id，将edg_trace_id与current_elig_ind'A'一起使用。

查询：

select distinct
       i.edg_trace_id,
       i.*
from   ed_indv_counters i,
       ed_temp e
where  e.case_num = '720335'   
and    e.payment_beg_dt<'30-JUL-2017' 
and    e.program_cd = 'TF' 
and    e.delete_sw='N' 
and    di_ind='Y'
and    counter_type_cd='TLP'
and    i.edg_trace_id in (
         CASE e.current_elig_ind
         WHEN 'P' then e.edg_trace_id
         ELSE (
           Select e1.edg_trace_id
           from   ed_temp e1
           where  e1.case_num='720335' 
           and    e1.program_cd = 'TF'
           and    e1.delete_sw='N'
           and    e1.current_elig_ind='A'
           and    e1.payment_beg_dt not in (
                    select payment_beg_dt
                    from   ed_temp e2
                    where  e2.current_elig_ind='P'
                    and    e2.case_num='720335'  
                    and    e2.delete_sw='N'
                    and    e2.program_cd = 'TF'
                  )
         )
         END
       )
order by i.counter_begin_dt;

Answer 1

您可以尝试使用UNION ALL和互斥过滤器而不是CASE声明：

select distinct
       i.edg_trace_id,
       i.*
from   ed_indv_counters i,
       ed_temp e
where  e.case_num = '720335'   
and    e.payment_beg_dt < DATE '2017-07-30' -- Use a date literal rather than string 
and    e.program_cd = 'TF' 
and    e.delete_sw='N' 
and    di_ind='Y'
and    counter_type_cd='TLP'
and    i.edg_trace_id in (
         SELECT e.edg_trace_id
         FROM   DUAL
         WHEN   e.current_elig_ind = 'P'
       UNION ALL
         Select e1.edg_trace_id
         from   ed_temp e1
         where  ( e.current_elig_ind <> 'P' OR e.current_elig_ind IS NULL )
         and    e1.case_num='720335'
         and    e1.program_cd = 'TF'
         and    e1.delete_sw='N'
         and    e1.current_elig_ind='A'
         and    e1.payment_beg_dt not in (
                  select payment_beg_dt
                  from   ed_temp e2
                  where  e2.current_elig_ind='P'
                  and    e2.case_num='720335'  
                  and    e2.delete_sw='N'
                  and    e2.program_cd = 'TF'
                )
     )
order by i.counter_begin_dt;

ORA-01427：单行子查询返回多行01427. 00000 - “单行子查询返回多行”

1 个答案: