Question

如果我运行以下查询：


select  load_cyc_num
,  crnt_dnlq_age_cde
,  sum(cc_min_pymt_amt) as min_pymt
,  sum(ec_tot_bal) as budget
,  case when ec_tot_bal > 0 then 'Y' else 'N' end as budget
,  case when ac_stat_cde in ('A0P','A1P','ARP','A3P') then 'Y' else 'N' end as arngmnt
,  sum(sn_close_bal) as st_bal
from  statements
where  (sn_close_bal > 0 or ec_tot_bal > 0)
and  load_cyc_num in (200911)
group by  load_cyc_num
,  crnt_dnlq_age_cde
,  case when ec_tot_bal > 0 then 'Y' else 'N' end 
,  case when ac_stat_cde in ('A0P','A1P','ARP','A3P') then 'Y' else 'N' end

然后我得到了正确的“BUDGET”分组，但没有正确的“ARRANGEMENT”分组，只有两行有“Y”。

如果我改变GROUP BY中case语句的顺序，那么我得到正确的分组（两列的完整Y-N细分）。

我错过了一些明显的东西吗？

Answer 1

尝试移动

，总和（cc_min_pymt_amt）为min_pymt，sum（ec_tot_bal）为预算

到select语句的末尾，即

    select  load_cyc_num,  
crnt_dnlq_age_cde,  
case when ec_tot_bal > 0 then 'Y' else 'N' end as budget,  
case when ac_stat_cde in ('A0P','A1P','ARP','A3P') then 'Y' else 'N' end as arngmnt,  
sum(sn_close_bal) as st_bal, 
sum(cc_min_pymt_amt) as min_pymt,  
sum(ec_tot_bal) as budget
    from  statements
where  (sn_close_bal > 0 or ec_tot_bal > 0)and  load_cyc_num in (200911)
group by  load_cyc_num,  
crnt_dnlq_age_cde,  
case when ec_tot_bal > 0 then 'Y' else 'N' end ,  
case when ac_stat_cde in ('A0P','A1P','ARP','A3P') then 'Y' else 'N' end

Odd GROUP BY输出DB2 - 结果不符合预期

1 个答案: