我有查询，我需要比较按借记贷记分组的金额字段，我想得到贷记金额不等于借记金额的输出查询是
select t_vocno,
sum(t_amt),
dc_type
from accotran
where f_yr = '1718'
and comp_cd = 'skl'
group by t_vocno,
dc_type
order by t_vocno
这给出了输出
1 215452.1600 D
1 215452.1600 C
2 207586.0000 D
2 207586.0000 C
3 248789.0000 D
3 248789.0000 C
我有非常多的出价数据，所以我想设置一个条件并获取借记 <> 贷记的数据
我试过了
select t_vocno,
sum(t_amt),
dc_type
from accotran
where f_yr = '1718'
and comp_cd = 'skl'
group by t_vocno,
dc_type
having case when dc_type= 'c' and t_vocno = t_vocno then sum(t_amt) end <>
case when dc_type= 'd' and t_vocno = t_vocno then sum(t_amt) end
order by t_vocno
你可以GROUP BY只t_vocno和使用条件的聚集来计算信用卡/借记数额：
select t_vocno,
sum(case when dc_type= 'c' then t_amt else 0 end) as c_sum,
sum(case when dc_type= 'd' then t_amt else 0 end) as d_sum
from accotran
where f_yr = '1718'
and comp_cd = 'skl'
group by t_vocno
having sum(case when dc_type= 'c' then t_amt else 0 end) <>
sum(case when dc_type= 'd' then t_amt else 0 end)
order by t_vocno
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