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特定日期的汇率

[英]Rate of exchange at a specific date

我正在创建下面显示的查询,该查询返回索赔文件的付款/准备金金额。 这个想法是在指定的日期 exch_r."AtDate" 转换为本地货币作为储备。 但是,结果返回的是金额的总和(以欧元为单位),而不是以 Lei 为单位的值的总和。

例如:有 3 欧元储备金(200 欧元;9 欧元;56 欧元),1 欧元储备金(110 雷伊)。

返回的结果是 265 EUR * 4,8567 LEI = 1.287,0255 LEI,无需在转换后添加 110 Lei。 我的结果应该是 1.287,0255 + 110 LEI = 1.397,0255

select d."DAMFileNr", plata_lei
,coalesce(SUM(CASE WHEN d_rez."EID"='10' THEN d_rez."RDAM" ELSE 
           d_rez."RDAM"*exch_r."EXCValue" END),0) as rez_lei
from "DAM" as d
left join "DAMRez" as d_Rez on d."Index"=d_rez."DID"
left join lateral (
    select coalesce(sum(case when d_pay."EID"='10' then d_pay."PAYVal" else
                                d_pay."PAYVal"*exch_p."EXCValue" end),0) as plata_lei
    from "DAMPay" as d_pay
    LEFT JOIN "EXCValues" exch_p ON exch_p."AtDate"=d_pay."PAYDate" and exch_p."EID"=d_pay."EID"
    where d."Index" = d_pay."DID"
) d_pay on true
LEFT JOIN "EXCValues" exch_r ON exch_r."EID"=d_rez."EID"
where exch_r."AtDate"='2020-09-16' and d."DAMFileNr" like 'S/SC/05/2020'
group by d."DAMFileNr", plata_lei
order by d."DAMFileNr"

你能告诉我如何处理这个问题吗? 谢谢

解决了。 我添加了一个新条件: where (d_rez."EID"='10' or exch_r."AtDate"='2020-09-16') 和 d."DAMFileNr" like 'S/SC/05/2020'

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