MySQL查詢 - 從三個不同的表

Question

我有一個表sRecords了一些數據和與針對每個sRecordID（PK）中的多個行和一個fees列三個不同的表，

問題是
獲取總和的 我怎麼能從sRecordID的所有三張表中獲得sum的總費用？

另外三個表是具有fees和sRecordID（FK sRecords.sRecordID）cFees，oFees和iFees

編輯
我已經有sRecordID，所以我不認爲任何JOIN將要在這裏工作

Answer 1

select t.sRecordID,sum(t1.Fees)+sum(t2.Fees)+sum(t3.Fees) `Sum Fees` 
from sRecords t 
left join cFees t1 on t1.feeid=t.sRecordID 
left join oFees t2 on t2.feeid=t.sRecordID 
left join iFees t3 on t3.feeid=t.sRecordID 
group by t.sRecordID 

Answer 2

SELECT 
    sRecords.sRecordID, 
    SUM(cFees.fees) + SUM(oFees.fees) + SUM(iFees.fees) as total_fees 
FROM sRecords 
LEFT JOIN cFees ON sRecords.sRecordID = cfees.sRecordID 
LEFT JOIN iFees ON sRecords.sRecordID = ifees.sRecordID 
LEFT JOIN oFees ON sRecords.sRecordID = ofees.sRecordID 
GROUP BY sRecords.sRecordID