一张表的某列值为另一张表的某列值之和

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SELECT t1.contractNo,t1.name,t1.signatory
,t1.signTime,t1.projectNo,t1.totalPrice
,t3.compuPrice
,t1.deliveryTime,t1.clearingForm,t1.shippingType
,t1.freightDueTo,t1.realDeliveryTime,t1.realClearingForm
,t1.payment,t1.payTime,t1.balance,t1.opAdd,t1.opConfirm
from inf_contract t1,
(SELECT SUM(t2.purchasePrice) AS compuPrice, t2.contractNo FROM list_purchase t2 GROUP BY t2.contractNo) t3
WHERE t1.type = :type
AND t1.contractNo=t3.contractNo
0 0
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