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使用$this->db->select('go.OrdNum,go.BuyerID,usb.RealName BuyerRealName,ub.ComNm BuyerComNm,go.SellerID,uss.RealName SellerRealName,us.ComNm SellerComNm,go.SumMoney,go.Payed,go.Payed - go.SumMoney as RefundMoney,go.Payed - go.SumMoney as FinalRefundMoney');
这种方式查询,提示没有计算列字段?应该怎么办? |
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