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- select a.id as id, a.name as advertiserName, (ifnull(sum(b.allocate), 0) - ifnull(sum(b.consume), 0)) as adBalance, ifnull(sum(b.allocate), 0) as sumAllocation, max(b.act_time) as upDated from t_adv_balance b,t_advertiser a
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+ select a.id as id, a.name as advertiserName, (ifnull(sum(b.allocate), 0) - ifnull(sum(b.consume), 0)) as adBalance, ifnull(sum(b.allocate), 0) as sumAllocation, max(b.act_time) as upDated from t_advertiser a left join t_adv_balance b
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