数据
    
    
    
   
select name, sum(case  when Q>0 then Q end) as A,sum(case when Q<0 then Q end) as B from ttt group by name
    结果
    
    
    
   
 
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    数据
    
    
    
   
select name, sum(case  when Q>0 then Q end) as A,sum(case when Q<0 then Q end) as B from ttt group by name
    结果
    
    