attempted to return null from a method with a primitive return type

select sum(deposit_amount)
from tb_commission_ib_day

mysql查询时报异常:

attempted to return null from a method with a primitive return type

是因为查询时结果是 null, 需要给默认值

select IFNULL(sum(deposit_amount),0)
from tb_commission_ib_day

标签：primitive,ib,return,attempted,sum,null,tb
来源： https://www.cnblogs.com/-xuzhankun/p/10401434.html