添加两列并从另一列中减去

Question

我的数据库表中有三列，即owed，paid和writeoff。在总结paid和writeoff并从owed中减去后，我需要计算未结总数。

owed-(paid+writeoff)

Answer 1

select
  sum(t.owed - (t.paid + t.writeoff)) AS result
from 
  {your_table} t