本文介绍了SQL查询Sum()问题的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我的C#Application中有一个SQLQuery
i have a SQLQuery in my C#Application
select sum(deductions) from Billing
当值存在时,它可以完美工作.
但是,当推导列包含 NULL 值时,我希望它应返回零(0).
请帮助我.
Its working perfectly when values are there.
But when deduction column contains NULL values then I want that it should return zero(0).
Please help me.
推荐答案
select sum(ISNULL(deductions,0)) from Billing
SELECT SUM(ISNULL(deductions, 0)) FROM Billing
select isnull(SUM(deductions),0) from Billing
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