如果你想返回零，如果发生零分割，你可以使用:

SELECT COALESCE(dividend / NULLIF(divisor,0), 0) FROM sometable

对于每一个为0的除数，结果集中都会得到一个0。

使用where子句过滤数据，这样就不会得到0值。

There is no magic global setting 'turn division by 0 exceptions off'. The operation has to to throw, since the mathematical meaning of x/0 is different from the NULL meaning, so it cannot return NULL. I assume you are taking care of the obvious and your queries have conditions that should eliminate the records with the 0 divisor and never evaluate the division. The usual 'gotcha' is than most developers expect SQL to behave like procedural languages and offer logical operator short-circuit, but it does NOT. I recommend you read this article: http://www.sqlmag.com/Articles/ArticleID/9148/pg/2/2.html

如果你想返回零，如果发生零分割，你可以使用:

SELECT COALESCE(dividend / NULLIF(divisor,0), 0) FROM sometable

对于每一个为0的除数，结果集中都会得到一个0。

你也可以在查询的开头这样做:

SET ARITHABORT OFF 
SET ANSI_WARNINGS OFF

如果你有100/0，它会返回NULL。我只做了简单的查询，所以我不知道它会如何影响更长的/复杂的查询。

在这种情况下，你可以除以0。商业规则是计算库存周转，你用一段时间内的销售成本，按年计算。在你得到年化数字之后，你要除以该时期的平均库存。

I'm looking at calculating the number of inventory turns that occur in a three month period. I have calculated that I have Cost of Goods sold during the three month period of $1,000. The annual rate of sales is $4,000 ($1,000/3)*12. The beginning inventory is 0. The ending inventory is 0. My average inventory is now 0. I have sales of $4000 per year, and no inventory. This yields an infinite number of turns. This means that all my inventory is being converted and purchased by customers.

这是关于如何计算库存周转的业务规则。