如何处理 SQL 查询中的除以零错误

Question

Running following sql query in sql server.

Select id, description, cost, price, ((price-cost)/price) as Margin
from item

I am getting this error message.

Msg 8134, Level 1, State 1, Line 1
Divide by zero error encountered.

Values in price and cost are more than zero even after substraction they are more than zero. Don't understand why I am getting error message.

Answer 1

使用nullif(price,0)

Select id, description, cost, price, (price-cost)/nullif(price,0) as Margin from item

Answer 2

try using NULL Functions
use NULIF(price,0)