When a negative unary operator is set against a negative value, the returned value is positive (negative_value * negative_value = positive_value). SELECT (DATEPART(day, Order Date) - DATEPART(day, Shipped Date)) FROM Orders WHERE OrderID = '10248' -- Without a unary operator, the value returned is '-12'.
Cystic fibrosis (CF) is a genetic disorder that particularly affects the lungs and digestive system. Kids who have it are more vulnerable to repeated lung infections. Recent high-tech medical advances in drug therapy and genetics are helping children born with CF lead longer and more comfortable lives.
Video: Terms of Pulmonary Fibrosis, Cystic Fibrosis & Lung Cancer This lesson defines and briefly discusses three main lung disorders: pulmonary fibrosis, cystic fibrosis, and lung cancer. You'll learn how about these disorders affect on the lungs and their diagnosis.