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.
The Effect of a Defective Gene on the Body. Cystic Fibrosis. Cystic fibrosis (CF) is a chronic, life-shortening disease that occurs as a result of a genetic defect. The defective gene affects the bodyâs ability to transfer water and salt to and from cells that produce sweat, mucus, and digestive enzymes.