SET ROLE. Purpose. Use the SET ROLE statement to enable and disable roles for your current session. You cannot enable more than 148 user-defined roles at one time.
Causes. Most cases of osteomyelitis are caused by staphylococcus bacteria, types of germs commonly found on the skin or in the nose of even healthy individuals.Germs can enter a bone in a variety of ways, including: 1  The bloodstream.auses. Most cases of osteomyelitis are caused by staphylococcus bacteria, types of germs commonly found on the skin or in the nose of even healthy individuals.
Causes of Cheilitis. Cheilitis may be caused by certain medications, environmental conditions, allergies, vitamin deficiencies and yeast infections. List of causes of Cheilitis. Following is a list of causes or underlying conditions (see also Misdiagnosis of underlying causes of Cheilitis) that could possibly cause Cheilitis includes: Contact dermatitis