Irritable bowel syndrome or IBS can cause a lower right side abdominal pain, though it usually causes a left lower abdominal pain rather than pain on the right side. IBS is more common in young people between the ages of 13 to 30, and more common in women than in men.
In a Real Application Clusters environment, multiple instances can be associated with a single database service. Clients can override Oracle's connection load balancing by specifying a particular instance by which to connect to the database. INSTANCE_NAME specifies the unique name of this instance. In a single-instance database system, the instance name is usually the same as the database name.
Difference between class and instance variables. Now, it should be clear what the difference between instance and class variables is. Class variables only have one copy that is shared by all the different objects of a class, whereas every object has itâs own personal copy of an instance variable. So, instance variables across different objects can have different values whereas class variables across different objects can have only one value.