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 entities and entity instances. Entity is a class of person, place, object, event, or concepts about which we need to capture and store data. Entity instance is a single occurrence of an entity. Each occurrence of an entity is described by similar pieces of data.