FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Entities contain attributes, which are characteristics or modifiers, qualities, amounts, or features. An attribute is a fact or nondecomposable piece of information about an entity. Later, when you represent an entity as a table, its attributes are added to the model as new columns.

Detailed explanation-2: -An entity type typically corresponds to one or several related tables in database. Attribute. A characteristic or trait of an entity type that describes the entity, for example, the Person entity type has the Date of Birth attribute.

Detailed explanation-3: -Characteristic entities provide more information about another table. These entities have the following characteristic. They represent multi-valued attributes. They describe other entities. They typically have a one to many relationship.

Detailed explanation-4: -An important constraint on an entity is the key. The key is an attribute or a group of attributes whose values can be used to uniquely identify an individual entity in an entity set.

Detailed explanation-5: -1 Answer. Explanation: An attribute is a characteristic of an entity.