CLOUD COMPUTING

Detailed explanation-1: -ENTITY: A person, place, object, event, or concept about which the organization wishes to maintain data. Must need to store data. Must have at least two attributes. Must have at least two records.

Detailed explanation-2: -In general, an entity (pronounced N-tih-tee ) is an existing or real thing. The word root is from the Latin, ens, or being, and makes a distinction between a thing’s existence and its qualities. An entity exists and that’s all it needs to do to be an entity.

Detailed explanation-3: -An entity (aka context) describes the setting in which an event has taken place. When an event occurs, it generally involves a number of entities (aka contexts), and takes place in a particular setting.

Detailed explanation-4: -Examples of an entity are a single person, single product, or single organization. Entity type. A person, organization, object type, or concept about which information is stored.

Detailed explanation-5: -Example: Bank Account, etc. Example: If we have a table of a Student (Roll no, Student name, Age, Mobile no) then each student in that table is an entity and can be uniquely identified by their Roll Number i.e Roll no. Note : In E-R model we don’t represent the data but we represent the structure or schema.