Blog

_____ exists when different versions of the same data appear in different places.

Character data can contain any character or symbol intended for mathematical manipulation.

Students and classes have a _____ relationship.

_____ is the body of information and facts about a specific subject.

Each row in the relational table is known as an entity instance or entity occurrence in the ER model.

What is the primary key of the ProdOrd table below?    

Date attributes contain calendar dates stored in a special format known as the _____ date format.

One disadvantage of a database system over previous data management approaches is increased costs.

The COUNT function is designed to tally the number of non-null “values” of an attribute, and is often used in conjunction with the DISTINCT clause.

Within the database environment, a data model represents data structures with the purpose of supporting a specific problem domain.