A set of objects that share a common structure and a common behavior is called:

Related MCQs

• Entity Relationship model consists of collection of basic objects called _________ and relationship among these objects.
• A                  is a logical grouping of database objects, usually to facilitate security, performance, or the availability of database objects such as tables and indexes.
• A ________ is a logical grouping of database objects, usually to facilitate security, performance, or the availability of database objects such as tables and indexes.
• The          connective tests for set membership, where the set is a collection of values produced by a select clause. The           connective tests for the absence of set membership.
• If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has
• A system is in a              state if there exists a set of transactions such that every transaction in the set is waiting for another transaction in the set.
• There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called
• An                  is a set of entities of the same type that share the same properties, or attributes.
• An ________ is a set of entities of the same type that share the same properties, or attributes.
• View the Exhibit and examine the structure of the EMPLOYEES and DEPARTMENTS tables. Which SET operator would you use in the blank space in the following SQL statement to list the departments where all the employees have managers? SELECT department_id FROM departments ____ SELECT department_id FROM employees WHERE manager_id IS NULL;