You have an application domain that consists of Cities, Towns, and Neighborhoods. A City has a name, zip code, state, and a country. A Town has a name, zip code, state, and country. A Neighborhood has a name, coordinate, and population. Using a relational model, what are Students, Courses, and Sections called?Select one:a.Attributesb.Constraintsc.Entitiesd.Relations
Question
You have an application domain that consists of Cities, Towns, and Neighborhoods. A City has a name, zip code, state, and a country. A Town has a name, zip code, state, and country. A Neighborhood has a name, coordinate, and population. Using a relational model, what are Students, Courses, and Sections called?Select one:a.Attributesb.Constraintsc.Entitiesd.Relations
Solution 1
The terms Students, Courses, and Sections in a relational model are referred to as Entities. So, the correct answer is c. Entities.
Solution 2
The terms Students, Courses, and Sections in a relational model are referred to as Entities. So, the correct answer is c. Entities.
Similar Questions
Here we are going to design an Entity Relationship (ER) model for a college database.Say we have the following statements.1. A college contains many departments 2. Each department can offer any number of courses 3. Many instructors can work in a department 4. An instructor can work only in one department 5. For each department there is a Head 6. An instructor can be head of only one department 7. Each instructor can take any number of courses 8. A course can be taken by only one instructor9. A student can enroll for any number of courses 10. Each course can have any number of students From the statements given, the entities are
Course(course_id,sec_id,semester)Here the course_id,sec_id and semester are __________ and course is a _________.OptionsRelations, AttributeAttributes, RelationTuples, SetTuples, Attributes
state the relationships for all the entities
An association of various entities in an Entity-Relation model is known asa.Fieldb.Tuplec.Recordd.Relationship
Which forms has a relation that possesses data about an individual entity:
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