Answered: Airport Flight Arrive Num State ABC…

Airport Flight Arrive Num State ABC Select one: O a. ERD incorrect O b. The relationship Arrives involves an attribute FlightNum instead of an entity O c. There is no attributes in FlightNum 1.

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 9MC

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Concept explainers

Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.

Question

What is wrong with this ER diagram?
Airport
Arrive
Flight
Num
State
АВС
Select one:
O a. ERD incorrect
O b.
The relationship Arrives involves an attribute FlightNum instead of an entity
O c. There is no attributes in FlightNum
O d. Airport has no key

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