Database Handling Composite Attributes Quiz

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary action involved in handling composite attributes?

Combining multiple attributes into one.

Replacing composite attributes with simpler ones.

Removing the composite attribute name and adding its subfields to the table. (correct)

Creating a separate table for each composite attribute.

When handling composite attributes, the subfields are stored in a separate table.

False (B)

What are the two subfields of the composite attribute 'First_Name and Last_Name' mentioned in the content?

First_Name and Last_Name

Which of the following attributes is a primary key in the Patient table?

Patient_ID (A) Signup and view all the answers

The process of handling composite attributes involves removing the ______ and adding its subfields to the table.

composite attribute name Signup and view all the answers

Match the following terms with their corresponding definitions:

Composite attribute = An attribute composed of multiple subfields. Subfield = A component of a composite attribute. Table = A data structure used to store data in rows and columns. Signup and view all the answers

The Name attribute in the Patient table is a composite attribute.

True (A) Signup and view all the answers

What are the attributes in the Doctor table?

Doctor_ID, Name, Specialty, Phone_Number, Email Signup and view all the answers

The Phone_Number attribute in both the Patient and Doctor tables is a ______ attribute.

multi-valued Signup and view all the answers

Match the following attributes to the correct data type:

Patient_ID = Integer Name = String Date_of_Birth = Date Gender = String Phone_Number = String Email = String Specialty = String Signup and view all the answers

Which of the following attributes in the Patient table are not multi-valued?

Email (A), Patient_ID (B), Name (C) Signup and view all the answers

The Doctor_ID attribute in the Doctor table is a foreign key.

False (B) Signup and view all the answers

What are the two attributes in the Patient table that are considered to be composite?

Name Signup and view all the answers

Which table contains a record's date of creation?

Medical_Record (D) Signup and view all the answers

The Appointment table has a foreign key referencing the Patient table.

True (A) Signup and view all the answers

What is the purpose of the foreign key Doctor_ID in the Appointment table?

The Doctor_ID in the Appointment table links each appointment record to the corresponding doctor in the Doctor table. Signup and view all the answers

The ______ table stores the reason for a patient's visit.

Appointment Signup and view all the answers

Match the following table name with the corresponding description:

Patient = Stores information about patients Appointment = Records appointment details Medical_Record = Contains patient's medical records Doctor = Stores information about doctors Signup and view all the answers

Which of the following columns can be found in both the Appointment and Medical_Record tables?

Patient_ID (C) Signup and view all the answers

The 'Treatment_Details' column is a foreign key referencing the 'Patient' Table.

False (B) Signup and view all the answers

How are the 'Appointment' and 'Medical_Record' tables related?

The 'Appointment' and 'Medical_Record' tables are related through the 'Patient_ID' foreign key. This allows associating appointments with a patient's specific medical records. Signup and view all the answers

When handling multi-valued attributes, a separate table is created for each ______.

attribute Signup and view all the answers

Which of the following is an example of a multi-valued attribute?

Phone Number (A) Signup and view all the answers

Creating a separate table for each multi-valued attribute helps reduce data redundancy.

True (A) Signup and view all the answers

Why is it important to handle multi-valued attributes carefully in database design?

Handling multi-valued attributes carefully ensures data integrity, prevents redundancy, and maintains a well-structured database that is efficient to query and manage. Signup and view all the answers

Every table in a database must have a primary key.

True (A) Signup and view all the answers

The primary key for the Doctor table should be based on the unique attribute of ______.

Doctor_ID Signup and view all the answers

Match the following database design concepts with their corresponding descriptions:

Multi-valued Attribute = An attribute that can have multiple values for a single entity Separate Table = A dedicated table created for a multi-valued attribute Data Redundancy = Storing the same data in multiple places in a database Data Integrity = Maintaining the accuracy and consistency of data Signup and view all the answers

What is the purpose of using a primary key in a database table?

A primary key is used to uniquely identify each record in a table. It is crucial for data integrity and helps to prevent duplicate entries. Signup and view all the answers

Match the following database design principles with their descriptions:

Primary Key = A unique identifier for each record in a table. Entity = A person, place, or thing that is represented in a database. Attribute = A characteristic of an entity that describes its properties. Signup and view all the answers

Which of the following is NOT a valid reason for using a primary key in a database?

To store the physical address of a record in the database. (B) Signup and view all the answers

An attribute can be used as a primary key only if it is unique for every record in the table.

True (A) Signup and view all the answers

The process of converting attributes from an ER diagram into columns for a table is called ______.

database normalization Signup and view all the answers

Explain the importance of using unique attributes to create primary keys.

Using unique attributes ensures that each record in a table has a distinct identifier. This prevents data duplication and helps maintain the integrity of the database. Signup and view all the answers

Mapping relationships between entities involves adding ______ keys or creating junction tables.

foreign Signup and view all the answers

Junction tables are used to handle one-to-many relationships between entities.

False (B) Signup and view all the answers

What are the two main methods for mapping relationships between entities?

Adding foreign keys and creating junction tables Signup and view all the answers

Which of these is NOT a type of relationship between entities?

Many-to-many (C) Signup and view all the answers

Match each relationship type with its corresponding description:

One-to-one = Each entity in one table can be associated with at most one entity in the other table. One-to-many = One entity in the first table can be associated with many entities in the second table. Many-to-many = One entity in the first table can be associated with many entities in the second table, and vice versa. Signup and view all the answers

Foreign keys are always stored in the table representing the entity on the 'one' side of a one-to-many relationship.

False (B) Signup and view all the answers

Why would you use a junction table instead of adding foreign keys?

Junction tables are used to represent many-to-many relationships. Signup and view all the answers

A junction table facilitates a ______ relationship between two entities.

many-to-many Signup and view all the answers

Study Notes

Hospital Management System Database Design

Objective: Design a database for managing patient, doctor, treatment, room, guardian, and medical test information. This will be a relational database.

Requirements Analysis

Critical Step: Understanding the system's requirements is crucial for database modeling.
Stakeholder Interaction: Essential to gather input
Process Analysis: Examining current processes helps identify needed functionalities.
Defining Scope: Outlining the key functionalities necessary for the system.

Key Functionalities

Patient Management: Register, update patient information, and record visits.
Doctor Management: Maintain doctor profiles, specialties, schedules, and availability.
Appointment Scheduling: Schedule appointments between patients and doctors.
Medical Records: Store and retrieve patient medical histories.
Billing: Generate bills, manage payments, and insurance details.
Room Management: Assign rooms, manage availability, and types.

ER Diagram Creation

Step-by-Step Approach : - Identify Entities: Patient, Doctor, Appointment, Medical_Record, Prescription, Bill, Room, Department, Medicine, and Insurance. - Identify Attributes and Define Primary Keys for each entity: - Patient: Patient_ID (Primary Key), Name (Composite: First_Name, Last_Name), Date_of_Birth, Gender, Address, etc. - Doctor: Doctor_ID (Primary Key), Name (Composite: First_Name, Last_Name), Specialty, etc. - Appointment: Appointment_ID (Primary Key), Appointment_Date, Appointment_Time, Patient_ID (Foreign Key), Doctor_ID (Foreign Key), Reason_For_Visit. - Medical_Record: Record_ID (Primary Key), Patient_ID (Foreign Key), Diagnosis, Treatment_Details, Record_Date, Doctor_ID, etc. - Prescription: Prescription_ID (Primary Key), Record_ID (Foreign Key), Medicine_ID (Foreign Key), Dosage, Frequency, etc. - Bill: Bill_ID (Primary Key), Patient_ID (Foreign Key), Bill_Date, Amount, Payment_Method, etc. - Room: Room_Number (Primary Key), Room_Type, Availability_Status, Patient_ID (Foreign Key). - Department: Department_ID (Primary Key), Department_Name, Location. - Medicine: Medicine_ID (Primary Key), Medicine_Name, Manufacturer, Price. - Insurance: Insurance_ID (Primary Key), Provider_Name, Policy_Number, Coverage_Details.
Relationships Between Entities:
- One-to-One (1:1): one instance of one entity to only one instance of another entity (e.g., Patient and Room).
- One-to-Many (1:N): one instance of one entity can relate to many of another entity (e.g. Patient and Appointment).
- Many-to-Many (M:N): many instances of one entity can relate to many of another entity (e.g. Prescription and Medicine).
- Relationships were defined for: Patient and Appointment; Doctor and Appointment; Patient and Medical_Record; Doctor and Medical_Record, Medical_Record and Prescription; Patient and Bill; Patient and Room; Patient and Department; Department and Doctor.

Mapping to Relational Schema

Entities to Tables: Each entity in the ER diagram becomes a table in the relational database.
Attribute to Columns: Attributes of each entity defined as columns in the respective table.
Primary Keys: Define a primary key for each table.
Foreign Keys: Use foreign keys to represent relationships between entities.
Sample Table creation statements were provided for all entities.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge about composite attributes in database handling, focusing on key concepts related to primary keys, foreign keys, and data type matching within tables. This quiz covers attributes found in the Patient and Doctor tables, ensuring a thorough understanding of database structure and relationships.

Database Handling Composite Attributes Quiz

Choose a study mode

Podcast

Questions and Answers

What is the primary action involved in handling composite attributes?

When handling composite attributes, the subfields are stored in a separate table.

What are the two subfields of the composite attribute 'First_Name and Last_Name' mentioned in the content?

Which of the following attributes is a primary key in the Patient table?

The process of handling composite attributes involves removing the ______ and adding its subfields to the table.

Match the following terms with their corresponding definitions:

The Name attribute in the Patient table is a composite attribute.

What are the attributes in the Doctor table?

The Phone_Number attribute in both the Patient and Doctor tables is a ______ attribute.

Match the following attributes to the correct data type:

Which of the following attributes in the Patient table are not multi-valued?

The Doctor_ID attribute in the Doctor table is a foreign key.

What are the two attributes in the Patient table that are considered to be composite?

Which table contains a record's date of creation?

The Appointment table has a foreign key referencing the Patient table.

What is the purpose of the foreign key Doctor_ID in the Appointment table?

The ______ table stores the reason for a patient's visit.

Match the following table name with the corresponding description:

Which of the following columns can be found in both the Appointment and Medical_Record tables?

The 'Treatment_Details' column is a foreign key referencing the 'Patient' Table.

How are the 'Appointment' and 'Medical_Record' tables related?

When handling multi-valued attributes, a separate table is created for each ______.

Which of the following is an example of a multi-valued attribute?

Creating a separate table for each multi-valued attribute helps reduce data redundancy.

Why is it important to handle multi-valued attributes carefully in database design?

Every table in a database must have a primary key.

The primary key for the Doctor table should be based on the unique attribute of ______.

Match the following database design concepts with their corresponding descriptions:

What is the purpose of using a primary key in a database table?

Match the following database design principles with their descriptions:

Which of the following is NOT a valid reason for using a primary key in a database?

An attribute can be used as a primary key only if it is unique for every record in the table.

The process of converting attributes from an ER diagram into columns for a table is called ______.

Explain the importance of using unique attributes to create primary keys.

Mapping relationships between entities involves adding ______ keys or creating junction tables.

Junction tables are used to handle one-to-many relationships between entities.

What are the two main methods for mapping relationships between entities?

Which of these is NOT a type of relationship between entities?

Match each relationship type with its corresponding description:

Foreign keys are always stored in the table representing the entity on the 'one' side of a one-to-many relationship.

Why would you use a junction table instead of adding foreign keys?

A junction table facilitates a ______ relationship between two entities.

Study Notes

Hospital Management System Database Design

Requirements Analysis

Key Functionalities

ER Diagram Creation

Mapping to Relational Schema

Studying That Suits You

Related Documents

Description

More Like This

Derived, Composite & Multivalued Attributes Quiz

Primary Mathematics 40: 2D Shapes and Composite Figures

Attributes in Database Management

Composite Risk Management Quiz