3. Figure 2 shows an Entity-Relationship (ER) diagram for a University dining servicea) Develop a relational schema.b) Show the functional dependencies.MENUEVENTMenu IDMenu DescriptionMenu TypeEvent IDServed atEvent DateEvent LocationEvent TimeSupervisesContainsDISHWORK SCHEDULESTAFFDish IDStart TimeEmp ID| NameSalary{Skill)Dish NameEnd TimeРrep Time{Ingredient)PositionFigure 2 University dining service

MENU( Menu ID, Menu Desciption, Menu Type) EVENT( Event ID, Event Date, Event Location, Event Time)…

Answered: 3. Figure 2 shows an…

3. Figure 2 shows an Entity-Relationship (ER) diagram for a University dining service a) Develop a relational schema. b) Show the functional dependencies.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: The crow's foot in a diagram a.) is only used to show N:M relationships. b.) shows the relationship…

A: Crow's foot Diagram contains crow foot notation in which the cardinality and modality of the…

Q: When working with database entity relationship modeling, should the cardinality between entities be…

A: Cardinality: The maximum or minimum number of elements allowed on each side of the relationship in…

Q: What type of relationship in the conceptual model is converted to an entity in the logical database…

A: Conceptual ERD models the business objects that should exist in a system and the relationships…

Q: Create an airline database. Customers and their bookings must be kept in the database, as well as…

A: Answer

Q: The following Entity-Relationship diagram has two entity types and one relationship type. There are…

A: The given ERD diagram fails to the capture the following aspects in toto or incompletely or…

Q: List the Entity-Relationship (ER) model's various characteristics.

A: - We need to list the characteristics of Entity-Relationship model.

Q: What distinguishes a weak entity set from a strong entity set?

A: In database design, an entity set is a group of similar entities, such as customers or products. An…

Q: The distinction between a weak and a strong entity collection has to be clarified.

A: In the context of entity collections in a database or data modeling, the distinction between weak…

Q: Give a Relational Model that corresponds to the Entity-Relationship Diagram in Figure 1. You must…

A: Relational Database schema is given below :

Q: The difference between a weak entity set and a strong entity set should be explained.

A: Strong Entity: A powerful entity does not rely on any other entity in the schema for its existence.…

Q: Can you please help me in how I can turn the Entity Relationship diagram into a Logical Database…

A: An Entity-Relationship (ER) diagram is a visual representation of the entities (objects or concepts)…

Q: Design ER diagram to model the online bookstore’s database, in which there are four entities, namely…

A: Design ER diagram to model the online bookstore’s database, in which there are four entities, namely…

Q: Draw ER (or EER) diagram: A conceptual database design for a chain of furniture stores is needed.…

Q: Describe how functional dependencies may be used to show: • There is a many-to-one connection set…

A: Recognizing functional dependencies: The functional dependencies may be used to identify the…

Q: Assume you are a database developer for a company. You were asked to design a database for a…

A: If we convert the given information into Entity Relationship Diagram, the entities present in the…

Q: List the Entity-Relationship (ER) model's various characteristics.

A: Introduction: The Entity-Relationship (ER) model is a conceptual data model used to show how…

Q: Translate the E-R diagram on page 1 (diagram) to database schema using MySQL Workbench (export as…

A: An Entity Relationship (ER) Diagram is a type of flowchart that illustrates how “entities” such as…

Q: 1) Design an Object-Relational geodatabase, E-R diagram, and schema from the following elements.…

Q: Transform an entity-relationship (E-R) diagraminto an equivalent set of well-structured(normalized)…

A: Lets see the solution.

Q: Lab 3: Normalization Assignment: Problem #11 from Chapter #6. (Be sure to note that this is PROBLEM…

A: The relation schema for the table structure is given below, CHARTER (CHAR_TRIP, CHAR_DATE,…

Q: ER model relationships are represented using a.) relationship keys b.) primary keys c.) crows…

A: To find the solution for: ER model relationships are represented using What do the cardinalities…

Q: Consider a relation X with six attributes WYSMFE where WS is a composite primary key for X. Assume X…

A: The handwritten solution is provided below:-

Q: Give a Relational Model that corresponds to the Entity-Relationship Diagram in Figure 1. You must…

A: Entity Relationship diagram mainly contains 3 components, that are Entities, Relationships and…

Q: Explain how functional dependencies can be used to indicate the following:• A one-to-one…

A: The functional dependency is a relationship that exists between two attributes. It typically exists…

Q: PLZ help with the following: Create a Crow’s Foot ERD. Draw YOUR entity relationship diagram (ERD)…

A: Create a Crow’s Foot ERD. Draw YOUR entity relationship diagram (ERD) to indicate entities,…

Concept explainers

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.

Question

3. Figure 2 shows an Entity-Relationship (ER) diagram for a University dining service
a) Develop a relational schema.
b) Show the functional dependencies.
MENU
EVENT
Menu ID
Menu Description
Menu Type
Event ID
Served at
Event Date
Event Location
Event Time
Supervises
Contains
DISH
WORK SCHEDULE
STAFF
Dish ID
Start Time
Emp ID
| Name
Salary
{Skill)
Dish Name
End Time
Рrep Time
{Ingredient)
Position
Figure 2 University dining service

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Converting strong entities into relations

VIEW

Step 2: Converting weak entities into relations

VIEW

Step 3: Converting Multi valued attributes into relational schema

VIEW

Step 4: Converting 1 to 1 relationships into relational schema

VIEW

Step 5: Converting 1 to M or M to 1 relationships into relational schema

VIEW

Step 6 : Converting M to N relationship into relational schema

VIEW

Step 7 : Converting N ary relationship into relational schema

VIEW

Functional dependencies:

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 8 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.

Similar questions

Instructions: The figure below shows an EER diagram for a simplified credit card environment. There are two types of card accounts: debit cards and credit cards. Credit card accounts accumulate charges with merchants. Each charge is identified by the date and time of the charge as well as the primary keys of merchant and credit card. • Develop a relational schema. • Show the functional dependencies. • Develop a set of 3NF relations using an enterprise key. CUSTOMER Customer ID Cust Name Cust Address Holds CARD ACCOUNT MERCHANT Account ID Exp Date Card Type Merch ID Merch Addr Card Type = "D DEBIT CARD Bank No CHARGES Charge Date Charge Time Amount CREDIT CARD Cur Bal
What does an associative entity model? a.) Associative entities model pure relationships rather than entities. b.) Associative entities model entities that are independent. c.) Associative entities model the real-world scenarios of ways to look up data. d.) Associative entities model attributes and how they are linked to entities.
13. An unnormalized table means that: a. it has repeating groups. b. it has partial and transitive dependencies. c. it is in INF. d. it has no partial and transitive dependencies. 14. The four elements of a data model are Entities, Attributes, Relationships and a. Entity-Relationship diagram b. Primary Keys c. Supertypes and Subtypes d. Constraints
Describe how functional dependencies may be used to show: • There is a many-to-one connection set between the entity sets student and instructor, as well as a one-to-one relationship set between the two.
Produce a relational schema diagram that corresponds to the linked ER diagram for a database for the television show Saturday Night Live (SNL). Your relational schema diagram should include primary and foreign keys. Often-times in database system development, requirements will change after the conceptual data model has been drafted: in your rela- tional schema diagram, add the following three additional attributes: attribute “birth.date" for the relation schema Host; attribute “start.date" for the relation schema Writer; and attribute “salary" for relation schema Cast Member. Please refer back to the requirements in Question 6, for additional details that may constrain the design of the relational schema model. Use the tool linked to create an image. Hints: please carefully note that "rerun date", “address", and “phone" are multi-valued attributes; how would those be depicted in the relational schema diagram? Also, please carefully note the many-to-many relationships; how would those…
Explain how functional dependencies can be used to indicate the following: A one-to-one relationship set exists between entity sets student and Instructor. A many-to-one relationship set exists between entity sets student and instructor.
What exactly is the weak entity type? What is the key to it? Give an example what is an altrubute specialization?how ia represent on ER diagram? Give Example and draw corresponding diagram
Swing Jazz Club ERD Problem Follow the Simple Procedure for ERD diagramming to design an ERD using the following user provided information. Remember the ERD will eventually turn into the design for a database from a top down view. Make sure you resolve any many to many conflicts. Label an identifier or primary key and all pertinent attributes given. If an attribute is not readily apparent from the user information, then make one up that makes sense for the particular entity. Therefore, all entities should end up with at least an identifier and another attribute that makes sense. You may use any of the approaches shown by the book, though the ER-Model and Crow’s foot are the most common. Make sure you show entities, relationships, cardinality, and optionality. Swing Jazz Club The Swing Jazz Club teaches swing and jazz dancing and offers both private and group lessons. Swing Jazz charges $60 dollars per hour for a private lesson and $10 dollars per hour for a group lesson.…
San Diego Hospital Example ERD Problem Entity Relationship Diagramming is a "top down" user process. Take the following user provided information and draw the appropriate ERD. Follow the Simple Procedure for ERD diagramming to design an ERD using the following user provided information. Remember the ERD will eventually turn into the design for a database from a top down view. Make sure you resolve any many to many conflicts. Label an identifier or primary key and all pertinent attributes given. If an attribute is not readily apparent from the user information, then make one up that makes sense for the particular entity. Therefore, all entities should end up with at least an identifier and another attribute that makes sense. Please use a drawing tool of some type to show the ERD diagram (Word, PowerPoint, and Visio all work well). I want you to get in the habit of drawing these with a computer instead of by hand, as this will be important as we get to more difficult…