Based on Figure, answer the following 1. Derive the relation schema from the conceptual ERD 2. Draw the logical ERD based on the outcome of (1)

Q: how to graphically identify an entity, a the cardinality (o,N), a weak relation ship, and a strong…

A: Graphically identifying an entity in a Crow’s Foot notation: In ER model, the term entity refers to…

Q: Model each of the following constructs inanE-R diagram: composite attribute,multivalued attribute,…

A: Model each of the following constructs inanE-R diagram: composite attribute,multivalued attribute,…

Q: QUESTION 6 There will be three tables after converting the following conceptual diagram into the…

A: 6)  Answer :-- False It will converted into two table table A with two fields named field1 and…

Q: Define a weak entity set and a strong entity set

A: (1) An entity set refers to a collection of similar objects, concepts, or ideas that can be uniquely…

Q: Make the entity-relationship model in Luicdchart for the following case: In the company Tecno1818…

A: Entity Relationship model is used for data modeling to database. It defines the relationship between…

Q: Question1: Consider the Entity Relational (ER) schema of relation R= (A, B, C, D, E(E1, E2));…

A: Since this question has multiple subparts we will answer only three. If you want any specific…

Q: A weak entity set may always be trans formed into a strong entity set by including the primary-key…

A: The Answer is given below step.

Q: Using the assumptions you stated in your answer to question 2.32, what are the determinants of this…

A: Given: Using the assumptions you stated in your answer to question 2.32, what are the determinants…

Q: QUESTION 18 Match the term that best fits its definition. v Alternate Key A A minimal set of…

A: Find Your Matching Table Below

Q: Q.No.1.a. Draw ER- notation for the given elements of ER-Model. Entities Strong Entity Weak Entity…

A: Note: The solutions of the first three subparts of question 1 are shown below. Please repost the…

Q: (6) What are the 2 properties we need to keep in mind while doing decompositions to achieve a…

A: 2 properties are : ✓Lossless Decomposition: If the information is not lost from the relation that is…

Q: Regards to the diagram below (figure 4.12), answer the following questions using the multiple-choice…

A: The answers for the following question can be derived from the diagram given. How is of_type…

Q: Draw an ER diagram expressing the total participation of an entity type “BURGER” in a binary…

A: Answer: I have given answered in the handwritten format in brief explanation

Q: ibutes). Resolve many-to-many relationships, if any. Make common business rule assumption if…

A: The given is a set of details that are to be stored for designing the data model of food and…

Q: Assume a relation schema R(a, b, c, d, e, f) with primary key (a, b) and the following full func-…

A: Functional Dependencies:- Functional dependencies are the result of the interrelationship between…

Q: Map the following ER-Diagram into schema Diagram. Note: Must state the PK/FK example R3(A7/Pk, A5,…

A: The relationship between 1 and 2 is 1:M. So we need to include primary key of relation 1 as foreign…

Q: Consider the relation T, with key and functional dependencies shown below. I. What Normal form is T…

A: Given: T( j, k, l, m, n, o ) Key:   j, k FD1:   j, k -> l, m, n, o FD2:   k -> l, m FD3:   n…

Q: 1. If a weak E exist and has Then, what m

A: 1 . If a weak entity E depends on entity S to exist and has 1:m relationship with entity F. Then,…

Q: Design an Entity-Relationship for each system described below. Use the (min,max) notation. State…

A: An entity is the relationship model which describes the interrelated things in a domain. A basic ER…

Q: 1. Consider the relation schema which records student grades received from courses they have taken…

A: Candidate key: - It is a collection of attributes that recognize rows in a table in a unique way. It…

Q: Given a relation with underlined key attributes as below A B 1 7 9. 2 7 10 11 4 8 11 5 7 10 •…

A: All functional dependencies from the given relation is A -> B A-> C C -> B The given…

Q: Consider the depicted state for relation R in the table below: C y 2. Which of the following…

A: Correct regarding functional dependencies in given relation R

Q: Draw the Dependency Diagram that is in 3NF for each relation. For each relation show the level of…

A: The steps are explained below.

Q: How do you map a "One to Many" relationship when mapping ER Diagram to Schema

A: To map one to many relationships, the primary key on the `one side' of the relationship is added to…

Q: Also, develop a model of the proposed database systems using the Entity Relationship (E-R)  model…

A: ER Diagram Entity Relationship Diagram is a diagram that shows the relationships between entity…

Q: Define three conditions under which it is appropriate to use a surrogate key in place of the primary…

A: Prerequisites for the suggestion of a surrogate key. There are three circumstances that indicate it…

Q: In the space provided below the following ERD, transform the following M-N relationship into an…

A: ERD: ERD stands for Entity Relationship Diagram. This is a diagram which is used to show the…

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: 2. Give a sample tuple that would violate the Entity Integrity constraint of any relation. Explain…

A: In Database Management System, the integrity constraints are the set of rules that is used to…

Q: Transform an E-R (or EER) diagram into a logically equivalent set of relations.

A: A well-structured relations are obtained when remodeling EER diagrams into relation. But a…

Q: A binary relationship that is one-to-many in an ERD is best represented by adding the primary key…

A: Lets see the solution.

Q: Describe how functional dependencies may be used to denote the following: • The entity sets student…

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

Q: Describe how the composite attribute of an E-R diagram is transformed into relations

A: Given: Describe how the composite attribute of an E-R diagram is transformed into relations…

Q: Multiple choices.  Circle (or indicate) the correct (or the best) answer. You should choose only one…

A: 1) p, b, c, e [underlined attributes indicate schema of the relation] 2)     (d) Schema

Q: Many to many relationships (a non spcific relationship) are resolved into a pair of one-to-many…

A: Many to many relationships (a non spcific relationship) are resolved into a pair of one-to-many…

Q: xplain the following terms briefly: attribute, domain, entity, relationship,

A: **Kindly Note: As per our company guidelines we are supposed to answer only first 3 sub-parts.…

Q: Using the above table structure, create a normalized Entity-Relationship Model (ERM). Identify…

A: Solution:- One table should be order table(order no,order date,customer no), Customer…

Q: Which of the following statements is true about the above E-R diagram? I. The attribute G will be…

A: The given diagram is entity relationship diagram that has entities and relationships among the…

Q: Please provide a list and illustrative example for the three forms of binary relationships that are…

A: Given: When an attribute of one entity type relates to another, there is a connection between them.…

Q: Based on Figure: 1. Derive the relation schemas from the conceptual ERD in Figure 2. Draw the…

A: Given: Based on Figure: 1. Derive the relation schemas from the conceptual ERD in Figure2. Draw the…

Q: Explanation of three circumstances in which a surrogate key should be generated for the main key of…

A: Surrogate key: It is a key that does not have any contextual meaning but is used to identify the…