Question 1: Map the following ER diagram into a relation schema. Show the different constraints. r1 a2 s1 b1 b2 t1 c1 ..... c2 A.

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: Consider the relation schemas R(A,B) and S(A,B). Suppose {A } is the key for R and also the key for…

A: Even though {A} is the key for both R and S, the union of R and S has the complete keyset, so here…

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: EER (Enhanced Entity Relationship) diagram: C) Person o person ID : int name: string address :…

A: Introduction and the overview of the query -In this question we have to understand about the given…

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: Consider the following statements: (1) We can check if a functional dependency holds by examining a…

A: A functional dependency is a relationship between two attributes, typically between the PK and other…

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: Below STUDENT Student No Student Name Student Age has

A: CONNECTIVITY: The connectivity between the Student and the Result is one-to-one. One Student has…

Q: Consider the relations Student(name, Marks) and Teacher(ID, name, Salary) in which name is the…

A: According to natural join, if more than one attribute is in common then natural join selects only…

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: Transform the following entity relationship diagram into a relational schema.

A: There are many different UML diagrams that serve different purposes. You can describe those details…

Q: List three conditions that suggest a surrogate key should be created for the primary key of a…

A: To be determine: List three conditions that suggest a surrogate key should be created for the…

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: # Question 1. Please select the correct statement(s) regarding a key constraint for a relation. An…

A:

Q: aaa A d N R T bbb B N S CCC Convert the above ER diagram to relations in the normal manner, and then…

A: An ER diagram is an visual representation of the entities, attributes and relationships within a…

Q: You may assume the followings:    • Each material item has one or more vendor. Each vendor may…

A: To draw a dependency diagram and decompose the relation into a set of 3 NF relations, let's first…

Q: Consider the following relation: Computer_Repair(Comp_ID, Engineer ID, Date Assigned, Customer_name,…

A: In database design, it is crucial to ensure that relations are normalized to avoid anomalies such as…

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: The following functional dependencies describe a relation that is in 2NF. Customer_ID, Store_ID→…

A: Rules of 2NF: Table must be in 1NF No non-prime attribute is dependent on the proper subset of any…

Q: LGCUSTCMER LGBRAND PK Cust Code PK Brand ID Cust Fname Cust Lname Cust Street Cust City Cust State…

A: Although Second Normal Form (2NF) relations have less repetition than those in 1NF, they might in…

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: QUESTION 26 Consider a relation R(A B, C, D, E) with the following dependencies: AB-C, CD-E. DEB how…

A: Dear Student, A key is a candidate key if it's the minimum length key that can derive each…

Q: In the following, assume that A = {a,b,c,d} and that R : A ↔ A. Determine whether each relation is…

A: These are the some important term which are used to derive the following properties:-

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: Question 10. Consider the relation R (ABCDE) and functional dependencies set {A highest normal form…

A: Steps to find highest normal form of relation: Find all possible candidate keys of the relation.…

Q: Assume you have a one-to-one adviser connection. What additional restrictions must the relation…

A: Cardinality restrictions are specified, generalized, and used to simplify design, enhance…

Q: 1) Consider the relation T, with key and functional dependencies shown below. I. What Normal form is…

A: Keys :   In a database management system, a key is an attribute, or group of attributes, that aids…

Q: Consider a relation with schema R(A,B,C,D,E,F,G). Choose the key for the relation for the following…

A: According to the question we need to consider a relationship with schema R(A, B, C, D, E, F, G).…

Q: Map the car sale ER schema into a relation schema. Specify all primary keys (underline) and foreign…

A:

Q: Consider the relation sec course, which is the result of a many-to-one connection set sec course. Do…

A: Foreign keys are columns or groups of columns in a relational database table that serve as a…

Q: LGCUSTCMER LGBRAND PK Cust Code PK Brand ID Cust Fname Cust Lname Cust Sreet Cust City Cust_State…

A: All relations in 3NF, and all PK,FK are shown in dependency diagram as below :

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: Relations 2. Given: Relation R1 = {(a,a), (a,b), (c,b), (c,e), (d,b), (d,e), (e,e)} %3D Relation R2…

A: Relation R1 = {(a,a), (a,b), (c,b), (c,e), (d,b), (d,e), (e,e)} Relation R2 = {(q1,q2), (q2,q3),…

Q: der the fonowing felation. Computer_Repair(Comp_ID, Engineer_ID, Customer_name, Engineer_Name,…

A: Answer

Q: onsider a relation T with seven attributes ABCDEFG where AB is a composite primary key or T. Assume…

A: A)  Primary key for the given relation is AB The FD A ->CEF is a partial functional dependency…

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: OE-> E QUESTION 8 What is the type of relationship between Person and Club in this diagram? Person…

A: Note: Since the Question is multiple hence we are advised to do only one question. Question 8.…

Q: Given a relation R(F, G, H, I, J, K) and functional dependencies: • G-> FI • H> JK The candidate key…

A: Refer to step 2 for the answer.

Q: Consider the ER diagram shown in Figure 3.22 for part of a BANK database. Each bank can have…

A: (a) Relationship Types: BRANCHES, ACCTS, LOANS, A-C, L-C. The (min, max) constraintsare shown…

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: 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:-