AC→D, AB→C, AB→D, AB→E

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: Design an EER schema for a database application that you are interested in. Specify all constraints…

A: Diagram :

Q: Please written by computer source The following relation is an extract from a restaurant…

A: Introduction : This question involves analyzing a relation from a restaurant point-of-sale (POS)…

Q: A relation R on a set S, defined as x R y if and only if y R x. This is an example of? a) reflexive…

A:

Q: Question: Consider the relation: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q), {A, B} is the…

A: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q) Candidate key: {A, B}, {C,D,E}Prime attributes Non…

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: Reference: A --> B--> C   QUestion?  what is the defintion of this type of relationship and what…

A: 1) A transitive relationship is a type of relationship between entities or elements where the…

Q: An ID-dependent Weak Entity typically result in a table with a compound primary key with at least…

A: A weak entity in a relational database is one that can't be uniquely identified by just its…

Q: Consider the following dependency diagram: A B D E F a. the relationship between attribute A and…

A: According to question we have to  Consider the following dependency diagram and answer following…

Q: Analyze the following relation, a) write the types of functional dependencies; c) perform the…

A: For the above table, keys are not defined. Keys can be identified using real time conditions. For…

Q: uestion Consider the following database schema. CUSTOMER (CID, NAME, STREET, CITY, STATE, AGE) SALE…

A:

Q: Problem 1: A database for an online store has the following relational schema to keep track of…

A: A functional dependency in the setting of relational databases is a connection between two or more…

Q: TRUE or FALSE - Generalization (is-a) is the relationship established between entities to show that…

A: Answer: the given statement is false

Q: 5. Consider a relation R(A, B, C, D, E) with the following dependencies: AB → C, CD → E, DE → B

A: Given:  Consider the relation R(A,B,C,D,E) with the following dependency: AB -> C  CD -> E  DE…

Q: Give examples of relations that are: (a) reflexive and symmetric but not transitive (b) reflexive…

A: (a) Reflexive and symmetric but not transitive:   Let's consider a set A = {1, 2, 3}, and define a…

Q: What is the difference between a weak and a strong group of entities?

A: A weak group of entities typically has limited influence,power,cohesion,and resources,while a strong…

Q: Consider the relations Courses1, Courses2, Enrollment and Students. Courses cid ename Al Calculus A2…

A: As per the answering guidelines solving the first 3 sub question completely.  1)  Here selection…

Q: Random Hospital Example ERD Problem Follow the Simple Procedure for ERD diagramming to design an…

A: ans given below

Q: For each one of the domain specification given below, identify all the functional dependencies, and…

A: Answer(2) Employment(StdNum (PK), SubNum (PK), Grade, CreditValue) The Table is present in 1NF as…

Q: Given the relations CLASS(ClassID, Cycle, Teachinghours) and STUDENT(StudentID, ClassID, StudName).…

A: Answer:- Option-(A)-A class must have at least a student.

Q: 2 Consider the following functional dependencies for the given relation. R={A, B, C, D, E, F) AB->CD…

A: Dear Student, The answer to your question is given below -

Q: Create a conceptual schema for the following database domain. To make it completely clear, only one…

A: In the domain of managing books, chapters, authors, and various types of books, a comprehensive…

Q: - Identify the Partial Dependencies in the Rental relation.  - Give one example of one problem with…

A: Second Normal Form (2NF)In database normalization, the Second Normal Form (2NF) is a level of…

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: Normalization: elational schema and FR corresponding set of functio R = ABCDE FR = {AC, BD, C → A}

A: Tables are arranged using the normalization method in the database architecture to reduce data…

Q: The following are the objectives for the design of the logical schema:

A: Intro According to the question, a Logical schema is developed using diagrams that define the…

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: What precisely do you mean when you say that a dependence is transitive?

A: Different kinds of functional dependencies in DBMS: A relation between two properties of a related…

Q: A_ _is a property of the entire relation, rather than of the individual tuples in which each tuple…

A: 1) A key in DBMS is an attribute or a set of attributes that help to uniquely identify a tuple (or…

Q: Regular entity type is transformed to a relation.

A: To be determine: Regular entity type is transformed to a relation.

Q: The conclusion of the template is a condition which must be held on tuples hypothesis in the…

A: Template dependencies offer a broader range of data dependencies than earlier dependencies could…

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: 32 of 40 Suppose attribute A is a key in the relation R. Which of the following statements is not…

A: Attribute A is a key in given relation R. And we have to check, which statement is not correct in…

Q: Given the relation R(C, D, E, F) and functional dependency: C-> DF Which of the following functional…

A: Answer to the above question is in step2.

Q: Consider relation R in the following E/R diagram. If E1 has 3 entities, E2 has 4 entities, and E3…

A: Given Data : Number of entities in E1 = 3. Number of entities in E2 = 4. Number of entities in E3 =…

Q: Construct an ERD for Leslie’s Auto Sales. Make sure to denote your primary and foreign keys. Note:…

A: An ER diagram (Entity-Relationship diagram) is a graphical representation of entities and their…

Q: d) Both a and b . Suitable level of partitioning is found within the range of a) Tuple and attribute…

A: Actually, partitioning is splitting the database table into many tables.

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: Consider the relations Courses1, Courses2, _Enrollment and Students. Courses cid ename Al Calculus…

A: Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in…

Q: Create an unnormalized relation using student and class entities.

A: Here, we have to create an unnormalized relation using student and class entities.

Q: lation R on a set S, defined as x R y if and only if y R x. This is an example of? a) reflexive…

A: Introduction: A relation R on a set S, defined as x R y if and only if y R x. This is an example…

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.