Explain why the relation below is or is not, a valid relation    StudentID FamilyName Degree Major GPA 12345678   WELLS   BSc   BIS 3.0 CS 3.5 12456789 NORBERT BSc CS GT D 23456789 KENDALL BSc CSF 3.5 23456789 KENDALL BSc CSF 3.5

Q: Consider the relation schema R (A, B, C, D, E). Find number of super keys if A, CD and BE are the…

A:

Q: Normalize the following UNF relation to 1NF, 2NF, 3NF, show primary key and foreign keys in all…

A: Each cell to be single valued. Entries in a column are same type. Rows uniquely identified-Add…

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: Translate the following ER diagram into the appropriate relational schema

A: ER diagram consists of entities with their corresponding attributes and relationships among…

Q: 39 Refer to the following ER diagram to answer the question below: PK Student SSN Name Year GPA How…

A: Answer:-   The correct answers are: A) The CampusID attribute in the Registration relation is a…

Q: ID name Courses M semester Teaches N ID name Professors Convert the above ER diagram to relations in…

A: SOLUTION -From the above Entity Relationship Diagram, we can identify three tables. They are1)…

Q: ENTITY_M M1 M2 M4 M3

A: ENTITY_M SQL query

Q: What is minimum cardinality?

A: Minimum Cardinality Minimum Cardinality is defined as the minimum number of instances that must…

Q: Give the results of the following relational ebra expressions: ) Tcid (o History' OR 'Comnuting…

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

Q: Normalize the 1NF relation to 3NF showing the resulting 2NF and 3NF relations. Show your work in…

A: Given Relation is, R(A,B,C,D,E,F,G,H,I,J,K,L) Key attributes are A, B, C The functional dependencies…

Q: a Normalıze the following UNF relation to INF, 2NF, 3NF, show primary key and foreign keys in all…

A: Primary key for the given relation is  {CustNo, ProdCode} The functional dependency possible on…

Q: This question is based on the following relation and sample data, where Employee Social Security…

A: Actually, database is a used to stored the data.

Q: How relation listening important?

A: The relationship that is built between people when they communicate is the focus of relational…

Q: et A be the students {Tom, Jim, Lisa, Mary}, B be the courses {C100, C200, C300, C400}, C be the…

A: Let A be the students {Tom, Jim, Lisa, Mary}, B be the courses {C100, C200,C300, C400}, C be the…

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: Table_1 below has a primary key of column1. Which column(s) from this relation could be a foreign…

A: When designing a relational database, it is important to determine which columns could act as…

Q: draw functional dependency diagram and normalization to bcnf

A: The relationship between the attributes are:- ORDER_ID -> DATE, ITEM_NUM, QUANTITYCUST_ID ->…

Q: 2. Suppose you have the ERD shown below. You need to change the M:N relationship into two 1:M…

A: Answer: We need to write the ERD diagram from M:N relationship to 1:M relation ship so we will see…

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: Convert the following ERD to relation schemas. EXPLAIN your answer. Dept Course number Name Name Id…

A: The Answer is

Q: For the following number patterns write the recurrence relation i) 5, 8.2, 11.4, 14.6, …. ii) 400,…

A: Recurrence relation for above are:      i)  an  = an-1 + 3.2            ;  n >= 1     a0  = 5

Q: see of representing relations as a graph or a matrix? What is one way that you might use either a…

A: A graph matrix is a square array that has one row and one column for each node in the graph. Node I…

Q: Consider the following instance of relation Sells(book title, library, price): book_title The grand…

A: Below is the answer to above question. I hope this will be helpful .

Q: fy the Functional dependencies c) List down the keys

A: Question   a) Split Composite attributes (where needed / if any)b) Identify the Functional…

Q: Why is it not possible to represent N:M relationships with the same strategy used to represent 1:N…

A: Given:   Why is it not possible to represent N:M relationships with the same strategy used to…

Q: MID manufacturer model capacity AID AID MID name count Вoeing Boeing Воeing Airbus 1 777 340 1 AA 1…

A: In natural join tables are combine bases on the same name and type of columns. Example in table…

Q: 1.5. Consider the relations and answer the questions that follow: Owner (6) Surname Firstname…

A: It is defined as a field in a table which uniquely identifies each row/record in a database table.…

Q: QUESTION 1 Is relation R on set of all integers reflexive where (x,y) ER if x is a multiple of y?…

A: Is relation R on set of all integers reflexive where (x,y) ER if x is a multiple of y is False

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: Qno 2: Normalize the following Customer-Order Relation up to 3rd Normal Form, but step by step show…

A:

Q: BANK Code Name Addr Phone BRANCHES ACCTS Acct no San Balance ACCOUNT A.C Name CUSTOMER Type BANK…

A: Relational model corresponding to given ER Diagram of Bank database systems:   1. BANK(Code, Name,…

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: SAMPLE VALUE [200128 Smith Accounting ACCT SAMPLE VALUE 199876 Jones Marketing MKTG Marketing 4378…

A: Actually, database is a used to stores the data.

Q: Give an example of a relation with a unique composite key

A: A unique key is one that identifies a row in a relation uniquely. The unique key may be combination…

Q: Given the relation below named Student_Registration , answer the following questions. S_id S_Name…

A: 1.What is the relational schema of the relation Student_Registration? Student_Registration(S_id…

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: Consider the following schema for a student relation. Student {Student ID, Last Name, First Name,…

A: Answer: our instruction is answer the first three part from the first part and I have given answered…

Q: Write SQL Query for each AMerican player (nation='America'), find the player's name and surname and…

A: Query for each AMerican player (nation='America'), find the player's name and surname and the date…

Q: 21. Decompose the relation Customers into a set of BCNF relations. Customers Customer_ID…

A: The answer is

Q: Q1:- 1- Find superkeys, candidate keys, primary keys, alternative keys in the following CAR relation…

A: Candidate Key: A candidate key refers to a column or combination of columns which uniquely…

Q: Because an EER discussion nearly always produces a normalised set of relations, what is the point of…

A: Normalization is a crucial part of the database design process, and its purpose is to reduce data…

Q: List functional, partial and transitive dependencies if exists in the table given in Figure 01.…

A: The solution is given below.

Q: Convert to 1NF.

A: A database is said to be in 1NF if it satisfies the following rules:In database  table, every column…

Q: What is an unnormalized relation? Is it a relation according to the definition of the word relation?

A: In a database management system, a relation is a collection of interconnected tables or a single…

Q: Show all the steps as you perform normalization for each problem up to 3NF. State your final…

A: From looking at table values since there is transitive dependency as Emp_no determines Lcode and…

Q: A table that contains a repeating group is a(n) unnormalized relation a O 1st NF b O normalized…

A: Lets see the solution.

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.