Consider the following relation En roll (S-no, Course-no, Section) Teach (Prot, Course-no, Section)Advise (Port, S-no) Pre-Req (Course-no, Precourse-no) Grades (S-no, Course-no, grade, year) Write down queries expressed in SQL  1) List all students taking course with smith or Jones   2) Find all students taking at least one course that their adviser teaches  3) List those professor who teach more than one section of the same course 4) Find all students whose course number is ‘101’

Q: Movies (Movie id. Title, Year, Rating, Num_rating) Movie Cast(Movie id. Name, Position_of_cast)…

A: Introduction : A SQL query is given here,we have to find out ,what will be returned by this query.

Q: Consider the following schema. The following relations keep track of Movie information. Movie…

A: To write the following queries 1.Find all the star's name who appears either in a movie made in 1980…

Q: Study the relational schema: CUST(ID, Name, ProdID) PROD(ProdID, PName, Price) Which of the…

A: option(B) is the correct option.

Q: A relation may not have a super key. (a) True (b)False

A: A super key is a set of one or more attributes (columns) within a relational database table…

Q: Consider the following 4 queries for relation ASG SELECT 3- ENO ASG FROM WHERE RESP=Value q2: SELECT…

A: It is the method of saving separate copies of a database on couple or more sites. It is a popular…

Q: Using SQL data definition language, write the SQL statements to  create each of the following…

A: The SQL statements to create each of the following relations.

Q: onvert the decimal number 1984 to binary, octal, and hexadecimal number system

A: The given decimal to binary, hexadecimal and octal number

Q: Write a program that calculates the average of an array of 5 floating-point values.

A: Algorithm: Start Declare A[5] Set I = 0 Set Sum = 0 While I < 5 :    READ A[I]    Sum += A[I]…

Q: hay have any number of Pets, who are identified by a sequential number that carts at 1 for each…

A: SQL query for Client table:- Create table Client (ClientID int(20) (Primary key), FirstName…

Q: Under what circumstances can a relation have duplicate rows?

A: GIVEN: Under what circumstances can a relation have duplicate rows?

Q: Compute the average number of hours for the courses offered by each college.

A: Below i have written the query:

Q: Region, MaxCapacity) ate, CodH, Dose num, Colla L language:

A: Example of the customer, truck, city and shipment Creating table create table customer(cust_id…

Q: Given the following relations, write an SQLite query with JOIN keyword to retrieve the full name of…

A: As per the question statement, We need to write Sqlite query for the requirement.

Q: Using the INVOICE table structure shown in figure below answer the following question. Write the…

A:

Q: Redundancy O False

A: Explanation: Decomposition is a technique for removing anomalies, inconsistencies, and redundancy…

Q: Question:1 Show all data from employee table where name should be in ascending and salary in…

A: As per BNED rules we are allowed to answer 1 question at at time if you want response of another…

Q: Consider the following schema: Employee (Ename , EID, EDept, ERank, EAddress) Convert the following…

A: For the given query statements, we have to write the Relational Algebraic Expression.

Q: The degree is the number of tuples in a relation. Select one: a. False b. True

A: Relational Database: Table is called as relation or file. Row is called as tuple. Column is called…

Q: Study the relational schema: STUD(ID, Name, CID) COURSE(CID, PName, Price) Which of the following…

A: In step 2, you will get the answer. Join is used to mix rows from two or more tables based on the…

Q: Consider the following schema (keys are underlined): Product(pid, name, manufacture, price),…

A: Solution::   Query 1 - Relational ALgebra   π cname σ manufacturer = 'sears' Customer ⨝ Customer.cid…

Q: Table

A: A database is made out of multiple tables and each table holds the data.

Q: Write a SQL query. List names of all employees who have sold to customer Rachel Patterson (Note: You…

A: In this database problem, we are tasked with creating an SQL query that lists the names of all…

Q: Consider the following schema and write the following queries in relational alge Product(pid, pname,…

A: 1. Use selection operator to select only those product where pname is shoes.…

Q: Consider the ER diagram illustrated in the following figure. Convert the ER diagram to relations and…

A: In this question we have been given a ER (Entity-Relationship) diagram which need to be converted…

Q: 4. Which colleges offer courses? 5. What is the name and college of each department? 6. What is the…

A: The given problem is will be solved using relational algebra expression where the tables and sample…

Q: Using the instance of the Airport database, formulate the following queries in the relational…

A: Relational algebra which refers to the a procedural query language. It also which gives a step by…

Q: the following schema ,write the relational algebra queries for the following:…

A: Every database management system must define a query language to allow users to access the data…

Q: Explain the relationship between EXISTS and correlated subqueries.

A: Given: Explain the relationship between EXISTS and correlated subqueries.

Q: Consider the following schema. The following relations keep track of Movie information. Movie…

A: Given:  To write the following queries   1.Find all the star's name who appears either in a movie…

Q: plai

A: Correlated subqueries For each row processed by the parent statement, a connected subquery is…

Q: 1. Which courses are three-hour or over courses? 2. Which courses offered by Department 7 are…

A: SELECT statement is used to retrieve data from a table. Syntax: SELECT    column1, column2, ...FROM…

Q: Q2 Consider the following relations: BRANCH (branch no, street, area, city, degree, Tel_no, Fax_no)…

A: 1. select * from branch where branch_no<453 and area='34 east'; 2. select * from staff where…

Q: Given the relation members(mid: INTEGER, name: CHAR(30), age: INTEGER, tier: INTEGER) Write a SQL…

A: Aggregate functions used: COUNT() -> calculate each tier with more than 2 members  -> Need to…

Q: Compile a list of six operators that may be utilised while building LINQ queries.

A: LINQ: Define LINQ is an acronym for Language Integrated Query and is a component of Microsoft's.NET…

Q: Execute a SQL statement to add a check constraint to the field mode_of_payment with values ('D', 'R'…

A: To save accurate and dependable data in the order_db database, data integrity is essential. A check…

Q: Three tables are given Student: studentNO, firstName, lastName, studentProgram Professor:…

A: 1. SELECT last name,studentProgram FROM Student  UNION SELECT professor name, Professor Program FROM…

Q: Please help with the folllowing: Consider the following declaration of a relation schema…

A: QI:  Insert INTO R (B, C) Values (353, 'B');  Screenshot of SQL program for the above insertion…

Q: Using the Schema - data/statistics Write down the following SQL queries. Assume appropriate data…

A: Create appropriate tables and do the given SQL queries     Note: Dear user, as per company policy we…

Q: In the figure below, STUDENT relation has a composite primary key contains Stud_ID and Course_ID.…

A: The Answer is  in Below Steps

Q: Consider the following relations: BRANCH (branch no, street, area, city, degree, Tel_no, Fax_no)…

A: The given relations: BRANCH (branch_nu, street, area, city, degree, Tel_no, Fax_no) STAFF (Staff_no,…

Q: Given two relations x(A,B,C,D) and y(B,C,E,F). Without using outer join expression, write a SQL…

A: The given problem is to be solved in the form of SQL query which will fetch the records from X and Y…

Q: ) Consider the following relations: BRANCH (branch_no, street, area, city, degree, Tel_no, Fax_no)…

A: Create database company; Create table BRANCH(branch_no int primary key, street varchar(20), area…