Subject: Database Management System Consider the following relations: PERSON(P_id,_F_name, L_name,Occupation, Salary, City) ORDER(O_id, P_id, Item, Quantity, Price, Order_date) The Primary Keys are P_id and O_id respectively. Express the following queries in SQL and Relational Algebra. a) Find the person's name and city

Q: Given the following relational schema (Hint: the bold text represents a primary key), Department…

A: From the above question, we have the condition as ,dept_code and stu_num are primary keys that means…

Q: Employee_Id, First_Name, Last_Name, Email, Phone_Number, Hire_Date, Job_Id, Salary, Commission_Pct,…

A: a. To get the average salary and number of employees working in department 90, we can use the…

Q: and express in Relational Algebra each of the questions below: Grades StudentId CourseCode…

A: Q9.

Q: Write the following queries in SQL on the relational database schema for COMPANY database given in…

A: Solution: Given: Given  the relational database schema for the COMPANY database   To Find:   Find…

Q: rite the SQL statements to create all of the necessary tables to represent the above diagram,…

A: Note: Since you have not provided the database name to write the SQL query so I am using the MYSQL…

Q: The relational schema shown below is part of a hospital database. The primary keys are highlighted…

A: (1) List all the patients’ details, alphabetically by name. SELECT * FROM Patient ORDER BY patName…

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

A: option(B) is the correct option.

Q: The relational database schemas are as follows: department(dept-name, building, budget)…

A: Given : The relational database schemas are as follows:department(dept-name, building,…

Q: onsider the following schema: Product(pid, name, type, manufacturer, price), Buys(cid, pid),…

A: a) relational algebra:  π cname σ manufacturer = 'sears' Customer ⨝ Customer.cid = Buys.cid Buys ⨝…

Q: QI) Consider the employees database, where the primary keys are underlined. Give an expression in…

A: 1. Find all the employees who work in ministry of foreign affairs and their age less than 33. SELECT…

Q: Consider the following relational schema and answer the following questions. User (email, name,…

A: Below is the complete solution with explanation in detail for the given question about SQL queries…

Q: Without using DISTINCT, write the SQL query equivalent to the following one SELECT DISTINCT…

A: The DISTINCT statement: The SELECT DISTINCT statement is used to show the distinct (different)…

Q: 1.Use the AP database for this question. Write a SQL query that displays the AccountNo and Account…

A: since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Find the last name of the supervisors who do not have dependents.

A: SELECT LNAMEFROM EMPLOYEEWHERE NOT EXISTS (SELECT *FROM DEPENDENTWHERE SSN = ESSN);

Q: Write the following queries in SQL on the relational database schema for COMPANY database given in…

A: We need to write a query to find the total number of dependents of each employee who has dependents.…

Q: Use the following relational schemas for answering the queries in relational algebra; STUDENT(ID,…

A: Query for the given conditions: SELECT ID , Phone FROM STUDENT WHERE name LIKE '%Kumar%' Here Its…

Q: Member (MemberID, Name, ContactNo, Status, Sex) Borrow (BorrowNo, MemberID, CatalogNo, CheckOut,…

A: This question would use nested sql queries from three tables as we are required to display: Book…

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: SQL: Consider the following relational schema:              Staff                 (staffNo, name,…

A: SQL stands for Structured Query Language. It is a standard programming language used to manage and…

Q: FirstName EID Name LastName Employee Birthdate TEL n Age work date ID m Name Project Rate In the…

A: SQL (Structured Query Language) is a popular language for accessing and manipulating databases. It…

Q: Find the name of employees who have salary less than the average salary of employees who are in…

A: Firstly, calculate the average salary of employees who are working in Department 4 and then use this…

Q: Write a PL/SQL block of code that performs the following tasks: i Read a movie id provided by user…

A: the solution is an given below :

Q: Consider the following relational schema and answer the following questions. Employee (Employee_Id,…

A: SQL (Structured Query Language) is used for managing and manipulating relational databases. SQL…

Q: Write SQL code for the following design schema of three tables. The tables should have the following…

A: - We need to design three tables with the requirements of constraints as provided.

Q: Consider the following table in a relational database. Last Name Rank Room Shift Smith Manager 234…

A: A candidate key is an attribute or set of attribute which can identify all tuple uniquely.

Q: Consider the following relational schema and answer the following questions. Employee (Employee_Id,…

A: The SQL query is given below for the above given question:

Q: Consider the Movie Stars database that contains the following relations: StarsIn(movieTitle,…

A: PART I : Database and Table creation This demonstration is using SQL Server 2014 for database and…

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

A: Your query is given below as you required.

Q: Using the relational database given in lab work no. 2, write the following queries in SQL: 1) Which…

A: Structured Query Language(SQL) A very-high-level language, in which the programmer is able to avoid…

Q: QI) Consider the employees database, where the primary keys are underlined. Give an expression in…

A:

Q: Write a relational calculus based on the following relations: Professor (ProfID, ProfName, DeptNo)…

A: department (deptId, name, hod, phone) professor (empId, name, sex, startYear, deptNo, phone) course…

Q: storeid address descriptie value Store Displays Memorabilia

A: CREATE TABLE STORE(    STOREID NUMBER(5) PRIMARY KEY,    ADDRESS VARCHAR2(20));   CREATE TABLE…

Q: I am having some trouble with this for an assignment in Database. I am trying to create some queries…

A:

Q: Write down the SQL commands for the following queries: a) Find the titles of all courses from your…

A: Find the department id which is CSE department Then filter out the records having same department id…

Q: Database Management Systems (SQL) Assume a company sells music albums. Each album consists of a few…

A: NOTE: According to rules, I am only permitted to respond to a certain amount of questions (including…

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

A: Let's create SQL statement for each of the given relations: 1. CREATE TABLE Student ( StudentID int,…

Q: Which database relation(s) could be joined with the result of the query of the previous inquiry to…

A: Question 1RENAME loan (loan_number1, branch_name1, amount1) SET DIFFERENCE loan, loan_number1…

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…

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.