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: Display the list of students who are involved in the IT club Display the details of all the…

A: First get the studid from Club table and then get those Student details This can be done using inner…

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: Consider the following sales relational database schema for sales. tem (ItemNo: integer, itemName…

A: Below is the answer of the above query. I hope this will be helpful for you...

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: Consider a database with the following relations: Employee (Employee ID, Name, salary, startDate)…

A: The following SQL Query can be broken down into sub-queries:   Sub-Query 1: Display Employees by…

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: 13. Using a single command sequence with the EMP_2 table, write the SQL code that will change the…

A: 13. The required SQL code to assign the value 18 to PROJ_NUM where JOB_CODE is 500 is given as…

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: 5) Which students took multiple courses from Zafer Erenel but not a single course from Vesile Evrim?…

A: select student.name,takes.course_id from student INNER JOIN takes ON takes.ID = student_ID AND INNER…

Q: query in relational algebra to find the ID and the brand of those trucks whose type is S.

A: It is procedural query language. It collects instance of relation as input and fives occurrences of…

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: 1.list names of students who did not registered any course. 2.list names of students who registered…

A: 1. list names of students who did not register for any course. Answer: SELECT name FROM Student…

Q: Explain how referential integrity is represented in relational model?

A: Referential integrity states that relationships between tables should be consistent. Referential…

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: Given the following relational schema (primary keys are underlined, optional attributes are…

A: b. Given relational schema: TRAINER (SSN,NameT, Surname, City) GYM (CodG, NameG, Address, City)…

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: A foreign key in a relational database table is (n): A Set of attribute values in a table. B…

A: Please find the answer below

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A: We are going to find those students whose status is registered but not Postponed. And we are going…

Q: SQL Server provides with three views to display the relations in an SQL Server database. These views…

A: SQL server provides with three views to display relations in an SQL Server Database. These views are…

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: 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: 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: Consider a database with the following relations: Employee (Employee ID, Name, salary, startDate)…

A: The following SQL Query can be broken down into sub-queries: Sub-Query 1: Display Project by name…

Q: Simplify the following query (WHERE clause), expressed in SQL, on the example database above: SELECT…

A: This query achieves the same result as the original query but is simplified by using INNER JOINs to…

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: ) 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…

Q: All parts of this question use the following database schema: Flights(flno, from, to, distance)…

A: SELECT MIN(salary),e.ename FROM Aircraft a JOIN Certified c ON a.aid=c.aid JOIN Employees  e ON…

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.