Suppose you have the following relational DB. You may assume that no future instances of  the   relations will violate the keys that can be inferred to hold in the current instance : Generate relational Algebra queries for the following queries. List names of all male employees born after 1981.

Q: produce a list of relations indicating the primary key, columns and foreign keys.

A: Given data:Given columns:customerIDcustomerNamecustomerCurrentAddress…

Q: Suppose you have the following relational DB. You may assume that no future instances of  the…

A: πEname(σYOB>1981 AND Sex=M(Employee))

Q: Consider the following table   Given the above table, determine its stage of normalization and…

A: The given table is in 2NF which consists of Partial dependency of attributes i.e., the non prime…

Q: Consider the tables . and write the relational Algebra for the following tasks i. Find all the…

A: According to the question below the solution:

Q: Write SQL queries that will do the following: 1. List the name and the ID of all patients 2. List…

A: We are given 3 tables along with the data, we have going to write SQL queries for the given problems…

Q: Draw the corresponding ERD.   You can do this at the end of this Word Doc. if you need more space,…

A: The ER diagram is

Q: PLZ help with the following: Using Oracle SQL developper Translate your ER diagram into a…

A: E-R Diagram is given with different attributes and relationships between them.

Q: Write a relational mode for each of the case below. You can create our own attributes and provide…

A:

Q: 13. Find the name of all patients whose ID ends with '445' 14. Add new medicine to the database 15.…

A: the query to perform the operation is written below. 13.select P_name from Patient where ID='%445';…

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: Write Queries in Relational Algebra = sleer (r) = From T =where Op(7) Consider the following schema:…

A: Solution:   Given,

Q: QUESTION 5 Table 5.1, 5.2 and 5.3 show instances for three (3) relations, Patient, Treatment and…

A: According to bartleby guidelines we are supposed to answer only 3 subparts in a question i have…

Q: What is the result of first performing the cross product of student and advisor, and then performing…

A: Introduction: Cross Product: Cartesian Product in DBMS is an operation used to merge columns from…

Q: Make sure the SQL script file can be run successfully in MySQL and show the outcome of the code on…

A: Task 1: Create TablesWe have to create tables for Orders, Customers, Items, and any associative…

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

A: Below i have written the query:

Q: that consists of five tables. Primary keys are (BOLD and Italicized). Attributes with the same names…

A:

Q: Specify

A: Here are the SQL queries as asked:   1. List the department managers who are controlling more than 2…

Q: What is the result of first performing the cross product of student and advisor, and then performing…

A: The answer for the above question is given in the below steps for your reference.

Q: 4. Find the names of patients who have a prescription that contains the medicine called Panadol. 5.…

A:

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: What are the significant functional dependencies in this relation?         (b) What is/are the…

A: Functional Dependencies (FD):                It determines the relation between two attributes in…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: There is only one error in the above code and that is the ALTER TABLE command on the address table.…

Q: SQL allows relations with duplicates (Chapter 3), and the multiset version of the relational algebra…

A: Validation:   All the equivalence rules 1 through 7.b of the section 16.2.1 will hold for the…

Q: Question: Do a Left Outer Join of relations D and C over their common attributes. D being the…

A: Below i have given query:

Q: Question 3. If relation R declares some attribute(s) as a Foreign Key (FK) referencing to another…

A: Foreign key is used to defined relationship between table. A foreign key of table R is refer to…

Q: 1. The BOOK CHECKOUT relation stores data about books checked out by students at a university. The…

A: Book_checkout (studentID,studentname,studentphonenumber,ISBN ,booktitle,checkoutdate,returndate)…

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: Create Relational Model of the given ERD. Highlight the mandatory foreign keys in your relational…

A: Objective: An entity-relationship diagram is given including several relations like Book, Publisher,…

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: What is the result of first performing the cross product of student and advisor, and then performing…

A: The cartesian product allows us to combine information from any two relations. The cartesian product…

Q: Consider the employee relation in the screenshot provided   and answer the questions that follow.…

A: Answer a) Select emp_name, Salary from employee where Salary >=2500.00 and Salary <=4000.00…

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: EmpID and OrderlD are unique identifiers. An employee may have more than one certificate.…

A: The given problem is related to relational database modeling where an Entity Relationship diagram is…

Q: 1. Consider a relational table R-(V,W,X,Y). Each of the cases below is based on a new and different…

A: Given relational table is, R=(V,W,X,Y) Normalization means splitting the large table into smaller…

Q: Convert the following ERD into relational schema. It should include the relation names, attribute…

A: Convert strong entities into relational tables. Convert weak entities into relational tables.…

Q: Using relational algebra, write a query that; Selects person's with stamps as their hobby from the…

A: It is defined as Structured Query Language, is a programming language designed to manage data stored…

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: 5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the…

A: First check whether phone_id column exists in your customer, staff, and store table or not. If…

Q: Enroll(SIN: Integer, CID: String, Term: String, Grade: Integer); Teaches(CID: String, Term: String,…

A: Constraints are the rules enforced on the data columns of a table. These are used to limit the type…

Q: Schema: a Student ID | Name | Major Major is a FK to Dept in Course e Course Dept Num Title P Dept…

A: a. Relational calculus 1. What are the abbreviations for department and course titles numbered…

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

A: We are given the relations Courses1, Courses2, Enrollment and Students. We have to give results of…