Question

Give the tuple calculus expressions for each using the below schema: Type The Answers SPERSON(EmpID, Name,...

Give the tuple calculus expressions for each using the below schema: Type The Answers

SPERSON(EmpID, Name, Dept)

TRIP(TripID, EmpID, ToCity, StartDate, EndDate)

EXPENSE(ExpID, TripID, AccountID, Amount)

a) List the names and employee ID of a salesperson.

b) List employee ID and employee names that took a trip(s) to Charleston city.

c) List the names of all employees who have spent more than $500 on their trip.

d) List employees' names and their IDs that have never taken a trip.

e) List the names of all salespersons that have at least been on one trip.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Give the relational algebra, tuple calculus, and SQL expressions for each using the below schema: SPERSON(EmpID,...
Give the relational algebra, tuple calculus, and SQL expressions for each using the below schema: SPERSON(EmpID, Name, Dept) TRIP(TripID, EmpID, ToCity, StartDate, EndDate) EXPENSE(ExpID, TripID, AccountID, Amount) a) List the names and employee ID of a salesperson. b) List employee ID and employee names that took a trip(s) to Charleston city. c) List the names of all employees who have spent more than $500 on their trip. d) List employees' names and their IDs that have never taken a trip....
Consider a relational DBMS that has two relations: Emp (employees) and Dept (departments).    Emp(id, name,...
Consider a relational DBMS that has two relations: Emp (employees) and Dept (departments).    Emp(id, name, age, salary, dname)    Dept(dname, location) - The Emp table has 500 tuples, and each tuple has a fixed length of 500 bytes. The primary key attribute "id" has a length of 40 bytes. - The Dept table has 100 tuples, and each tuple has 200 bytes. The primary key attribute "dname" has a length of 20 bytes. For simplicity, we assume each employee...
using mysql lyrics.database. i will provide the lyrics schema database info below 1. List the first...
using mysql lyrics.database. i will provide the lyrics schema database info below 1. List the first name, last name, and region of members who do not have an email. 2. List the first name, last name, and region of members who do not have an email and they either have a homephone ending with a 2 or a 3. 3. List the number of track titles that begin with the letter 's' and the average length of these tracks in...
Please answer below questions in brief after reading the below article What makes the study of...
Please answer below questions in brief after reading the below article What makes the study of strategic management so interesting? Things can change so rapidly! Some start-ups can disrupt industries and become globally recognized names in just a few years. The rankings of the world’s most valuable firms can dramatically change in a rather brief period of time. On the other hand, many impressive, high-flying firms can struggle to reclaim past glory or even fail. Recall just four that begin...
Using the model proposed by Lafley and Charan, analyze how Apigee was able to drive innovation....
Using the model proposed by Lafley and Charan, analyze how Apigee was able to drive innovation. case:    W17400 APIGEE: PEOPLE MANAGEMENT PRACTICES AND THE CHALLENGE OF GROWTH Ranjeet Nambudiri, S. Ramnarayan, and Catherine Xavier wrote this case solely to provide material for class discussion. The authors do not intend to illustrate either effective or ineffective handling of a managerial situation. The authors may have disguised certain names and other identifying information to protect confidentiality. This publication may not be...
SQL Write the queries necessary to obtain the required information 1) Use sub query and “in”...
SQL Write the queries necessary to obtain the required information 1) Use sub query and “in” keyword to print the salesreps (ids) who have taken order for the companies ‘Zetacorp’ or ‘JCP Inc.’ . Duplicate rows are not allowed 2) Use sub query to find the id and the name of every sales rep that represents at least one customer with a credit limit of greater than $5000. 3) Use sub query and keyword “exists” to list the id and...
Please read the article and answear about questions. Determining the Value of the Business After you...
Please read the article and answear about questions. Determining the Value of the Business After you have completed a thorough and exacting investigation, you need to analyze all the infor- mation you have gathered. This is the time to consult with your business, financial, and legal advis- ers to arrive at an estimate of the value of the business. Outside advisers are impartial and are more likely to see the bad things about the business than are you. You should...
2. SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to...
2. SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to be used as a basis for class discussion rather than as an illustration of the effective or ineffective handling of an administrative situation. The name of the company is disguised. INTRODUCTION In light of demographic concerns, in 2012, the Japanese government initiated an effort to change the work environment in order to secure the workforce of the future. Japan is world renowned for its...
3 SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to...
3 SECURING THE WORKFORCE Diversity management in X-tech, a Japanese organisation This case is intended to be used as a basis for class discussion rather than as an illustration of the effective or ineffective handling of an administrative situation. The name of the company is disguised. INTRODUCTION In light of demographic concerns, in 2012, the Japanese government initiated an effort to change the work environment in order to secure the workforce of the future. Japan is world renowned for its...
Discuss how the respective organizations’ relations with stakeholders could have potentially been affected by the events...
Discuss how the respective organizations’ relations with stakeholders could have potentially been affected by the events that took place at Enron and how the situation could have been dealt with differently to prevent further damage? THE FALL OF ENRON: A STAKEHOLDER FAILURE Once upon a time, there was a gleaming headquarters office tower in Houston, with a giant tilted "£"' in front, slowly revolving in the Texas sun. The Enron Corporation, which once ranked among the top Fortune 500 companies,...