List the name and comments of all renters

Assignment Help Basic Computer Science
Reference no: EM131260613

Consider the following relations

RENTER(rno, fname, lname, address, tel_no, pref_type, max_rent)

VIEWING(rno, pno, date, comment)

PROPERTY_FOR_RENT( pno, street, area ,city, pcode, type, rooms, rent)

Express the following queries in relational algebra.

(i) List the name and comments of all renters who have viewed a property.

(ii) Identify all renters who have viewed all properties with three rooms.

Reference no: EM131260613

Questions Cloud

How the dashpot heats up when the input base velocity : Make a simple model of the system that would predict how the dashpot heats up when the input base velocity V (t) is given. Discuss your assumptions and how you might estimate the system parameters you need for the thermal part of your model.
Analyze the role of important financial reporting statements : Identify the current industry trend that has the most significant impact on your chosen organization's financial performance. Indicate the trend's impact on the financial performance of the organization. As the CFO, suggest at least one (1) way th..
Difference between using functions : Explain the difference between using functions with and without grouping attributes in relational algebra. Give examples.
What were the values of beta for each stage : What were the values of beta (β) for each stage? What 3 amplifier configurations were used? Explain the change in voltage gain when RE1 and RE2 were adjusted.
List the name and comments of all renters : (i) List the name and comments of all renters who have viewed a property. (ii) Identify all renters who have viewed all properties with three rooms.
Project brief prototype electric freight train : EAT 100: DESIGN, DRAWING AND PRACTICAL SKILLS Design, Build and Test Project Brief "Prototype Electric Freight Train". Your electric rail vehicle must carry as much ballast as possible to a maximum load of 1kg. 1kg of ballast will occupy a volume of..
Indicate the effect of latent heat of freezing or melting : Consider a given mass of water as a thermal capacitor. Sketch the constitutive law for this element for a range of temperatures including the freezing point. Indicate the effect of the latent heat of freezing or melting.
What is nanotechnology : What is nanotechnology? What are nano computers? How can nanotechnology and nanocomputing benefit us? How might it harm us? What kinds of ethic challenges do research in nanaotechnology and nanocomputing pose?
Should he build the pilot project : Should he build the plant? Should he build the pilot project and then make a decision? Help Lau by analyzing this problem.

Reviews

Write a Review

Basic Computer Science Questions & Answers

  How many levels of page tables would be required to map

Assuming a page size of 4 Kbytes and that a page table entry takes 4 bytes, how many levels of page tables would be required to map a 64-bit address space, if the top level page table fits into a single page?

  Items of a equipment to produce goods

An organization uses number of items of a equipment to produce goods. Each item is at one LOCATION, of one TYPE and has a DETAILED_DISCRIPTION.

  Designing a corporate network

Design a network that connects the four offices of XYZ by wide area links. The company has users in three different departments, each of which has different security and resource requirements. However, each of the physical offices has some users from..

  Examine the assembler listing for your program

By this point, you will be expected to all of your work in assembler. However, if you find yourself still having difficulty, you may implement the algorithm(s) you choose to address the items below in the high level language of your choice (e.g., ..

  Prolog sudoku

Write a Prolog program to solve the 6 by 6 Sudoku puzzle distributed in class. Do not use a solution downloaded from the Internet or elsewhere. Write your own. It should be designed along these lines

  Health products on the market

Near the end of the video clip, the health and medical editor states that washing hands and drinking water will keep one healthier than most of the health products on the market.

  Some nefarious computer activities called ping sweeps

Some nefarious computer activities called ping sweeps and port scans. He wants to know more about them and what their impact might be on the company.

  Identify minimum of two additional network devices

What are some of the Security Basics when it comes to workstations and ways to secure Server environments - Identify a minimum of two additional Network Devices and ways to secure the devices?

  Create sheet sales and put reasonable numbers

Create a file: Pizza_by_First_Last.xlsm . Create sheet Sales and put reasonable numbers for prices (your choice), add create formulas. Put the % for sales tax in H1 (it is 8% in NY).  After that, you need to put formulas in place, add a row for total..

  Effective enterprise risk management

The following material may be useful for the completion of this assignment. You may refer to the documents titled "Embracing Enterprise Risk Management: Practical Approaches for Getting Started" and "Developing Key Risk Indicators to Strengthen En..

  Main program prints gcd and lcm value

Write a program which defines total m integer numbers in pre-defined data area 'var_a'. The number m is stored in a location var_m. The program implements a selection sort on the array variable var_a. Name the program as selection_sort.asm.

  What are the shortcomings of using this method

What are the shortcomings of using this method?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd