Identify all renters who have viewed all properties, Database Management System

Assignment Help:

Consider the subsequent 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 subsequent 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 along with three rooms.

Ans: (i) Π fname,lname,comment(RENTER VIEWING)
(ii) Π fname,lname ( σ rooms =3 (PROPERTY_FOR_RENT) RENTER VIEWING)


Related Discussions:- Identify all renters who have viewed all properties

Express the queries in relational algebra, Question: This question refe...

Question: This question refers to the database schema. a) Express the following queries in SQL: (i) Write the SQL code that will create the table Company. Your answer sh

What are the different types of interfaces provided by dbms, Question 1 Su...

Question 1 Suppose the employee employee id, name, designation, salary, attendance and address of any employee has to be stored in a database. You can store these data in a sequen

Can you delete data element, Can we delete data element, which is being use...

Can we delete data element, which is being used by table fields. No we cant delete data element.

What is sql profiler, What is SQL Profiler? SQL Profiler is a graphical...

What is SQL Profiler? SQL Profiler is a graphical tool that permits system administrators to monitor events in an instance of Microsoft SQL Server. You can capture and save dat

Draw an er diagram with primary key for a farm, Draw an ER diagram that rep...

Draw an ER diagram that represents the information described below. Show all entity sets, relationship sets, primary keys, and the mapping cardinality of the relationship sets.

What is mysql, What is MySQL? MySQL is a relational database management...

What is MySQL? MySQL is a relational database management system which has eleven million installations. It can be used for both Linux and Window. Managing database includes add

Create table statements for original database, MySQL statements for extendi...

MySQL statements for extending the database to incorporate new facilities Deliverables for submission You must submit the following deliverables in the Assignment Dropbox in

Function module and a normal abap/4 subroutine, What is the difference betw...

What is the difference between the function module and a normal ABAP/4 subroutine? In contrast to normal subroutines function modules have uniquely exact interface.  Declaring da

Define what Immediate database modification technique uses, Define what Imm...

Define what Immediate database modification technique uses?  Ans: Both undo and redo.

What are the overlapping elements, What are the Overlapping elements O...

What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them

Write Your Message!

Captcha
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