8. Write a Relational Algebra expression to represent the following SQL statement: select building, room_number, section.course_id, title from section, time_slot, course where section.time_slot_id = time_slot.time_slot_id %D and section.course_id = course.course_id %3D and building = 'Painter' %3D and semester = 'Spring' and day = 'F'; %3D

8. Write a Relational Algebra expression to represent the following SQL statement: select building, room_number, section.course_id, title from section, time_slot, course where section.time_slot_id = time_slot.time_slot_id %D and section.course_id = course.course_id %3D and building = 'Painter' %3D and semester = 'Spring' and day = 'F'; %3D

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Intermediate SQL Concepts

A query is a request for data or information from one or more database tables. This information could be presented in the form of pictorials, graphs, or complicated findings which helps in easy interpretation. Structured Query Language (SQL) is the most widely used programming language for retrieving and organizing data from relational databases. Collection of tables with rows and columns is referred to as a database. SQL is the language of databases. It makes it easier to extract specific data from databases, which can then be used for analysis.

Question

8. Write a Relational Algebra expression to represent the following SQL statement:
select building, room_number, section.course_id, title
from section, time_slot, course
where section.time_slot_id = time_slot.time_slot_id
and section.course_id = course.course_id
and building = 'Painter'
and semester = 'Spring'
and day = 'F';

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