Use the following schemas for this que Product (maker, model, type) PC (model, speed, ram, hd, price) Laptop (model, speed, ram, hd, screen, price) Printer (model, color, type, price) Vhich manufacturers make color printers? Jote that your answer should be in 1 combined relational algebra expression. Use CAPITAL words in place of symbols, (e.g. ELECTION, PROJECTION, NATURAL JOIN, AND, OR, ...)

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
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Use the following schemas for this question.
Product (maker, model, type)
PC (model, speed, ram, hd, price)
Laptop (model, speed, ram, hd, screen, price)
Printer (model, color, type, price)
Which manufacturers make color printers?
Note that your answer should be in 1 combined relational algebra expression. Use CAPITAL words in place of symbols, (e.g.
SELECTION, PROJECTION, NATURAL JOIN, AND, OR, ...)
Transcribed Image Text:Use the following schemas for this question. Product (maker, model, type) PC (model, speed, ram, hd, price) Laptop (model, speed, ram, hd, screen, price) Printer (model, color, type, price) Which manufacturers make color printers? Note that your answer should be in 1 combined relational algebra expression. Use CAPITAL words in place of symbols, (e.g. SELECTION, PROJECTION, NATURAL JOIN, AND, OR, ...)
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