Given the following database schema, write relational algebra (not SQL) expressions for the questions below: Manufacturer (Manufacturer_id, name, address) Produced(Manufacturer_id, Part_id, Quantity) Part(Part_id, name, price) 1. List names of manufacturers and the names of the parts they produced. 2. List the name of each manufacturer who produced all parts that are recorded in the Part relation. 3. List the names of each part when a number of 50 or more of that parts are produced. Note that this quantity can be produced by one manufacturer of more. 4. List the names of manufacturers who live in "Hebron".

Given the following database schema, write relational algebra (not SQL) expressions for the questions below: Manufacturer (Manufacturer_id, name, address) Produced(Manufacturer_id, Part_id, Quantity) Part(Part_id, name, price) 1. List names of manufacturers and the names of the parts they produced. 2. List the name of each manufacturer who produced all parts that are recorded in the Part relation. 3. List the names of each part when a number of 50 or more of that parts are produced. Note that this quantity can be produced by one manufacturer of more. 4. List the names of manufacturers who live in "Hebron".

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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