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2.18 Write the following queries in relational algebra, using the university schema. A. Find the ID and name of each instructor in the Physics department. Page 63 B. Find the ID and name of each instructor in a department located in the building "Watson." C. Find the ID and name of each student who has taken at least one course in the "Comp. Sci." department. D. Find the ID and name of each student who has taken at least one course section in the year 2018.

2.18 Write the following queries in relational algebra, using the university schema. A. Find the ID and name of each instructor in the Physics department. Page 63 B. Find the ID and name of each instructor in a department located in the building "Watson." C. Find the ID and name of each student who has taken at least one course in the "Comp. Sci." department. D. Find the ID and name of each student who has taken at least one course section in the year 2018.

Database System Concepts
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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2.18 Write the following queries in relational algebra, using the university schema. A. Find the ID and name of each instructor in the Physics department. Page 63 B. Find the ID and name of each instructor in a department located in the building "Watson." C. Find the ID and name of each student who has taken at least one course in the "Comp. Sci." department. D. Find the ID and name of each student who has taken at least one course section in the year 2018.
Transcribed Image Text:2.18 Write the following queries in relational algebra, using the university schema. A. Find the ID and name of each instructor in the Physics department. Page 63 B. Find the ID and name of each instructor in a department located in the building "Watson." C. Find the ID and name of each student who has taken at least one course in the "Comp. Sci." department. D. Find the ID and name of each student who has taken at least one course section in the year 2018.
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