Consider the following relational schema: Course (cid, cname, dept, credit) Student (sid, sname, dept, gpa) Enroll (cid, sid, grade, semester) The meaning of these relations is straightforward and the keys are underlined. Write the following queries in SQL. d) Find the name s of students who took courses offered by CS department and no other department. e) Find the names of all classes that have 10 or more students enrolled.
Consider the following relational schema: Course (cid, cname, dept, credit) Student (sid, sname, dept, gpa) Enroll (cid, sid, grade, semester) The meaning of these relations is straightforward and the keys are underlined. Write the following queries in SQL. d) Find the name s of students who took courses offered by CS department and no other department. e) Find the names of all classes that have 10 or more students enrolled.
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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Consider the following relational schema:
Course (cid, cname, dept, credit)
Student (sid, sname, dept, gpa)
Enroll (cid, sid, grade, semester)
The meaning of these relations is straightforward and the keys are underlined. Write the
following queries in SQL.
d) Find the name s of students who took courses offered by CS department and no
other department.
e) Find the names of all classes that have 10 or more students enrolled.
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