Answered: Having the following table structure…

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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Question

Having the following table structure (see image). Write MYSQL for:

(4) Which students (student first name, student last name) have taken the course “Database
Systems”?
(5) List all students (student first name, student last name) who have taken both “Database
Systems” and “C++”.
(6) List all students (student ID, student first Name, student last Name) and the courses (course
name, course grade) that they have taken. If there are students who have not taken any
course yet, the query result should reflect that (i.e. null for courseName, null for grade).
(7) Find all students who have taken computer science courses (i.e. course codes CS***). For the
result, list student first name, student last name, and the computer science course names
that they have taken.

CREATE TABLE STUDENTS (
StudentId CHAR(11),
FirstName VARCHAR(20) NOT NULL,
LastName VARCHAR(20) NOT NULL,
Gender CHAR(1) NOT NULL,
DateOfBirth DATE NOT NULL,
PRIMARY KEY (StudentId)
);
CREATE TABLE COURSES (
CourseCode VARCHAR(6),
CourseName VARCHAR(70) NOT NULL,
Level CHAR(2),
Credits INT NOT NULL,
PRIMARY KEY (CourseCode)
);
CREATE TABLE Registration (
StudentId CHAR(11),
CourseCode VARCHAR(6),
Grade DECIMAL (2, 1) NOT NULL,
PRIMARY KEY (StudentId, CourseCode),
FOREIGN KEY (StudentId) REFERENCES STUDENTS (StudentId) ON UPDATE CASCADE,
FOREIGN KEY (CourseCode) REFERENCES COURSES (CourseCode) ON UPDATE CASCADE
);

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