mysql_schemas.sql

Create table If Not Exists Students (student_id int, student_name varchar(20));
Create table If Not Exists Subjects (subject_name varchar(20));
Create table If Not Exists Examinations (student_id int, subject_name varchar(20));
Truncate table Students;
insert into Students (student_id, student_name) values ('1', 'Alice');
insert into Students (student_id, student_name) values ('2', 'Bob');
insert into Students (student_id, student_name) values ('13', 'John');
insert into Students (student_id, student_name) values ('6', 'Alex');
Truncate table Subjects;
insert into Subjects (subject_name) values ('Math');
insert into Subjects (subject_name) values ('Physics');
insert into Subjects (subject_name) values ('Programming');
Truncate table Examinations;
insert into Examinations (student_id, subject_name) values ('1', 'Math');
insert into Examinations (student_id, subject_name) values ('1', 'Physics');
insert into Examinations (student_id, subject_name) values ('1', 'Programming');
insert into Examinations (student_id, subject_name) values ('2', 'Programming');
insert into Examinations (student_id, subject_name) values ('1', 'Physics');
insert into Examinations (student_id, subject_name) values ('1', 'Math');
insert into Examinations (student_id, subject_name) values ('13', 'Math');
insert into Examinations (student_id, subject_name) values ('13', 'Programming');
insert into Examinations (student_id, subject_name) values ('13', 'Physics');
insert into Examinations (student_id, subject_name) values ('2', 'Math');
insert into Examinations (student_id, subject_name) values ('1', 'Math');