2020-1-capstone-design1 / KHY_Project1

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f82506d1 1 parent 82b2f64a

Modify table lecture_students

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Showing 1 changed file with 3 additions and 4 deletions
......@@ -7,7 +7,7 @@ PRIMARY KEY(lecture_id)
CREATE TABLE lecture_students(
lecture_id VARCHAR(20) NOT NULL,
student_id VARCHAR(10) NOT NULL,
student_id VARCHAR(10) UNIQUE,
FOREIGN KEY (lecture_id) REFERENCES lecture(lecture_id),
FOREIGN KEY (student_id) REFERENCES student(student_id)
);
......@@ -16,15 +16,14 @@ CREATE TABLE student_attendance(
lecture_id VARCHAR(20) NOT NULL,
student_id VARCHAR(10) NOT NULL,
status VARCHAR(10) NOT NULL,
timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
attendance_time DATETIME DEFAULT CURRENT_TIMESTAMP,
FOREIGN KEY (lecture_id) REFERENCES lecture(lecture_id),
FOREIGN KEY (student_id) REFERENCES student(student_id)
);
CREATE TABLE undefined_image(
lecture_id VARCHAR(20) NOT NULL,
date DATE NOT NULL,
image BLOB NOT NULL,
image MEDIUMBLOB NOT NULL,
width SMALLINT NOT NULL,
height SMALLINT NOT NULL,
timestamp DATETIME DEFAULT CURRENT_TIMESTAMP,
......