Add SQL file

+CREATE DATABASE attendance DEFAULT CHARACTER SET UTF8;
+use attendance;
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+CREATE TABLE lecture(
+lecture_id VARCHAR(20) NOT NULL,
+lecture_name VARCHAR(50),
+lecture_room VARCHAR(50) NOT NULL,
+PRIMARY KEY(lecture_id)
+);
+
+CREATE TABLE lecture_students(
+lecture_id VARCHAR(20) NOT NULL,
+student_id VARCHAR(10) NOT NULL,
+FOREIGN KEY (lecture_id) REFERENCES lecture(lecture_id),
+FOREIGN KEY (student_id) REFERENCES student(student_id)
+);
+
+CREATE TABLE student_attendance(
+lecture_id VARCHAR(20) NOT NULL,
+student_id VARCHAR(10) NOT NULL,
+attendance_date DATE NOT NULL, 
+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,
+width SMALLINT NOT NULL,
+height SMALLINT NOT NULL,
+FOREIGN KEY (lecture_id) REFERENCES lecture(lecture_id)
+);
+
+CREATE TABLE lecture_schedule(
+lecture_id VARCHAR(20) NOT NULL,
+lecture_day VARCHAR(20) NOT NULL,
+lecture_start_time TIME NOT NULL,
+lecture_end_time TIME NOT NULL,
+FOREIGN KEY (lecture_id) REFERENCES lecture(lecture_id)
+);
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+CREATE TABLE student(
+student_id VARCHAR(10) NOT NULL,
+student_name VARCHAR(50) NOT NULL,
+PRIMARY KEY(student_id)
+);
+
+CREATE TABLE student_embedding(
+student_id VARCHAR(10) NOT NULL,
+embedding_date DATE NOT NULL,
+embedding BLOB NOT NULL,
+FOREIGN KEY (student_id) REFERENCES student(student_id)
+);
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