Update DB schema

 CREATE DATABASE attendance DEFAULT CHARACTER SET UTF8;
 use attendance;
+
+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)
+);
+
 CREATE TABLE lecture(
 lecture_id VARCHAR(20) NOT NULL,
 lecture_name VARCHAR(50),
@@ -38,17 +52,4 @@ lecture_room VARCHAR(50) NOT NULL,
 lecture_start_time TIME NOT NULL,
 lecture_end_time TIME NOT NULL,
 FOREIGN KEY (lecture_id) REFERENCES lecture(lecture_id)
-);
-
-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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