initial commit

2025-11-28 16:27:38 -08:00
commit 9b8a13f429
@@ -0,0 +1,48 @@
+-- 1.
+SELECT le_section_id, lab_set_code, course_code, la_title, lab_day_of_week
+FROM lab_event
+INNER JOIN lab_section
+ON lab_section.lab_section_id = lab_event.le_section_id
+INNER JOIN lab_assignment
+ON lab_assignment.la_lab_number = lab_event.le_number
+WHERE term_code = '202530';
+
+-- 2.
+SELECT pgr_student_id, COUNT(*) AS labs_attended
+FROM progress
+GROUP BY pgr_student_id;
+
+-- 3.
+SELECT pgr_student_id, student_set_code, lab_section_id, COUNT(*) FILTER (WHERE pgr_late 1= 'f') AS late_submissions
+FROM progress
+INNER JOIN student
+ON student.student_id = progress.pgr_student_id
+INNER JOIN lab_section
+ON student.student_set_code = lab_section.lab_set_code
+GROUP BY pgr_student_id, student_set_code, lab_section_id;
+
+-- 4.
+SELECT student_set_code, TO_CHAR(AVG(pgr_instructor_assessment::numeric), 'FM999999.00') AS section_average
+FROM progress
+INNER JOIN student
+    ON student.student_id = progress.pgr_student_id
+GROUP BY student_set_code
+ORDER BY student_set_code;
+
+-- 5.
+SELECT student_first_name || ' ' || student_last_name AS student_name, student_set_code, le_number
+FROM student
+INNER JOIN progress
+ON progress.pgr_student_id = student.student_id
+INNER JOIN lab_event
+ON lab_event.le_id = progress.pgr_event_id
+WHERE pgr_instructor_assessment IS NULL OR pgr_self_assessment IS NULL;
+
+-- 6.
+SELECT student_id, student_first_name || ' ' || student_last_name AS student_name, student_set_code, TO_CHAR(AVG(pgr_instructor_assessment::numeric), 'FM999999.00') AS student_average
+FROM student
+JOIN progress
+ON student.student_id = progress.pgr_student_id
+GROUP BY student_id, student_first_name, student_last_name, student_set_code
+HAVING AVG(pgr_instructor_assessment::numeric) >= 4.5
+ORDER BY student_id;
@@ -0,0 +1,56 @@
+CREATE OR REPLACE VIEW ta_view AS
+SELECT
+    ls.lab_section_id                AS lab_section,
+    e.le_id,
+    s.student_id,
+    s.student_first_name || ' ' ||
+    s.student_last_name             AS full_name,
+    p.pgr_attendance,
+    p.pgr_inlab_submission_link,
+    p.pgr_instructor_assessment
+FROM progress p
+JOIN student s
+  ON p.pgr_student_id = s.student_id
+JOIN lab_event e
+  ON p.pgr_event_id = e.le_id
+JOIN lab_section ls
+  ON e.le_section_id = ls.lab_section_id;
+
+CREATE OR REPLACE VIEW v_section_overview AS
+SELECT
+    t.term_code,
+    ss.set_code AS set_name,
+    c.course_code,
+    ls.lab_section_id AS section_id,
+    COUNT(DISTINCT le.le_id) AS total_events,
+    AVG(CAST(p.pgr_instructor_assessment AS NUMERIC)) AS avg_instructor_assessment
+FROM lab_section   AS ls
+JOIN course        AS c  ON c.course_code = ls.lab_course_code
+JOIN term          AS t  ON t.term_code   = ls.lab_term_code
+JOIN student_set   AS ss ON ss.set_code   = ls.lab_set_code
+LEFT JOIN lab_event AS le
+       ON le.le_section_id = ls.lab_section_id
+      AND le.course_code   = ls.lab_course_code
+      AND le.term_code     = ls.lab_term_code
+LEFT JOIN progress   AS p
+       ON p.pgr_event_id = le.le_id
+GROUP BY
+    t.term_code,
+    ss.set_code,
+    c.course_code,
+    ls.lab_section_id;
+
+--everything from section
+SELECT *
+FROM v_section_overview
+ORDER BY term_code, set_name, course_code, section_id;
+
+-- only sections that actually have events
+SELECT *
+FROM v_section_overview
+WHERE total_events > 0
+ORDER BY total_events DESC;
+
+--This is the view for ta
+SELECT *
+FROM ta_view;
@@ -0,0 +1,11 @@
+-- 1. Create a role for TAs
+CREATE ROLE ta_role;
+
+-- 2. Allow this role to view your TA-related views
+GRANT SELECT ON v_ta_progress_summary, v_section_overview TO ta_role;
+
+-- 3. Create a demo user (only works if your server allows user creation)
+CREATE USER ta_demo WITH PASSWORD 'ta_demo123';
+
+-- 4. Give the demo user the TA role
+GRANT ta_role TO ta_demo;
@@ -0,0 +1,44 @@
+Primary Keys
+For our design, we decided to go with natural primary keys for all tables because the data we were given in the CSVs already included unique identifiers that made sense in the real world.
+ We didn’t see a reason to generate artificial IDs since each table had something that was already unique and meaningful.
+Natural PKs we used:
+course_code – e.g. COMP1510
+term_code – e.g. 202530
+student_set – e.g. SETD
+student – uses student_id (like A001)
+lab_section – uses lab_section_id (like L01)
+lab_assignment – uses la_assignment_id (like LAB01)
+lab_event – uses le_id (like L01-L01)
+user_account, progress, and progress_change_log also use text-based IDs that are unique.
+
+Foreign Keys & Relationships
+We made sure every relationship matched the business rules:
+Students must belong to a Set, and the student_set_code can’t be null.
+ If a set code changes, it cascades to all students (ON UPDATE CASCADE).
+Lab Sections link to a Course, Term, and Set. All of those are required and set to cascade on update too.
+Lab Events belong to a Lab Section, and we used a composite foreign key (le_section_id, course_code, term_code) to make sure the event always matches the correct section, course, and term. We also added ON DELETE CASCADE so deleting a section deletes its events automatically.
+Student_Section connects students to lab sections, and if a section gets deleted, the link goes with it.
+Progress connects a student to a lab event. Deleting an event now also deletes any related progress (we used ON DELETE CASCADE for that).
+Progress Change Log connects to both progress and user_account. Deleting a progress record removes its log, but deleting a user is blocked to protect the audit trail.
+
+Uniqueness & Constraints
+Student emails must be unique (no duplicate addresses).
+Each combination of (lab_section_id, lab_course_code, lab_term_code) is unique to prevent mix-ups between sections.
+Term codes must follow the six-digit format (CHECK (term_code ~ '^[0-9]{6}$')).
+Course credits must be between 1 and 9.
+lab_event checks that le_ends_at is after le_starts_at.
+progress checks that pgr_polished_submitted_at is after pgr_inlab_submitted_at when both are present.
+Boolean fields like pgr_prepared and pgr_late default to FALSE.
+
+Cascading Logic
+We used cascading only when it made logical sense:
+Deleting a lab_section removes its lab_events, which also removes any related progress and change logs automatically.
+For tables like user_account, we kept delete restricted so we don’t lose audit history.
+
+Naming Conventions
+We used prefixes to make joins easier and keep things organized.
+ For example:
+le_ for lab_event columns,
+pgr_ for progress,
+chl_ for progress_change_log.
+Also, every constraint is named properly (pk_, fk_, ck_, uq_) so if there’s an error, it’s obvious where it came from.
@@ -0,0 +1,168 @@
+DROP SCHEMA IF EXISTS lab_tracker_group_22 CASCADE;
+CREATE SCHEMA lab_tracker_group_22;
+SET search_path TO lab_tracker_group_22;
+
+DROP TABLE IF EXISTS progress_change_log;
+DROP TABLE IF EXISTS progress;
+DROP TABLE IF EXISTS lab_event;
+DROP TABLE IF EXISTS lab_assignment;
+DROP TABLE IF EXISTS student_section;
+DROP TABLE IF EXISTS lab_section;
+DROP TABLE IF EXISTS student;
+DROP TABLE IF EXISTS user_account;
+DROP TABLE IF EXISTS student_set;
+DROP TABLE IF EXISTS term;
+DROP TABLE IF EXISTS course;
+
+CREATE TABLE course (
+ course_code    VARCHAR(20)  CONSTRAINT pk_course PRIMARY KEY,
+ course_title   VARCHAR(200),
+ credits        NUMERIC(3,0)
+   CONSTRAINT ck_course_credits CHECK (credits BETWEEN 1 AND 9)
+);
+
+CREATE TABLE term (
+ term_code        VARCHAR(10)  CONSTRAINT pk_term PRIMARY KEY,
+ term_name        VARCHAR(50),
+ term_start_date  DATE,
+ term_end_date    DATE,
+ CONSTRAINT ck_term_code_fmt CHECK (term_code ~ '^[0-9]{6}$')
+);
+
+CREATE TABLE student_set (
+ set_code     VARCHAR(10) CONSTRAINT pk_student_set PRIMARY KEY,
+ set_campus   VARCHAR(50)
+);
+
+CREATE TABLE user_account (
+ user_id        VARCHAR(50) CONSTRAINT pk_user_account PRIMARY KEY,
+ user_full_name VARCHAR(120) NOT NULL,
+ user_role      VARCHAR(30),
+ user_email     VARCHAR(120) CONSTRAINT uq_user_email UNIQUE
+);
+
+
+CREATE TABLE student (
+ student_id         VARCHAR(30) CONSTRAINT pk_student PRIMARY KEY,
+ student_set_code   VARCHAR(10)  NOT NULL,
+ student_first_name VARCHAR(80)  NOT NULL,
+ student_last_name  VARCHAR(80)  NOT NULL,
+ student_email      VARCHAR(120),
+ CONSTRAINT uq_student_email UNIQUE (student_email),
+ CONSTRAINT fk_student_set
+   FOREIGN KEY (student_set_code)
+   REFERENCES student_set(set_code)
+   ON UPDATE CASCADE
+);
+
+CREATE TABLE lab_section (
+ lab_section_id     VARCHAR(20) CONSTRAINT pk_lab_section PRIMARY KEY,
+ lab_course_code    VARCHAR(20) NOT NULL,
+ lab_term_code      VARCHAR(10) NOT NULL,
+ lab_set_code       VARCHAR(10) NOT NULL,
+ lab_section_type   VARCHAR(10),
+ lab_day_of_week    VARCHAR(10),
+ lab_start_time     TIME,
+ lab_end_time       TIME,
+ lab_location       VARCHAR(100),
+
+ CONSTRAINT fk_lab_section_course FOREIGN KEY (lab_course_code)
+   REFERENCES course(course_code) ON UPDATE CASCADE,
+ CONSTRAINT fk_lab_section_term FOREIGN KEY (lab_term_code)
+   REFERENCES term(term_code) ON UPDATE CASCADE,
+ CONSTRAINT fk_lab_section_set FOREIGN KEY (lab_set_code)
+   REFERENCES student_set(set_code) ON UPDATE CASCADE,
+
+ CONSTRAINT uq_lab_section_triplet
+   UNIQUE (lab_section_id, lab_course_code, lab_term_code)
+);
+
+CREATE TABLE student_section (
+ ss_section_id  VARCHAR(20) NOT NULL,
+ ss_student_id  VARCHAR(30) NOT NULL,
+ CONSTRAINT pk_student_section PRIMARY KEY (ss_section_id, ss_student_id),
+ CONSTRAINT fk_student_section_section FOREIGN KEY (ss_section_id)
+   REFERENCES lab_section(lab_section_id) ON DELETE CASCADE ON UPDATE CASCADE,
+ CONSTRAINT fk_student_section_student FOREIGN KEY (ss_student_id)
+   REFERENCES student(student_id) ON UPDATE CASCADE
+);
+
+CREATE TABLE lab_assignment (
+ la_assignment_id  VARCHAR(20) CONSTRAINT pk_lab_assignment PRIMARY KEY,   la_course_code    VARCHAR(20) NOT NULL,
+ la_term_code      VARCHAR(10),
+ la_lab_number     INTEGER,
+ la_title          VARCHAR(200),
+ CONSTRAINT fk_assignment_course FOREIGN KEY (la_course_code)
+   REFERENCES course(course_code) ON UPDATE CASCADE,
+ CONSTRAINT fk_assignment_term FOREIGN KEY (la_term_code)
+   REFERENCES term(term_code) ON UPDATE CASCADE
+);
+
+CREATE TABLE lab_event (
+ le_id          VARCHAR(32) CONSTRAINT pk_lab_event PRIMARY KEY,
+ le_section_id  VARCHAR(20) NOT NULL,
+ course_code    VARCHAR(20) NOT NULL,
+ term_code      VARCHAR(10) NOT NULL,
+ le_number      INTEGER NOT NULL,
+ le_starts_at   TIMESTAMP NOT NULL,
+ le_ends_at     TIMESTAMP NOT NULL,
+ le_due_at      TIMESTAMP,
+ le_location    VARCHAR(100),
+
+ CONSTRAINT fk_event_section_triplet
+   FOREIGN KEY (le_section_id, course_code, term_code)
+   REFERENCES lab_section (lab_section_id, lab_course_code, lab_term_code)
+   ON UPDATE CASCADE
+   ON DELETE CASCADE,
+
+ CONSTRAINT ck_event_time_order CHECK (le_ends_at > le_starts_at)
+);
+
+CREATE TABLE progress (
+ pgr_id                        VARCHAR(50)  CONSTRAINT pk_progress PRIMARY KEY,
+ pgr_student_id                VARCHAR(30)  NOT NULL,
+ pgr_event_id                  VARCHAR(32)  NOT NULL,
+ pgr_lab_number                INTEGER,
+ pgr_status                    VARCHAR(50),
+ pgr_prepared                  BOOLEAN     NOT NULL DEFAULT FALSE,
+ pgr_attendance                VARCHAR(20),
+ pgr_inlab_submitted_at        TIMESTAMP,
+ pgr_inlab_submission_link     TEXT,
+ pgr_polished_submitted_at     TIMESTAMP,
+ pgr_polished_submission_link  TEXT,
+ pgr_instructor_assessment     TEXT,
+ pgr_self_assessment           TEXT,
+ pgr_late                      BOOLEAN     NOT NULL DEFAULT FALSE,
+
+ CONSTRAINT fk_prog_student
+   FOREIGN KEY (pgr_student_id)
+   REFERENCES student(student_id)
+   ON UPDATE CASCADE,
+
+  CONSTRAINT fk_prog_event
+   FOREIGN KEY (pgr_event_id)
+   REFERENCES lab_event(le_id)
+   ON UPDATE CASCADE
+   ON DELETE CASCADE,
+
+ CONSTRAINT ck_prog_time_order CHECK (
+   pgr_polished_submitted_at IS NULL
+   OR pgr_inlab_submitted_at IS NULL
+   OR pgr_polished_submitted_at >= pgr_inlab_submitted_at
+ )
+);
+
+CREATE TABLE progress_change_log (
+ chl_change_id    VARCHAR(20)  CONSTRAINT pk_progress_change_log PRIMARY KEY,
+ chl_progress_id  VARCHAR(50)  NOT NULL,
+ chl_changed_by   VARCHAR(50)  NOT NULL,
+ chl_changed_at   TIMESTAMP    NOT NULL,
+ chl_field        VARCHAR(100) NOT NULL,
+ chl_old_value    VARCHAR(255),
+ chl_new_value    VARCHAR(255),
+ chl_reason       TEXT,
+ CONSTRAINT fk_chglog_progress FOREIGN KEY (chl_progress_id)
+   REFERENCES progress(pgr_id) ON DELETE CASCADE ON UPDATE CASCADE,
+ CONSTRAINT fk_chglog_user FOREIGN KEY (chl_changed_by)
+   REFERENCES user_account(user_id) ON UPDATE CASCADE
+);
@@ -0,0 +1,186 @@
+-- Clean DB before inserting
+TRUNCATE TABLE progress_change_log CASCADE;
+TRUNCATE TABLE progress CASCADE;
+TRUNCATE TABLE lab_event CASCADE;
+TRUNCATE TABLE lab_assignment CASCADE;
+TRUNCATE TABLE student_section CASCADE;
+TRUNCATE TABLE lab_section CASCADE;
+TRUNCATE TABLE student CASCADE;
+TRUNCATE TABLE user_account CASCADE;
+TRUNCATE TABLE student_set CASCADE;
+TRUNCATE TABLE term CASCADE;
+TRUNCATE TABLE course CASCADE;
+
+-- Insert courses
+INSERT INTO course
+(course_code, course_title, credits)
+VALUES
+('COMP2714', 'Relational Database Systems', 3);
+
+-- Insert terms
+INSERT INTO term
+(term_code, term_name, term_start_date, term_end_date)
+VALUES
+('202510', 'Winter 2025', '2025-01-06', '2025-04-11'),
+('202520', 'Spring/Summer 2025', '2025-04-28', '2025-08-08'),
+('202530', 'Fall 2025', '2025-09-02', '2025-12-12');
+
+-- Insert student sets
+INSERT INTO student_set
+(set_code, set_campus)
+VALUES
+('A', 'Burnaby'),
+('B', 'Burnaby'),
+('C', 'Burnaby'),
+('D', 'Burnaby'),
+('E', 'Downtown'),
+('F', 'Downtown');
+
+-- Insert users
+INSERT INTO user_account
+(user_id, user_full_name, user_role, user_email)
+VALUES
+('u_instructor', 'Maryam Khezrzadeh', 'instructor', 'mkhezrzadeh@bcit.ca'),
+('u_ta1', 'Daniel Saavedra', 'ta', 'dsaavedra@bcit.ca'),
+('u_system', 'Lab Tracker System', 'system', 'noreply@labtracker.local');
+
+-- Insert students
+INSERT INTO student
+(student_id, student_set_code, student_first_name, student_last_name, student_email)
+VALUES
+('A001', 'A', 'Ava', 'Nguyen', 'ava.nguyen@my.bcit.ca'),
+('A002', 'A', 'Noah', 'Kim', 'noah.kim@my.bcit.ca'),
+('A003', 'A', 'Oliver', 'Singh', 'oliver.singh@my.bcit.ca'),
+('B001', 'B', 'Maya', 'Fischer', 'maya.fischer@my.bcit.ca'),
+('B002', 'B', 'Leo', 'Park', 'leo.park@my.bcit.ca'),
+('B003', 'B', 'Zoé', 'Martin', 'zoe.martin@my.bcit.ca'),
+('C001', 'C', 'Sofia', 'Chen', 'sofia.chen@my.bcit.ca'),
+('C002', 'C', 'Arjun', 'Patel', 'arjun.patel@my.bcit.ca'),
+('C003', 'C', 'Liam', 'O’Reilly', 'liam.oreilly@my.bcit.ca'),
+('D001', 'D', 'Layla', 'Haddad', 'layla.haddad@my.bcit.ca'),
+('D002', 'D', 'Ethan', 'Wong', 'ethan.wong@my.bcit.ca'),
+('D003', 'D', 'Nora', 'Iverson', 'nora.iverson@my.bcit.ca'),
+('E001', 'E', 'Diego', 'Alvarez', 'diego.alvarez@my.bcit.ca'),
+('E002', 'E', 'Hana', 'Yamamoto', 'hana.yamamoto@my.bcit.ca'),
+('E003', 'E', 'Farah', 'Rahimi', 'farah.rahimi@my.bcit.ca'),
+('F001', 'F', 'Marco', 'Russo', 'marco.russo@my.bcit.ca'),
+('F002', 'F', 'Amir', 'Kazemi', 'amir.kazemi@my.bcit.ca'),
+('F003', 'F', 'Chloe', 'Dubois', 'chloe.dubois@my.bcit.ca');
+
+-- Insert lab sections
+INSERT INTO lab_section
+(lab_section_id, lab_course_code, lab_term_code, lab_set_code, lab_section_type, lab_day_of_week, lab_start_time, lab_end_time, lab_location)
+VALUES
+('L01', 'COMP2714', '202530', 'A', 'LAB', 'Mon', '09:30', '11:20', 'BBY-SW01-3460'),
+('L02', 'COMP2714', '202530', 'B', 'LAB', 'Mon', '13:30', '15:20', 'BBY-SW01-3465'),
+('L03', 'COMP2714', '202530', 'C', 'LAB', 'Tue', '18:30', '20:20', 'BBY-SW03-2605'),
+('L04', 'COMP2714', '202530', 'D', 'LAB', 'Wed', '09:30', '11:20', 'BBY-SE12-101'),
+('L05', 'COMP2714', '202530', 'E', 'LAB', 'Wed', '13:30', '15:20', 'DTC-310'),
+('L06', 'COMP2714', '202530', 'F', 'LAB', 'Thu', '18:30', '20:20', 'DTC-318');
+
+-- Insert lab assignments
+INSERT INTO lab_assignment
+(la_assignment_id, la_course_code, la_term_code, la_lab_number, la_title)
+VALUES
+('LAB01', 'COMP2714', '202530', 1, 'Environment Setup & Intro SQL'),
+('LAB02', 'COMP2714', '202530', 2, 'Conceptual → Logical Mapping'),
+('LAB03', 'COMP2714', '202530', 3, 'Logical ERD & Constraints'),
+('LAB04', 'COMP2714', '202530', 4, 'Normalization to 3NF'),
+('LAB05', 'COMP2714', '202530', 5, 'DDL Implementation'),
+('LAB06', 'COMP2714', '202530', 6, 'DML: INSERT/UPDATE/DELETE'),
+('LAB07', 'COMP2714', '202530', 7, 'SELECT & JOIN Practice'),
+('LAB08', 'COMP2714', '202530', 8, 'Views & Indexes');
+
+-- Insert student enrollments by set → section
+INSERT INTO student_section (ss_section_id, ss_student_id) VALUES
+('L01', 'A001'),
+('L01', 'A002'),
+('L01', 'A003'),
+('L02', 'B001'),
+('L02', 'B002'),
+('L02', 'B003'),
+('L03', 'C001'),
+('L03', 'C002'),
+('L03', 'C003'),
+('L04', 'D001'),
+('L04', 'D002'),
+('L04', 'D003'),
+('L05', 'E001'),
+('L05', 'E002'),
+('L05', 'E003'),
+('L06', 'F001'),
+('L06', 'F002'),
+('L06', 'F003');
+
+
+-- Insert lab events
+INSERT INTO lab_event
+(le_id, le_section_id, course_code, term_code, le_number, le_starts_at, le_ends_at, le_due_at, le_location)
+VALUES
+('L01-L01', 'L01', 'COMP2714', '202530', 1, '2025-09-08 09:30', '2025-09-08 11:20', '2025-09-14 23:59', 'BBY-SW01-3460'),
+('L01-L02', 'L01', 'COMP2714', '202530', 2, '2025-09-15 09:30', '2025-09-15 11:20', '2025-09-21 23:59', 'BBY-SW01-3460'),
+('L01-L03', 'L01', 'COMP2714', '202530', 3, '2025-09-22 09:30', '2025-09-22 11:20', '2025-09-28 23:59', 'BBY-SW01-3460'),
+('L02-L01', 'L02', 'COMP2714', '202530', 1, '2025-09-08 13:30', '2025-09-08 15:20', '2025-09-14 23:59', 'BBY-SW01-3465'),
+('L02-L02', 'L02', 'COMP2714', '202530', 2, '2025-09-15 13:30', '2025-09-15 15:20', '2025-09-21 23:59', 'BBY-SW01-3465'),
+('L02-L03', 'L02', 'COMP2714', '202530', 3, '2025-09-22 13:30', '2025-09-22 15:20', '2025-09-28 23:59', 'BBY-SW01-3465'),
+('L03-L01', 'L03', 'COMP2714', '202530', 1, '2025-09-09 18:30', '2025-09-09 20:20', '2025-09-14 23:59', 'BBY-SW03-2605'),
+('L03-L02', 'L03', 'COMP2714', '202530', 2, '2025-09-16 18:30', '2025-09-16 20:20', '2025-09-21 23:59', 'BBY-SW03-2605'),
+('L03-L03', 'L03', 'COMP2714', '202530', 3, '2025-09-23 18:30', '2025-09-23 20:20', '2025-09-28 23:59', 'BBY-SW03-2605'),
+('L04-L01', 'L04', 'COMP2714', '202530', 1, '2025-09-10 09:30', '2025-09-10 11:20', '2025-09-14 23:59', 'BBY-SE12-101'),
+('L04-L02', 'L04', 'COMP2714', '202530', 2, '2025-09-17 09:30', '2025-09-17 11:20', '2025-09-21 23:59', 'BBY-SE12-101'),
+('L04-L03', 'L04', 'COMP2714', '202530', 3, '2025-09-24 09:30', '2025-09-24 11:20', '2025-09-28 23:59', 'BBY-SE12-101'),
+('L05-L01', 'L05', 'COMP2714', '202530', 1, '2025-09-10 13:30', '2025-09-10 15:20', '2025-09-15 09:00', 'DTC-310'),
+('L05-L02', 'L05', 'COMP2714', '202530', 2, '2025-09-17 13:30', '2025-09-17 15:20', '2025-09-22 09:00', 'DTC-310'),
+('L05-L03', 'L05', 'COMP2714', '202530', 3, '2025-09-24 13:30', '2025-09-24 15:20', '2025-09-29 09:00', 'DTC-310'),
+('L06-L01', 'L06', 'COMP2714', '202530', 1, '2025-09-11 18:30', '2025-09-11 20:20', '2025-09-15 09:00', 'DTC-318'),
+('L06-L02', 'L06', 'COMP2714', '202530', 2, '2025-09-18 18:30', '2025-09-18 20:20', '2025-09-22 09:00', 'DTC-318'),
+('L06-L03', 'L06', 'COMP2714', '202530', 3, '2025-09-25 18:30', '2025-09-25 20:20', '2025-09-29 09:00', 'DTC-318');
+
+-- Insert progress
+INSERT INTO progress
+(pgr_id, pgr_student_id, pgr_event_id, pgr_lab_number, pgr_status, pgr_prepared, pgr_attendance, pgr_inlab_submitted_at, pgr_inlab_submission_link, pgr_polished_submitted_at, pgr_polished_submission_link, pgr_instructor_assessment, pgr_self_assessment, pgr_late)
+VALUES
+('A001-L01-L01','A001', 'L01-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-08 10:45', 'https://submit.bcit.ca/comp2714/inlab/A001-L01-L01.pdf', '2025-09-09 12:45', 'https://submit.bcit.ca/comp2714/polished/A001-L01-L01.pdf', '8.5', '8.2', 'FALSE'),
+('A001-L01-L02','A001', 'L01-L02',2, 'Submitted', 'TRUE', 'Present', '2025-09-15 10:35', 'https://submit.bcit.ca/comp2714/inlab/A001-L01-L02.pdf', '2025-09-17 11:35', 'https://submit.bcit.ca/comp2714/polished/A001-L01-L02.pdf', '7.0', '6.7', 'FALSE'),
+('A002-L01-L01','A002', 'L01-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-08 10:45', 'https://submit.bcit.ca/comp2714/inlab/A002-L01-L01.pdf', '2025-09-09 12:45', 'https://submit.bcit.ca/comp2714/polished/A002-L01-L01.pdf', '8.5', '8.2', 'FALSE'),
+('A002-L01-L02','A002', 'L01-L02',2, 'In Progress', 'TRUE', 'Present', '2025-09-15 10:45', 'https://submit.bcit.ca/comp2714/inlab/A002-L01-L02.pdf', NULL, NULL, NULL, NULL, 'FALSE'),
+('A003-L01-L01','A003', 'L01-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-08 10:45', 'https://submit.bcit.ca/comp2714/inlab/A003-L01-L01.pdf', '2025-09-09 12:45', 'https://submit.bcit.ca/comp2714/polished/A003-L01-L01.pdf', '8.5', '8.2', 'FALSE'),
+('A003-L01-L02','A003', 'L01-L02',2, 'Submitted', 'FALSE', 'Present', '2025-09-15 10:35', 'https://submit.bcit.ca/comp2714/inlab/A003-L01-L02.pdf', '2025-09-17 11:35', 'https://submit.bcit.ca/comp2714/polished/A003-L01-L02.pdf', '7.0', '6.7', 'FALSE'),
+('B001-L02-L01','B001', 'L02-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-08 14:45', 'https://submit.bcit.ca/comp2714/inlab/B001-L02-L01.pdf', '2025-09-09 16:45', 'https://submit.bcit.ca/comp2714/polished/B001-L02-L01.pdf', '8.5', '8.2', 'FALSE'),
+('B001-L02-L02','B001', 'L02-L02',2, 'Submitted', 'TRUE', 'Present', '2025-09-15 14:35', 'https://submit.bcit.ca/comp2714/inlab/B001-L02-L02.pdf', '2025-09-17 15:35', 'https://submit.bcit.ca/comp2714/polished/B001-L02-L02.pdf', '7.0', '6.7', 'FALSE'),
+('B002-L02-L01','A002', 'L02-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-08 14:45', 'https://submit.bcit.ca/comp2714/inlab/B002-L02-L01.pdf', '2025-09-09 16:45', 'https://submit.bcit.ca/comp2714/polished/B002-L02-L01.pdf', '8.5', '8.2', 'FALSE'),
+('B002-L02-L02','A002', 'L02-L02',2, 'In Progress', 'TRUE', 'Present', '2025-09-15 14:40', 'https://submit.bcit.ca/comp2714/inlab/B002-L02-L02.pdf', NULL, NULL, NULL, NULL, 'FALSE'),
+('B003-L02-L01','B003', 'L02-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-08 14:45', 'https://submit.bcit.ca/comp2714/inlab/B003-L02-L01.pdf', '2025-09-09 16:45', 'https://submit.bcit.ca/comp2714/polished/B003-L02-L01.pdf', '8.5', '8.2', 'FALSE'),
+('B003-L02-L02','B003', 'L02-L02',2, 'Submitted', 'TRUE', 'Present', '2025-09-15 14:35', 'https://submit.bcit.ca/comp2714/inlab/B003-L02-L02.pdf', '2025-09-17 15:35', 'https://submit.bcit.ca/comp2714/polished/B003-L02-L02.pdf', '7.0', '6.7', 'FALSE'),
+('C001-L01-L01','C001', 'L03-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-09 19:45', 'https://submit.bcit.ca/comp2714/inlab/C001-L03-L01.pdf', '2025-09-10 21:45', 'https://submit.bcit.ca/comp2714/polished/C001-L03-L01.pdf', '8.5', '8.2', 'FALSE'),
+('C001-L01-L02','C001', 'L03-L02',2, 'Submitted', 'TRUE', 'Present', '2025-09-16 19:35', 'https://submit.bcit.ca/comp2714/inlab/C001-L03-L02.pdf', '2025-09-18 20:35', 'https://submit.bcit.ca/comp2714/polished/C001-L03-L02.pdf', '7.0', '6.7', 'FALSE'),
+('C002-L03-L01','C002', 'L03-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-09 19:45', 'https://submit.bcit.ca/comp2714/inlab/C002-L03-L01.pdf', '2025-09-10 21:45', 'https://submit.bcit.ca/comp2714/polished/C002-L03-L01.pdf', '8.5', '8.2', 'FALSE'),
+('C002-L03-L02','C002', 'L03-L02',2, 'In Progress', 'TRUE', 'Present', '2025-09-16 19:40', 'https://submit.bcit.ca/comp2714/inlab/C002-L03-L02.pdf', NULL, NULL, NULL, NULL, 'FALSE'),
+('C003-L03-L01','C003', 'L03-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-09 19:45', 'https://submit.bcit.ca/comp2714/inlab/C003-L03-L01.pdf', '2025-09-10 21:45', 'https://submit.bcit.ca/comp2714/polished/C003-L02-L01.pdf', '8.5', '8.2', 'FALSE'),
+('C003-L03-L02','C003', 'L03-L02',2, 'Submitted', 'FALSE', 'Present', '2025-09-16 19:35', 'https://submit.bcit.ca/comp2714/inlab/C003-L03-L02.pdf', '2025-09-18 20:35', 'https://submit.bcit.ca/comp2714/polished/C003-L02-L02.pdf', '7.0', '6.7', 'FALSE'),
+('D001-L04-L01','D001', 'L04-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-10 10:45', 'https://submit.bcit.ca/comp2714/inlab/D001-L04-L01.pdf', '2025-09-11 12:45', 'https://submit.bcit.ca/comp2714/polished/D001-L04-L01.pdf', '8.5', '8.2', 'FALSE'),
+('D001-L04-L02','D001', 'L04-L02',2, 'Submitted', 'TRUE', 'Present', '2025-09-17 10:35', 'https://submit.bcit.ca/comp2714/inlab/D001-L04-L02.pdf', '2025-09-19 11:35', 'https://submit.bcit.ca/comp2714/polished/D001-L04-L02.pdf', '7.0', '6.7', 'FALSE'),
+('D002-L04-L01','D002', 'L04-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-10 10:45', 'https://submit.bcit.ca/comp2714/inlab/D002-L04-L01.pdf', '2025-09-11 12:45', 'https://submit.bcit.ca/comp2714/polished/D002-L04-L01.pdf', '8.5', '8.2', 'FALSE'),
+('D002-L04-L02','D002', 'L04-L02',2, 'In Progress', 'TRUE', 'Present', '2025-09-17 10:40', 'https://submit.bcit.ca/comp2714/inlab/D002-L04-L02.pdf', NULL, NULL, NULL, NULL, 'FALSE'),
+('D003-L04-L01','D003', 'L04-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-10 10:45', 'https://submit.bcit.ca/comp2714/inlab/D003-L04-L01.pdf', '2025-09-11 12:45', 'https://submit.bcit.ca/comp2714/polished/D003-L04-L01.pdf', '8.5', '8.2', 'FALSE'),
+('D003-L04-L02','D003', 'L04-L02',2, 'Submitted', 'FALSE', 'Present', '2025-09-17 10:35', 'https://submit.bcit.ca/comp2714/inlab/D003-L04-L02.pdf', '2025-09-19 11:35', 'https://submit.bcit.ca/comp2714/polished/D003-L04-L02.pdf', '7.0', '6.7', 'FALSE'),
+('E001-L05-L01','E001', 'L05-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-10 14:45', 'https://submit.bcit.ca/comp2714/inlab/E001-L05-L01.pdf', '2025-09-11 16:45', 'https://submit.bcit.ca/comp2714/polished/E001-L05-L01.pdf', '8.5', '8.2', 'FALSE'),
+('E001-L05-L02','E001', 'L05-L02',2, 'Submitted', 'TRUE', 'Present', '2025-09-17 14:35', 'https://submit.bcit.ca/comp2714/inlab/E001-L05-L02.pdf', '2025-09-19 15:35', 'https://submit.bcit.ca/comp2714/polished/E001-L05-L02.pdf', '7.0', '6.7', 'FALSE'),
+('E002-L05-L01','E002', 'L05-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-10 14:45', 'https://submit.bcit.ca/comp2714/inlab/E002-L05-L01.pdf', '2025-09-11 16:45', 'https://submit.bcit.ca/comp2714/polished/E002-L05-L01.pdf', '8.5', '8.2', 'FALSE'),
+('E002-L05-L02','E002', 'L05-L02',2, 'In Progress', 'TRUE', 'Present', '2025-09-17 14:40', 'https://submit.bcit.ca/comp2714/inlab/E002-L05-L02.pdf', NULL, NULL, NULL, NULL, 'FALSE'),
+('E003-L05-L01','E003', 'L05-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-10 14:45', 'https://submit.bcit.ca/comp2714/inlab/E003-L05-L01.pdf', '2025-09-11 16:45', 'https://submit.bcit.ca/comp2714/polished/E003-L05-L01.pdf', '8.5', '8.2', 'FALSE'),
+('E003-L05-L02','E003', 'L05-L02',2, 'Submitted', 'FALSE', 'Present', '2025-09-17 14:35', 'https://submit.bcit.ca/comp2714/inlab/E003-L05-L02.pdf', '2025-09-19 15:35', 'https://submit.bcit.ca/comp2714/polished/E003-L05-L02.pdf', '7.0', '6.7', 'FALSE'),
+('F001-L06-L01','F001', 'L06-L01',2, 'Submitted', 'TRUE', 'Present', '2025-09-11 19:45', 'https://submit.bcit.ca/comp2714/inlab/F001-L06-L02.pdf', '2025-09-12 21:45', 'https://submit.bcit.ca/comp2714/polished/F001-L06-L02.pdf', '7.0', '6.7', 'FALSE'),
+('F001-L06-L02','F001', 'L06-L02',2, 'Submitted', 'TRUE', 'Present', '2025-09-18 19:35', 'https://submit.bcit.ca/comp2714/inlab/F001-L06-L02.pdf', '2025-09-20 20:35', 'https://submit.bcit.ca/comp2714/polished/F001-L06-L02.pdf', '7.0', '6.7', 'FALSE'),
+('F002-L06-L01','F002', 'L06-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-11 19:45', 'https://submit.bcit.ca/comp2714/inlab/F002-L06-L01.pdf', '2025-09-12 21:45', 'https://submit.bcit.ca/comp2714/polished/F002-L06-L01.pdf', '8.5', '8.2', 'FALSE'),
+('F002-L06-L02','F002', 'L06-L02',2, 'In Progress', 'TRUE', 'Present', '2025-09-18 19:40', 'https://submit.bcit.ca/comp2714/inlab/F002-L06-L02.pdf', NULL, NULL, NULL, NULL, 'FALSE'),
+('F003-L06-L01','F003', 'L06-L01',1, 'Submitted', 'TRUE', 'Present', '2025-09-11 19:45', 'https://submit.bcit.ca/comp2714/inlab/F003-L06-L01.pdf', '2025-09-12 21:45', 'https://submit.bcit.ca/comp2714/polished/F003-L06-L01.pdf', '8.5', '8.2', 'FALSE'),
+('F003-L06-L02','F003', 'L06-L02',2, 'Submitted', 'FALSE', 'Present', '2025-09-18 19:35', 'https://submit.bcit.ca/comp2714/inlab/F003-L06-L02.pdf', '2025-09-20 20:35', 'https://submit.bcit.ca/comp2714/polished/F003-L06-L02.pdf', '7.0', '6.7', 'FALSE');
+
+-- Insert progress change logs
+INSERT INTO progress_change_log
+(chl_change_id, chl_progress_id, chl_changed_by, chl_changed_at, chl_field, chl_old_value, chl_new_value, chl_reason)
+VALUES
+('chg1', 'A001-L01-L01', 'u_instructor', '2025-09-09 12:10', 'instructor_assessment', '8.0', '8.5', 'Regraded after resubmission'),
+('chg2', 'A003-L01-L02', 'u_ta1', '2025-09-16 20:45', 'status', 'In Progress', 'Submitted', 'Student submitted during lab; TA marked as submitted'),
+('chg3', 'B003-L02-L01', 'u_system', '2025-09-23 23:59', 'late', 'False', 'True', 'Auto-flagged after set-specific due time');
@@ -0,0 +1,42 @@
+
+-- Show all students with their section info Should work
+SELECT s.student_first_name, s.student_last_name, ls.lab_course_code, c.course_title, t.term_name
+FROM student s
+JOIN student_section ss ON s.student_id = ss.ss_student_id
+JOIN lab_section ls ON ss.ss_section_id = ls.lab_section_id
+JOIN course c ON ls.lab_course_code = c.course_code
+JOIN term t ON ls.lab_term_code = t.term_code;
+
+-- Count students per lab section Should work
+SELECT ls.lab_course_code, COUNT(ss.ss_student_id) AS total_students
+FROM lab_section ls
+LEFT JOIN student_section ss ON ls.lab_section_id = ss.ss_section_id
+GROUP BY ls.lab_course_code;
+
+-- View audit log Should work as intended
+SELECT pcl.chl_change_id, ua.user_full_name AS actor, pcl.chl_reason, pcl.chl_changed_at
+FROM progress_change_log pcl
+JOIN user_account ua ON pcl.chl_changed_by = ua.user_id;
+
+-- returns students names and sets
+SELECT student_first_name, student_last_name, student_set_code
+FROM student ORDER BY student_set_code ASC;
+
+-- This should fail and not work
+INSERT INTO course (course_code, course_title, credits)
+VALUES ('COMP9999', 'Invalid Credits', 0);
+
+-- Delete a lab section -> should also delete lab_event
+-- and progress automatically cause of cascade
+DELETE FROM lab_section WHERE lab_section_id = 'L01';
+
+-- Check remaining events and progress
+-- all should be empty due to cascade
+SELECT * FROM lab_event WHERE lab_event.le_section_id = 'L01';
+
+SELECT * FROM progress JOIN lab_event ON progress.pgr_event_id = lab_event.le_id
+WHERE lab_event.le_section_id = 'L01';
+
+SELECT * FROM progress_change_log JOIN progress ON progress_change_log.chl_progress_id = progress.pgr_id
+JOIN lab_event ON progress.pgr_event_id = lab_event.le_id
+WHERE lab_event.le_section_id = 'L01';