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SowinskiBraeden committed 2025-11-28 16:27:38 -08:00
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Project/schema.sql
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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
);