/SQL/Database schema for mcqs type exam in sql

Database schema for mcqs type exam in sql

CREATE  TABLE users (
  id int(10) auto_increment primary key,
  username VARCHAR(45) NOT NULL ,
  password VARCHAR(45) NOT NULL ,
  enabled TINYINT NOT NULL DEFAULT 1
);

CREATE TABLE questions (
    id int(10) auto_increment primary key,
    question varchar(800) NOT NULL,
    right_option int(10) NOT NULL references options(id)
);

CREATE TABLE options (
    id int(10) auto_increment primary key,
    question_id int(10) NOT NULL references questions(id),
    `option` varchar(150) NOT NULL
);

CREATE TABLE exam_details (
    id int(10) auto_increment primary key,
    username varchar(45) NOT NULL references users(username),
    date_of_exam date not null,
    exam_result varchar(10) NOT NULL, -- PASS/FAIL
    exam_score int(10) NOT NULL,      -- e.g. 40 
    no_of_questions int(10) NOT NULL  -- total no. of questions in the test
);     

CREATE TABLE user_answers (
    id int(10) auto_increment primary key,
    userId int(10) NOT NULL references users(id),
    question_id int(10) NOT NULL references questions(id),
    answer int(10) NOT NULL references options(id)
);

Source: stackoverflow.com

Similar codes

0 vote145 views2 answers
Select columns from 2 tables with foreign key
SQL
2 votes165 views3 answers
Current setting postgres timezone
SQL
12 votes141 views4 answers
Install mysql ubuntu 18.04
SQL
0 vote169 views1 answer
Hashpass
SQL
0 vote285 views2 answers
SQL SERVER ORDER BY DATE NULL LAST
SQL
0 vote147 views1 answer
Sql server alter table add column datetime default current_timestamp
SQL
0 vote169 views1 answer
Update database collation in postgresql
SQL
9 votes155 views5 answers
Sql delete duplicate rows but keep one
SQL
0 vote138 views2 answers
Raise notice in postgresql function
SQL
0 vote169 views1 answer
Space not removing from column in sql
SQL