make a database sql code example

Example 1: create database sql

CREATE TABLE example (
    id INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
    username VARCHAR(50) NOT NULL UNIQUE,
    password VARCHAR(255) NOT NULL,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP

);

Example 2: how to create a sql database

CREATE table songs (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  title TEXT,
  artist TEXT,
  mood TEXT,
  duration INTEGER,
  released INTEGER);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("Bohemian Rhapsody", "Queen", "epic", 60, 1975);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("Let it go", "Idina Menzel", "epic", 227, 2013);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("I will survive", "Gloria Gaynor", "epic", 198, 1978);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("Twist and Shout", "The Beatles", "happy", 152, 1963);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("La Bamba", "Ritchie Valens", "happy", 166, 1958);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("I will always love you", "Whitney Houston", "epic", 273, 1992);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("Sweet Caroline", "Neil Diamond", "happy", 201, 1969);
INSERT INTO songs (title, artist, mood, duration, released)
    VALUES ("Call me maybe", "Carly Rae Jepsen", "happy", 193, 2011);
   SELECT * FROM songs;