text: -- create database  base_tracker
  CREATE DATABASE base_tracker;
  
  -- create table item
  CREATE TABLE item (
    id SERIAL PRIMARY KEY,
    name VARCHAR(200) NOT NULL,
    description VARCHAR(2000) NOT NULL,
    create_date DATE NOT NULL
  );
  
  -- create table comments
  CREATE TABLE comments (
    id SERIAL PRIMARY KEY,
    name VARCHAR(2000) NOT NULL,
    description VARCHAR(2000) NOT NULL,
    create_date DATE NOT NULL,
    item_id INT REFERENCES item(id) ON DELETE CASCADE
  );