text: -- create_db.sql
  CREATE TABLE items (
  	id INTEGER PRIMARY KEY ASC AUTOINCREMENT,
  	name TEXT NOT NULL,
  	group_name TEXT
  );
  
  CREATE TABLE draw_histories (
      draw_histories_id INTEGER PRIMARY KEY ASC AUTOINCREMENT,
  	itemid INTEGER,
  	time DATETIME DEFAULT (datetime('now', 'localtime')),
  	FOREIGN KEY (itemid) REFERENCES items(id)
  );