CREATE TABLE Documents (
	ID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
	Title TEXT NOT NULL,
	Description TEXT,
	Author TEXT,
	Published TEXT,
	URL TEXT NOT NULL
);

CREATE TABLE DocumentsToTags (
	Document INTEGER NOT NULL,
	Tag INTEGER NOT NULL
);

CREATE TABLE Tags (
	ID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
	Name TEXT NOT NULL,
	Description TEXT,
	Parent INTEGER
);

CREATE TABLE Users (
	ID INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
	Username TEXT NOT NULL,
	Password TEXT NOT NULL
);