CREATE TABLE IF NOT EXISTS habits
(
    id          INTEGER PRIMARY KEY AUTOINCREMENT,
    user_id     INTEGER NOT NULL,
    name        TEXT NOT NULL,
    note        TEXT,
    times       INTEGER NOT NULL,
    unit        INTEGER,
    list_index  INTEGER NOT NULL,
    created_at  TEXT NOT NULL,
    updated_at  TEXT NOT NULL,
    FOREIGN KEY (user_id) REFERENCES users(id)
);