def METHOD_NAME(self) -> None:
    """
    Run all the table creation SQL queries to ensure the expected tables exist
    """
    with self.table_access_condition:
        conn = self._get_connection()
        conn.execute("PRAGMA foreign_keys = 1")
        c = conn.cursor()
        c.execute(CREATE_REQUESTERS_TABLE)
        c.execute(CREATE_UNITS_TABLE)
        c.execute(CREATE_WORKERS_TABLE)
        conn.commit()