public boolean inServerDB(Connection con, String file_path) {
		boolean result = false;
		try {
			PreparedStatement ps = con
					.prepareStatement("SELECT * FROM db_like_files WHERE path_local = ?");
			ps.setString(1, file_path);
			ResultSet rs = ps.executeQuery();
			if (rs.next()) {
				result = true;
			} else {
				result = false;
			}
		} catch (SQLException e) {
			e.printStackTrace();
			result = false;
		}
		return result;
	}