code: private void verifyTiles(ContentsDataType dataType) throws SQLException {
  		// Tiles require Tile Matrix Set table (Spec Requirement 37)
  		TileMatrixSetDao tileMatrixSetDao = getTileMatrixSetDao();
  		if (!tileMatrixSetDao.isTableExists()) {
  			throw new GeoPackageException("A data type of "
  					+ dataType.getName() + " requires the "
  					+ TileMatrixSet.class.getSimpleName()
  					+ " table to first be created using the GeoPackage.");
  		}
  
  		// Tiles require Tile Matrix table (Spec Requirement 41)
  		TileMatrixDao tileMatrixDao = getTileMatrixDao();
  		if (!tileMatrixDao.isTableExists()) {
  			throw new GeoPackageException("A data type of "
  					+ dataType.getName() + " requires the "
  					+ TileMatrix.class.getSimpleName()
  					+ " table to first be created using the GeoPackage.");
  		}
  	}
docs: Verify the required tile tables exist
  
  @param dataType
  data type
  @throws SQLException
  upon tiles verification error