public static Blob getBlob(final ResultSet resultSet, final String columnName) throws SQLException {
        return getNullableFrom(resultSet, rs -> rs.getBlob(columnName));
    }
Utility methods for retrieving nullable and special values from
{@code ResultSet}.

@author Emil Forslund
runtime-parent/runtime-core/src/main/java/com/speedment/runtime/core/util/ResultSetUtil.java