def get_column_values(conn, table_name, column_name):
    cmd = 'SELECT {0} FROM {1}'.format(column_name, table_name)
    return execute(conn, cmd)
def get_column_values(conn, table_name, column_name):
    cmd = 'SELECT {0} FROM {1}'.format(column_name, table_name)
    return execute(conn, cmd)