code: def initialize_from_sql_cursor(self, sqlcursor):
          
          # initialize the result
          tuples = 0
  
          # add the SQL result to the time series
          data = sqlcursor.fetchmany()
          while 0 < len(data):
              for entry in data:
                  self.add_entry(str(entry[0]), entry[1])
  
              data = sqlcursor.fetchmany()
  
          # set the normalization level
          self._normalized = self._check_normalization
  
          # return the number of tuples added to the timeseries.
          return tuples
docs: Initializes the TimeSeries's data from the given SQL cursor.
  
          You need to set the time stamp format using :py:meth:`TimeSeries.set_timeformat`.
  
          :param SQLCursor sqlcursor:    Cursor that was holds the SQL result for any given
              "SELECT timestamp, value, ... FROM ..." SQL query.
              Only the first two attributes of the SQL result will be used.
  
          :return:    Returns the number of entries added to the TimeSeries.
          :rtype:     integer