parameters: (self, operation, seq_of_parameters)
docstring: Prepare a database operation (query or command)
          and then execute it against all parameter sequences or mappings found in the sequence seq_of_parameters.
  
              Return values are not defined.
docstring_summary: Prepare a database operation (query or command)
          and then execute it against all parameter sequences or mappings found in the sequence seq_of_parameters.
docstring_tokens: Prepare a database operation ( query or command ) and then execute it against all parameter sequences or mappings found in the sequence seq_of_parameters .
function: def executemany(self, operation, seq_of_parameters):
          """Prepare a database operation (query or command)
          and then execute it against all parameter sequences or mappings found in the sequence seq_of_parameters.
  
              Return values are not defined. 
          """
          self.messages = list()                
          total_recordcount = 0
  
          for params in seq_of_parameters:
              self.execute(operation, params)
  
              if self.rowcount == -1:
                  total_recordcount = -1
  
              if total_recordcount != -1:
                  total_recordcount += self.rowcount
  
          self.rowcount = total_recordcount
function_tokens: def executemany ( self , operation , seq_of_parameters ) : self . messages = list ( ) total_recordcount = 0 for params in seq_of_parameters : self . execute ( operation , params ) if self . rowcount == - 1 : total_recordcount = - 1 if total_recordcount != - 1 : total_recordcount += self . rowcount self . rowcount = total_recordcount