self.query_headers = "([ac_serial_reg_key],[activity_date],
    [aircraft_delivery_date],[activity_name],[activity_remark],
    [aircraft_category],[aircraft_financial_status],[aircraft_group],
    [aircraft_model],[aircraft_operational_status],[aircraft_registration_number], [aircraft_serial_number],
    [aircraft_type],[engine_model],[engine_type],[operator_name]
)"

self.query_values = ''

for idx, set in enumerate(self.response.json()['results'], start=1):
    self.query_values += "("
    self.query_values += "'"+str(set['aircraft_registration_number'])+"_"+str(set['aircraft_serial_number'])+"',"
    self.query_values += self.validate_date(set['activity_date'])+","
    self.query_values += self.validate_date(set['aircraft_delivery_date'])+","
    self.query_values += "'"+str(set['activity_name'])+"',"
    self.query_values += "'"+str(set['activity_remark'])+"',"
    self.query_values += "'"+str(set['aircraft_category'])+"',"
    self.query_values += "'"+str(set['aircraft_financial_status'])+"',"
    self.query_values += "'"+str(set['aircraft_group'])+"',"
    self.query_values += "'"+str(set['aircraft_model'])+"',"
    self.query_values += "'"+str(set['aircraft_operational_status'])+"',"
    self.query_values += "'"+str(set['aircraft_registration_number'])+"',"
    self.query_values += "'"+str(set['aircraft_serial_number'])+"',"
    self.query_values += "'"+str(set['aircraft_type_lar'])+"',"
    self.query_values += "'"+str(set['engine_model'])+"',"
    self.query_values += "'"+str(set['engine_type'])+"',"
    self.query_values += "'"+str(set['operator_name'])+"'"
    self.query_values += ")"

if idx < self.response.json()['results_this_page']:
    self.query_values += ","