code: public boolean execInsert(D6Model[] modelObjects, D6Inex includeExcludeColumnNames) {
      boolean ignoreDuplicate = false;
      return execInsert(modelObjects, includeExcludeColumnNames, ignoreDuplicate);
    }
docs: Insert the specified model object into the DB
  
  @param modelObjects
  @param includeExcludeColumnNames
  You can select either 'the column name you want to reflected
  in the database' AND 'the column name you don't want to
  reflect in the database'. When omitted (null specified)
  ,reflects all properties in the model class has to be
  reflected to the database.
  
  @return true:DB operation success false:failure