class Avg(expression, output_field=FloatField(), **extra) [source] Returns the mean value

create(**kwargs) A convenience method for creating an object and saving it all in one step. Thus:

prefetch_related(*lookups) Returns a QuerySet that will automatically retrieve, in a single batch, related objects

values(*fields) Returns a QuerySet that returns dictionaries, rather than model instances, when used as an iterable

class Max(expression, output_field=None, **extra) [source] Returns the maximum value of the

prefetch_related_objects(model_instances, *related_lookups) [source]

sample By default, Variance returns the population variance. However, if sample=True, the return value

exclude(**kwargs) Returns a new QuerySet containing objects that do not match the given lookup parameters

using(alias) This method is for controlling which database the QuerySet will be evaluated against if you are using

count() Returns an integer representing the number of objects in the database matching the QuerySet. The count()