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

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

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

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

class Q [source] A Q() object, like an

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

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

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

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