Getting the SQL from a Django QuerySet [duplicate]

This question already has answers here: 开发者_高级运维 How to see the raw SQL queries Django is running? (24 answers) Closed 8 years ago.

How do I get the SQL that Django will use on the database from a QuerySet object? I'm trying to debug some strange behavior, but I'm not sure what queries are going to the database.

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You print the queryset's query attribute.

>>> queryset = MyModel.objects.all()
>>> print(queryset.query)
SELECT "myapp_mymodel"."id", ... FROM "myapp_mymodel"

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Easy:

print(my_queryset.query)

For example:

from django.contrib.auth.models import User
print(User.objects.filter(last_name__icontains = 'ax').query)

It should also be mentioned that if you have DEBUG = True, then all of your queries are logged, and you can get them by accessing connection.queries:

from django.db import connections
connections['default'].queries

The django debug toolbar project uses this to present the queries on a page in a neat manner.

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The accepted answer did not work for me when using Django 1.4.4. Instead of the raw query, a reference to the Query object was returned: <django.db.models.sql.query.Query object at 0x10a4acd90>.

The following returned the query:

>>> queryset = MyModel.objects.all()
>>> queryset.query.__str__()

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This middleware will output every SQL query to your console, with color highlighting and execution time, it's been invaluable for me in optimizing some tricky requests

http://djangosnippets.org/snippets/290/

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As an alternative to the other answers, django-devserver outputs SQL to the console.