How do you fetch all rows for a model?
PICTURE THIS: DJANGO MVT
Simple meaning
Call MyModel.objects.all() to get a QuerySet of every row.
WHY — ORM instead of guessing?
Why interviewers care about ORM:
question about ORM.
trade-offs, and what you would actually do on a Python project - not buzzwords.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens step by step?
Before you speak the answer, walk the interviewer through these steps:
- 1Call MyModel.objects.all() to get
a QuerySet of every row.
- 2Prefer filter() when you
only need a subset, because all() can be expensive on large tables.
- 3get() returns one object
and raises DoesNotExist or MultipleObjectsReturned otherwise.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
Call MyModel.objects.all() to get a QuerySet of every row. Prefer filter() when you only need a subset, because all() can be expensive on large tables.