[Solved] In Django ORM, what is the primary effect of using select_related when querying models? — Ans: It performs a SQL join to retrieve related objects in a single query. | Django

Django - Caching

In Django ORM, what is the primary effect of using select_related when querying models?

AIt caches query results for faster repeated access.

BIt filters the queryset based on related model fields.

CIt performs a SQL join to retrieve related objects in a single query.

DIt creates new related objects automatically during the query.

Step-by-Step Solution

Solution:

Step 1: Understand select_related
select_related is used to perform SQL joins and fetch related objects in one query.
Step 2: Compare options
It performs a SQL join to retrieve related objects in a single query. correctly describes this behavior. Options B, C, and D describe unrelated functionalities.
Final Answer:
It performs a SQL join to retrieve related objects in a single query. -> Option C
Quick Check:
Does select_related reduce the number of queries by joining tables? Yes. [OK]

Quick Trick: select_related joins related tables in one query [OK]

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In Django ORM, what is the primary effect of using select_related when querying models?