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  Django: select_related, prefetch_related, only & defer 면접 때 나왔었던 질문: Have you ever used "the prefetch_related or select_related" function in order to optimize DB access ?? https://docs.djangoproject.com/en/4.2/ref/models/querysets/#django.db.models.query.QuerySet.select_related Django The web framework for perfectionists with deadlines. docs.djangoproject.com select_related() foreignKey 나 OneToOneField 와 같은 단일 관계 필드에서 사용된다. JOIN 연산을 이용하여 연관된 객체를 미리 .. Dev./Django & DRF 2023. 11. 10.