Question 31 (Intermediate - Django ORM):
When using Django ORM's
A)
B) Both methods generate exactly one SQL query
C)
D)
#Python #Django #ORM #Database
✅ By: https://t.me/DataScienceQ
When using Django ORM's
select_related() and prefetch_related() for query optimization, which statement is correct? A)
select_related uses JOINs (1 SQL query) while prefetch_related uses 2+ queries B) Both methods generate exactly one SQL query
C)
prefetch_related works only with ForeignKey relationships D)
select_related is better for many-to-many relationships #Python #Django #ORM #Database
✅ By: https://t.me/DataScienceQ
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