#querysets

Django Medium Theory

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What is Django queryset laziness?

QuerySets are lazy, so they usually do not hit the database until they are evaluated.

• Filter chaining stays cheap
• Evaluation happens on iteration or list conversion
• Important for performance reasoning

#django #orm #querysets

What is Django queryset laziness?

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Django Easy Theory

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What is the difference between get and filter in Django ORM?

`get()` expects exactly one row and raises errors otherwise, while `filter()` returns a QuerySet that can contain zero or more rows.

• get returns one object
• filter returns QuerySet
• Use get only when uniqueness is expected

#django #orm #querysets

What is the difference between get and filter in Django ORM?

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