Django ORM Race Condition tip
Suppose we have a 'Product' model with a 'quantity' field and we want to increment the quantity by a specific value.
The code using the 'F' expression avoids retrieving the 'quantity' value from the database into Python memory. It performs the increment operation directly at the database level, reducing unnecessary database round-trips.
Suppose we have a 'Product' model with a 'quantity' field and we want to increment the quantity by a specific value.
The code using the 'F' expression avoids retrieving the 'quantity' value from the database into Python memory. It performs the increment operation directly at the database level, reducing unnecessary database round-trips.