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Advanced Python with Django Framework

Advanced Python with Django Framework

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There is a database table:

which code will return one request with the corresponding employee id, transmitted in the variable eid ?

employee = session.select(Employee).where(Employee.id == eid).one()

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employee = session.select(Employee).filter(Employee.id == eid).one()

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employee = session.query(Employee).filter(Employee.id == eid).(one)

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employee = session.query(Employee).filter(Employee.id == eid).one()

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How to make sure that a field can't contain nulls in the column?

set the nullable=False

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set the unique=False

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set the unique=True

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set the nullable=True

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Relations in SQLAlchemy have a flexible setting, allowing you to get data from the database in different ways at different times using a named argument lazy.

The main degrees of "laziness":

select

joined

lazy

subquery

dynamic

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What are the definitions of models in SQLAlchemy ? (Select two)

declarative

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documentary

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