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What is the role of the Base class in SQLAlchemy when used with FastAPI?

easy🧠 Conceptual Q1 of 15
FastAPI - Database Integration
What is the role of the Base class in SQLAlchemy when used with FastAPI?
AIt manages database connections automatically.
BIt acts as the base class for all ORM models to inherit from.
CIt defines the API routes for FastAPI.
DIt handles HTTP requests and responses.
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of Base in SQLAlchemy

    The Base class is created by calling declarative_base() and serves as the base for all ORM models. Models inherit from it to define tables.

  2. Step 2: Differentiate Base from other components

    Base does not manage connections or API routes; those are handled by the engine/session and FastAPI respectively.

  3. Final Answer:

    It acts as the base class for all ORM models to inherit from. -> Option B

  4. Quick Check:

    Base = ORM model base class [OK]
Quick Trick: Base is the parent class for all database models [OK]
Common Mistakes:
MISTAKES
  • Confusing Base with database connection manager
  • Thinking Base handles API routes
  • Assuming Base manages HTTP requests

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