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Which of the following is the correct way to set the maximum pool size using SQLAlchemy in FastAPI?

easy📝 Syntax Q12 of 15
FastAPI - Database Integration
Which of the following is the correct way to set the maximum pool size using SQLAlchemy in FastAPI?
Aengine = create_engine(DB_URL, pool_size=10)
Bengine = create_engine(DB_URL, max_connections=10)
Cengine = create_engine(DB_URL, max_pool=10)
Dengine = create_engine(DB_URL, connection_limit=10)
Step-by-Step Solution
Solution:

  1. Step 1: Recall SQLAlchemy pool size parameter

    The correct parameter to set max pool size is pool_size.

  2. Step 2: Match parameter with options

    Only engine = create_engine(DB_URL, pool_size=10) uses pool_size=10, which is valid syntax.

  3. Final Answer:

    engine = create_engine(DB_URL, pool_size=10) -> Option A

  4. Quick Check:

    pool_size sets max connections in SQLAlchemy [OK]
Quick Trick: Use pool_size to set max connections in create_engine [OK]
Common Mistakes:
MISTAKES
  • Using incorrect parameter names like max_connections
  • Confusing pool_size with connection_limit
  • Trying to set max_pool which is invalid

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