Solution:Step 1: Analyze filter conditionThe filter selects users where age is greater than 30.Step 2: Understand limit effectThe limit(5) restricts the result to the first 5 matching users.Final Answer:First 5 users older than 30 -> Option BQuick Check:Filter + limit = first 5 matching users [OK]

[Solved] Given the code:users = User.query.filter(User.age > 30).limit(5).all()What does this query return? — Ans: First 5 users older than 30 | Flask

Flask - Performance Optimization

Given the code:

users = User.query.filter(User.age > 30).limit(5).all()

What does this query return?

AAll users older than 30

BFirst 5 users older than 30

C5 users regardless of age

DSyntax error due to filter condition

Step-by-Step Solution

Solution:

Step 1: Analyze filter condition
The filter selects users where age is greater than 30.
Step 2: Understand limit effect
The limit(5) restricts the result to the first 5 matching users.
Final Answer:
First 5 users older than 30 -> Option B
Quick Check:
Filter + limit = first 5 matching users [OK]

Quick Trick: Filter narrows data, limit caps number returned [OK]

Common Mistakes:

MISTAKES

Ignoring the limit and thinking all filtered users return
Confusing filter syntax with bitwise operator
Assuming limit applies before filter

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Given the code:

Step 1: Analyze filter condition

Step 2: Understand limit effect

Final Answer:

Quick Check:

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