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Given these commands run in order:

medium📝 component behavior Q13 of 15
Flask - Deployment
Given these commands run in order:
flask db init
flask db migrate -m "Add user table"
flask db upgrade
What happens after the last command?
AThe database schema updates with the new user table
BThe migration folder is deleted
CThe app restarts automatically
DThe migration message is ignored
Step-by-Step Solution
Solution:

  1. Step 1: Understand each command effect

    init sets up migration scripts, migrate creates migration files, upgrade applies changes to the database.

  2. Step 2: Identify final effect

    After upgrade, the database schema updates to include new tables or changes.

  3. Final Answer:

    The database schema updates with the new user table -> Option A

  4. Quick Check:

    Upgrade = apply schema changes [OK]
Quick Trick: Upgrade applies migration changes to database [OK]
Common Mistakes:
MISTAKES
  • Thinking upgrade deletes migration files
  • Assuming app restarts automatically
  • Ignoring migration message

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