Can you explain what migrations are in Django?

Instruction: Define migrations and their importance in Django applications.

Context: This question aims to understand the candidate's knowledge of Django's migration system for database changes, which is crucial for database management and version control.

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Migrations are versioned instructions that evolve Django's model state and, where required, the database schema or data. Their dependency graph determines execution order across apps; a timestamp in a filename is not the whole ordering rule.

makemigrations compares current model definitions with the state represented by migration files and writes candidate operations. It does not inspect the live database for every difference and does not apply the migration...

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