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Phase 6 · Databases (SQL & NoSQL)

Topics

Migrations

Part of the Full Stack Developer Roadmap.

Summary

Version-controlled, incremental scripts that evolve your database schema over time — letting a team change table/collection structures safely and reproducibly.

How to Learn This

  • 1Write a migration that adds a field to an existing model without losing data.
  • 2Learn how your ORM's migration tooling tracks which migrations have already run.
  • 3Practice applying a migration to a fresh database as part of your project setup.

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Schema Design

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Indexes & Query Performance

More topics in Databases (SQL & NoSQL)

Relational Database ConceptsPostgreSQL/MySQLMongoDBORMs (Prisma/Mongoose)Schema DesignIndexes & Query PerformanceChoosing SQL vs NoSQL
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