SQL vs NoSQL & Data Modeling for Scale

Choose the right storage model from access patterns, and design schemas that survive growth

Compare relational databases with key-value, document, wide-column, graph, search and time-series stores, learn access-pattern-driven modelling for DynamoDB and Cassandra, and use a decision matrix to justify database choices in interviews.

Practice questions (5)

• Choosing a Store for a Notifications Service

  Intermediate · Free
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• Single-Table Design for a Blog Platform

  Advanced
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• Normalising an Order System That Keeps Breaking Reports

  Intermediate
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• A Leaderboard That Melts One Partition

  Advanced
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• Justifying (or Rejecting) a New Store

  Intermediate
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Quizzes (1)