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Evolution

Evolution

Evolution

Evolution

Evolution

evolution of data models - Bing video

overview of data models

Schemaless doesn't mean you don't need to think carefully about your data models!

When Facebook decided to use Hbase instead of Cassandra for its messaging system, it took a little sheen off the database. But even as the NoSQL hype faded, Cassandra kept chugging along, picking up new users along the way. Apple is now the second largest contributor to the project, though it's quiet about how it uses the database. Cassandra is the second most popular NoSQL database in the world, after MongoDB, and the third fastest growing database overall.

When Facebook decided to use Hbase instead of Cassandra for its messaging system, it took a little sheen off the database. But even as the NoSQL hype faded, Cassandra kept chugging along, picking up new users along the way. Apple is now the second largest contributor to the project, though it's quiet about how it uses the database. Cassandra is the second most popular NoSQL database in the world, after MongoDB, and the third fastest growing database overall.