does cassandra have joins?

No, Apache Cassandra does not natively support joins in the way relational databases do. Instead, you'll need to either perform the join logic in your application or denormalize your data by creating multiple tables that represent the join results.

Alternatives to the native join is by using denormalization and Client-Side Joins.

Denormalization is a common approach in Cassandra is to denormalize your data, meaning you replicate data across multiple tables to avoid the need for joins. This allows for faster reads by pre-joining the data.

Using client side joins, you can perform the join logic in your application by querying the required data from different tables and then combining it in your code. This approach can be less efficient for complex queries and large datasets.

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