What does Cassandra’s data model look like?

Cassandra is a distributed database system with a data model based on key-value pair column families. In Cassandra, data is stored in rows, each containing a primary key and a set of column families.

Each row’s primary key must be unique and can contain multiple column families. Each column family can contain multiple columns, and the structure of column families and columns is dynamic, allowing different column families and columns for each row.

Cassandra’s data model is column-oriented, allowing for storing different data structures in the same row without the need to define the table’s structure beforehand. This flexibility makes Cassandra ideal for storing large amounts of unstructured data, such as log data or social network data.

Overall, Cassandra’s data model is flexible, highly scalable, and capable of supporting large-scale distributed storage and processing.