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What is a primary key? And what are it’s different types?

Question Posted / vandana sharma


What is a primary key? And what are it’s different types?..

Answer / Ranjna Rani

A primary key in Cassandra is a unique identifier for each row and consists of one or more columns. The different types of primary keys include: Simple Primary Key (a single column), Composite Primary Key (multiple columns), and UUID as the Primary Key (generated by the system at insert time).

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