Apache Cassandra - Tutorial 11 - CQL - UUIDs and Counters

In this fourth video on CQL we will look at the use of UUIDs and counters in Apache Cassandra and how these are implemented in Cassandra.

UUID's or universally unique identifiers are use to generate a unique id for a row in Cassandra. The use of UUID's in distributed systems has a number of advantages over a traditionally incrementing id.

Counters are used when we need a column in our table that can only be incremented and decremented.

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