Learning Akka (Video 18)

This video tutorial explores the CQRS pattern, highlighting its separation of read and write operations compared to the CRUD system. It delves into persistence queries, explaining their role in reading persistent events from a Journal and migrating data between write and query sides. The tutorial covers predefined query types and demonstrates implementing a view for a persistent actor using persistence queries. The session concludes with a summary and a look ahead to Akka cluster.

What are the key features of the backup assistance query?

Describe the purpose of the 'Events by persistence ID' query.