confluent-ksqldb
Confluent ksqlDB Skill
Expert knowledge of ksqlDB - Confluent's event streaming database for building real-time applications with SQL-like queries on Kafka topics.
What I Know
Core Concepts
Streams (Unbounded, Append-Only):
- Represents immutable event sequences
- Every row is a new event
- Cannot be updated or deleted
- Example: Click events, sensor readings, transactions
Tables (Mutable, Latest State):
- Represents current state
- Updates override previous values (by key)
- Compacted topic under the hood
- Example: User profiles, product inventory, account balances
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