# Filtering & Joins

- [Filtering data](/latest/user-guide/using/tutorials/sql-processors/filtering-and-joins/filtering-data.md): This page describes a tutorial to filter records in a Kafka topic with Lenses SQL Processors.
- [Enriching data streams](/latest/user-guide/using/tutorials/sql-processors/filtering-and-joins/enriching-data-streams.md): This page describes a tutorial to enrich a Kafka topic using Lenses SQL Processors.
- [Joining streams of data](/latest/user-guide/using/tutorials/sql-processors/filtering-and-joins/joining-streams-of-data.md): This page describes a tutorial joining Kafka topics with Lenses SQL Processors.
- [Using multiple topics](/latest/user-guide/using/tutorials/sql-processors/filtering-and-joins/using-multiple-topics.md): This page describes a tutorial to use multiple Kafka topics in a Lenses SQL Processor.