# Apache Iceberg Day 2 Lab

> In this lab, we explore the key concepts of partitioning and metadata in data management. Zach explains the importance of creating a schema, using dollar files for queries, and demonstrate how partitions work. We also discuss the value of low cardinality number columns and the idea of partition pru…

- Web page: https://www.dataexpert.io/lesson/apache-iceberg-day-2-lab-may2025
- Access: Requires enrollment
- Length: 37 min video
- Skills: SQL, Data Modeling, ETL/ELT, Apache Spark, Apache Iceberg
- Academy: DataExpert.io Academy

## About this lesson

In this lab, we explore the key concepts of partitioning and metadata in data management. Zach explains the importance of creating a schema, using dollar files for queries, and demonstrate how partitions work. We also discuss the value of low cardinality number columns and the idea of partition pruning.