Nested and repeated columns (ARRAYs and STRUCTs), Google Cloud, 2024 (Google Cloud) - Official guide on using arrays and structs in BigQuery, including querying and best practices for performance optimization.
Semi-structured Data: Introduction, Snowflake Inc., 2018 (Snowflake Inc.) - Official documentation covering semi-structured data types like ARRAY and OBJECT, and the LATERAL FLATTEN function in Snowflake.
Database System Concepts, Abraham Silberschatz, Henry F. Korth, S. Sudarshan, 2019 (McGraw-Hill Education) - A widely respected textbook providing a comprehensive academic foundation on database normalization, including First Normal Form (1NF), essential for understanding the traditional context.
Apache Parquet, Apache Software Foundation, 2024 - The official documentation for Apache Parquet, a widely used columnar storage format that supports complex nested data structures and is foundational to many modern data warehouses.