Best practices for building automated BigQuery to BigQuery ETL pipelines?

[Urban_Guy]

Hey everyone! I’m currently setting up our data warehouse architecture and need to transfer and transform large volumes of data within BigQuery. What are the best practices for handling BigQuery to BigQuery ETL workflows efficiently? Is it better to rely on scheduled SQL queries, cloud functions, or dedicated third-party ETL tools to handle batch processing and schema sync without driving up costs?

[Walker]

It really depends on your scale an