BigQuery
https://www.slideshare.net/zzsza/bigquery-147073606
https://zzsza.github.io/bigquery/
https://burning-dba.tistory.com/137
https://www.youtube.com/watch?v=MILy4dzSGk4&list=PL9mhQYIlKEhc42aoo-zvaSVOFCqGBD4ev
https://count.co/sql-resources/sql/from