BigQuery is Google Cloud's serverless data warehouse. There are no clusters or warehouses to size: queries run against a shared execution layer, with on-demand (bytes scanned) or capacity-based (slot reservation) pricing models.
The platform supports streaming ingestion for near-real-time availability, standard SQL with extensions, federated queries over external sources, and in-warehouse machine learning via BQML. Storage and compute scale independently and are billed separately.
BigQuery fits organizations already on Google Cloud or those wanting a zero-operations analytical store. It is commonly compared with Snowflake, Redshift, and lakehouse query engines during platform selection.