Answer: Google Cloud SQL

BigQuery supports loading data directly from various sources such as file uploads, Google Drive, and Google Cloud Storage. However, direct data loading from Google Cloud SQL into BigQuery is not supported. To move data from Cloud SQL to BigQuery, you would first need to export the data to Google Cloud Storage and then load it into BigQuery from there. For more details, refer to the official documentation: [Loading Data into BigQuery](https://cloud.google.com/bigquery/loading-data).

Author: LeetQuiz Editorial Team