How can data be transferred most effectively from Azure to Bigquery?

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There are several methods to transfer data from Azure to BigQuery:

1. Cloud Dataflow: Use Google Cloud Dataflow to extract, transform, and load (ETL) data from Azure to BigQuery. Dataflow is a managed service that provides a simple way to perform complex data transformations and is optimized for large-scale data processing.

2. Cloud Storage: Export data from Azure to Google Cloud Storage, and then import the data to BigQuery. This method is suitable for unstructured data and can be done using a tool like AzCopy.

3. Data Transfer Service: Use Google's Data Transfer Service to configure scheduled data transfers from Azure to BigQuery. This method is suitable for regularly transferring data from Azure.

4. BigQuery Data Transfer Service: Use Google's BigQuery Data Transfer Service to create scheduled data transfers from Azure SQL databases and Azure Blob Storage to BigQuery.

5. Third-Party Tools: Use third-party tools like Attunity, Informatica, or Talend to transfer data from Azure to BigQuery. These tools provide pre-built connectors and make it easy to transfer large amounts of data.