Sling is a data transfer tool for copying data in and out of databases in large volumes
BigQuery
Initially had some issues when using Sling with Google BigQuery.
Transforms
If using encode_utf8 transform then sling will add double quotes around the content.
Azure Blob Storage
Copy the SAS URL from the authentication panel in azure portal and remove the container name. For example:
https://storageaccountname.blob.core.windows.net/containername?sp=....
becomes
https://storageaccountname.blob.core.windows.net/?sp=....