I have a query for a dataset in Report builder which contains two temp tables.
When running the query within the query designer window, it works, but when closing out the window so it can update the dataset field it fails with 'Could not update a list of fields for the query. Verify that you can connect to the data source and that your query syntax is correct' and when the error details are expanded - 'Timeout Expired. The timeout period elapsed prior to completion of the operation or the server is not responding. The statement has been terminated'.
Are queries within Report Builder datasets able to use multiple temp tables?