How can I find google bigquery dataset size, not table sizes

Question

I can see the details of the table metadata in BigQuery, but to evaluate the project, I hope to see the metadata of the entire dataset.

SELECT * From 'dataset'._TABLES_SUMMARY_WHERE size_bytes>0 isn't working for me. 

Answer 1

 SELECT SUM(size_bytes) AS bytes FROM [yourdataset.__TABLES__]