how to list ALL table sizes in a project

Question

Is there a way to list all the table size in BigQuery?

I know a command like this:

select 
  table_id,
  sum(size_bytes)/pow(10,9) as size
from
  certain         


        

Answer 1

At the moment there's no possible way to do that in a single query, but you can do it with a script, here is my python script that prints out the list:

from google.cloud import bigquery

client = bigquery.Client()

datasets = list(client.list_datasets())
project = client.project

if datasets:
    print('Datasets in project {}:'.format(project))
    for dataset in datasets:  # API request(s)
        print('Dataset: {}'.format(dataset.dataset_id))

        query_job = client.query("select table_id, sum(size_bytes)/pow(10,9) as size from `"+dataset.dataset_id+"`.__TABLES__ group by 1")

        results = query_job.result()
        for row in results:
            print("\tTable: {} : {}".format(row.table_id, row.size))

else:
    print('{} project does not contain any datasets.'.format(project))