Query below returns tables in a database with space (MB accessed by a scan of the table) they use ordered from the ones using most.

Query

select table_schema,
       table_name,
       round(bytes/1024/1024, 2) as table_size
from information_schema.tables
where table_type = 'BASE TABLE'
order by table_size desc;

Columns

• table_schema - name of table schema
• table_name - name of table
• table_size - space used by table in MB

Rows

• One row represents one table in a database
• Scope of rows: all tables in a database
• Ordered by table used size from largest to smallest

Sample results

Tables in SNOWFLAKE_SAMPLE_DATA ordered from the ones using most space to least.