Snowflake supports creating temporary tables for storing non-permanent, transitory data (e.g. ETL data, session-specific data). Temporary tables only exist within the session in which they were created and persist only for the remainder of the session.
https://docs.snowflake.com/en/user-guide/tables-temp-transient.html#:~:text=Snowflake%20supports%20creating%20temporary%20tables,the%20remainder%20of%20the%20session.

A reader account can only consume data from the provider account that created it.

Explanation/Reference: https://docs.snowflake.com/en/sql-reference/sql/put.html

Explanation/Reference: https://docs.snowflake.com/en/user-guide/warehouses-overview.html