What are the three types of space in Teradata?

In Teradata, the three types of space utilized for data storage are Permanent, Temporary, and Spool. Permanent space refers to the storage allocated for database tables that retain data permanently until explicitly deleted. Temporary space is used for session-specific data that does not need to persist beyond the session's duration, often utilized for temporary tables or intermediate calculations. Spool space is specifically designated for holding intermediate query results and is dynamically allocated during query processing.

The distinction among these types of space is crucial for database administrators and users to manage storage resources effectively. Permanent space is essential for the overall data architecture, Temporary space is vital for session-level operations, and Spool space is critical for executing complex queries without impacting the overall system performance. Understanding these types of space helps in optimizing the database design and operational efficiency within Teradata.