This section provides a brief overview of how Teradata client products support user-defined custom data types known as User-Defined Types (UDTs), and user-defined custom functions known as User-Defined Methods (UDMs).
For more in depth information about using UDTs and UDMs see Introduction to Teradata (B035‑1091), SQL External Routine Programming (B035‑1147) and SQL Fundamentals (B035‑1141).