16.20 - Similarities With The Syntax For CREATE TYPE (Structured Form) - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Detailed Topics

Teradata Database
Teradata Vantage NewSQL Engine
Release Number
March 2019
Content Type
Programming Reference
Publication ID
English (United States)

The syntax for CREATE TYPE (Distinct Form) is similar to that for the CREATE TYPE (Structured Form) statement.

The major distinguishing characteristics for distinct types are the following:

  • The AS predefined_data_type clause.

    For CREATE TYPE (Structured Form), the corresponding clause is AS attribute_name list with an optional INSTANTIABLE specification.

  • The mandatory FINAL specification.
  • The inability to create a user-defined constructor method signature for a distinct type.

    Structured UDTs allow you to define constructor method signatures.