Similarities With The Syntax For CREATE TYPE (Distinct Form) - Advanced SQL Engine - Teradata Database

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

The major distinguishing characteristics are the following:

• The AS attribute_name list with an optional INSTANTIABLE specification.

  For CREATE TYPE (Distinct Form), the corresponding clause is the AS predefined_data_type clause.

• The mandatory NOT FINAL specification.

  For CREATE TYPE (Distinct Form), the mandatory specification is FINAL.

• The ability to create constructor method signatures, which you cannot do for distinct types.