Fixed-Length Opaque Types

A fixed-length opaque type has an internal structure of fixed size. To create a fixed-length opaque type, specify the size of the internal structure, in bytes, for the INTERNALLENGTH modifier. The next example creates a fixed-length opaque type called fixlen_typ and allocates 8 bytes for storing this data type.

CREATE OPAQUE TYPE fixlen_typ(INTERNALLENGTH=8, CANNOTHASH)