The following example creates a structured UDT named address that has two attributes defined with predefined data types: street and zip. This type is also defined with one constructor method (address (VARCHAR(20), CHAR(5)) and three instance methods (city() , state() , and in_state()).
Because no SPECIFIC method names are specified for the instance methods city() and in_state(CHAR(2)) in this example, the system autogenerates and registers the following TVMNameI SPECIFIC names for them in the SYSUDTLIB database:
- ADDRESS_CITY_R on behalf of the city() method.
- ADDRESS_IN_STATE_R on behalf of the in_state(CHAR(2)) method.
CREATE TYPE address AS ( street VARCHAR(20), zip CHARACTER(5) ) NOT FINAL CONSTRUCTOR METHOD address( VARCHAR(20), CHARACTER(5) ) RETURNS address SPECIFIC address_constructor_1 SELF AS RESULT LANGUAGE C PARAMETER STYLE SQL DETERMINISTIC NO SQL, INSTANCE METHOD city() RETURNS VARCHAR(20) LANGUAGE C PARAMETER STYLE SQL DETERMINISTIC NO SQL, METHOD state() RETURNS CHARACTER(2) SPECIFIC address_state RETURNS NULL ON NULL INPUT LANGUAGE C PARAMETER STYLE SQL DETERMINISTIC NO SQL, METHOD in_state(CHARACTER(2)) RETURNS CHARACTER(1) LANGUAGE C PARAMETER STYLE SQL DETERMINISTIC NO SQL;