- INSTANCE
- The method signature being defined is an instance method.
- SYSUDTLIB
- An optional keyword that indicates that method_name is being created in the SYSUDTLIB database.
- method_name
- Name for the method whose signature being added to the type definition for UDT_name.
- CAST FROM
- The result predefined data type returned by the external function that is to be converted to the type specified by the RETURNS clause.
For example:
...RETURNS DECIMAL(9,5) CAST FROM FLOAT...
- specific_method_name
- Specific name of the method whose signature is being added to the type definition for UDT_name. Optionally, you can specify containing database name, which is SYSUDTLIB.
- SELF AS RESULT
- Specifies that the method is type-preserving.