The full name of a DB2 Extender UDF is mmdbsys.function-name. The full name of a DB2 extender UDT is mmdbsys.type-name, where mmdbsys is the schema-name of the function or distinct type. For example, the full name of the Content UDF is mmdbsys.Content; the full name of the DB2Image data type that is created by the Image Extender is mmdbsys.DB2Image. You can omit the mmdbsys schema-name if you previously set the current functionpath to mmdbsys, for example:
SET CURRENT FUNCTION PATH = mmdbsys, CURRENT FUNCTION PATH
SET CURRENT PATH = mmdbsys, CURRENT PATH