Netezza allows you to extend SQL by using user-defined extensions (UDXs), as well as User-Defined Analytic Processes (UDAPs). UDXs can be thought of as the user-defined counterparts of built-in SQL Functions. They are called from SQL in the same manner and follow the same guidelines for input and output. UDAPs, although called from SQL similarly to UDXs, are actually applications that run when called. The UDAP concept allows a Netezza developer to implement a freestanding, executable data-processing program, that runs ''out of process'' that is, outside the system, and register it in a database. This course will teach you how to develop User Defined Extensions including: User Defined Functions (UDFs), User Defined Aggregates (UDAs), User Defined Table Functions (UDTFs), and User Defined Analytic Processes (UDAPs). You will develop these User Defined Extensions using the Netezza command line utilities to compile and register these in-database analytics.
