ADF Basics: Call PL/SQL Function with OUT parameter in ADF Application

Previous post was about calling PL/SQL Procedure with OUT parameters in ADF Application
ADF Basics: Call PL/SQL Procedure with OUT parameter in ADF Application

And this post is about calling PL/SQL Function with OUT parameters. Basic difference between a Function and Procedure is that Function must return a value but procedure may or may not return a value
So there is always one OUT parameter in PL/SQL Function