Overloading a function provides applications with the ability to call one SQL UDF and pass arguments with data types that are determined at run time.
However, defining C or C++ functions to handle different combinations of parameter types can become cumbersome.
As an alternative to function overloading, consider defining a single C or C++ function with up to eight parameters that are defined as dynamic user-defined types (UDTs).
For details on using dynamic UDTs, see Defining Functions that Use UDT Types.