"Mario King" <hliji@yahoo.com> wrote in message
news:a3f90977.0409240944.5a131be@posting.google.co m...
| Hi,
|
| Does anyone know the PL/SQL code behind SQL Single Row Character Function,
| for example, UPPER()?

um, why?

the upper() function and other standard functions are likely written in C,
certainly not PL/SQL -- they've existed in Oracle long before PL/SQL existed

what are you trying to learn or accomplish?

++ mcs