Defines or redefines a CLI (Command Language Interpreter) symbol.

1  –  Input

       This function takes two parameters as input. The first is the
       symbol name; the second is the value to be given to the symbol.

2  –  Output

       None.

3  –  Example

       DTR> FN$SET_SYMBOL("MY_SYMBOL","ITS_VALUE")
       DTR> PRINT FN$GET_SYMBOL("MY_SYMBOL");

                   FN$GET
                   SYMBOL

       ITS_VALUE

       DTR>